Which one of the following chemical equations is balanced?
A)
\[Na+{{O}_{2}}\to N{{a}_{2}}O\]
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B)
\[{{H}_{2}}{{O}_{2}}\to {{H}_{2}}O+{{O}_{2}}\]
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C)
\[Mg{{(OH)}_{2}}+2HCL\to MgC{{L}_{2}}+2{{H}_{2}}O\]
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D)
\[Al{{(OH)}_{3}}\to A{{l}_{2}}{{O}_{3}}+{{H}_{2}}O\]
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E)
None of these
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The general formula of alkynes is:
A)
\[{{C}_{n}}{{H}_{2n-2}}\]
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B)
\[{{C}_{n}}{{H}_{2n}}\]
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C)
\[{{C}_{n}}{{H}_{2n+2}}\]
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D)
\[{{C}_{n}}{{H}_{2n-1}}\]
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E)
None of these
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Name the defect of vision in a person whose near point is more than 30 cm away.
A)
Myopia
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B)
Hypermetropia
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C)
Presbyopia
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D)
Cataract
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E)
None of these
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How many joules of energy are there in 1 eV?
A)
\[1.602\text{ }\times \text{ }{{10}^{-18}}J\]
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B)
\[1.602\text{ }\times \text{ }{{10}^{-19}}J\]
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C)
\[0.6602\text{ }\times \text{ }{{10}^{-19}}J\]
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D)
\[1.602\text{ }\times \text{ }{{10}^{-21}}J\]
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E)
None of these
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Calculate the amount of energy that will be available to big fish in the following food chain, if 10000 J of energy is available to small algae from sun. Small algae \[\to \] Zooplankton \[\to \] Fish \[\to \] Big fish
A)
0.1 J
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B)
1 J
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C)
10 J
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D)
100 J
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E)
None of these
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The magnetic field inside a long straight solenoid carrying current:
A)
Is the same at all points
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B)
Is zero
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C)
decreases as we move towards its ends
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D)
increases as we move towards its ends
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E)
None of these
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In which one of the following cases displacement reaction does not occur?
A)
When a strip of zinc metal is placed in copper sulphate solution
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B)
When an iron nail is placed in copper sulphate solution
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C)
When a piece of magnesium metal is placed in copper sulphate solution
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D)
When a strip of lead metal is placed in a solution of copper chloride
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E)
None of these
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Which one of the following acids will ionized in water completely?
A)
\[HCl\]
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B)
\[C{{H}_{3}}COOH\]
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C)
\[{{H}_{2}}C{{O}_{3}}\]
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D)
\[{{H}_{2}}S{{O}_{3}}\]
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E)
None of these
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Which one of the following types of gas is produced when a metal reacts with a base?
A)
Hydrogen
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B)
Carbon dioxide
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C)
Carbon monoxide
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D)
Helium
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E)
None of these
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A metal is used for making bells because of which of the following properties of metals?
A)
Malleability
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B)
Ductility
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C)
Conductivity
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D)
Sonorous
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E)
None of these
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A rectangular coil of copper wire is rotated in a magnetic field. The direction of induced current changes once in each:
A)
Two revolutions
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B)
Half revolution
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C)
One revolution
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D)
One-fourth revolution
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E)
None of these
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The electronic configurations of three elements X, Y and Z are \[X-2,\]8; \[Y-2,\] 8, 7 and \[Z-2,\] 8, 2. Which of the following is correct?
A)
X is a metal
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B)
Y is a metal
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C)
Z is a non-metal
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D)
Y is a non-metal and Z is a metal
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E)
None of these
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Which of the following statements about diamond is incorrect?
A)
A diamond crystal is a giant molecule of carbon atoms
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B)
Each carbon atoms in a diamond crystal is linked to four other carbon atoms by strong ionic bonds
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C)
Diamond does not conduct electricity
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D)
The melting point of diamond is more than \[3500{}^\circ C\]
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E)
None of these
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When sperms come out of testes, they get stored temporarily in:
A)
Vas deferens
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B)
Scrotal sac
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C)
Epididymis
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D)
Urethra
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E)
None of these
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From top to bottom in a group of the periodic table the electropositive character of the element:
A)
Increases
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B)
decreases
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C)
Remains unchanged
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D)
changes irregularly
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E)
None of these
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Out of the elements K, Li, Ca, S and Kr which has the highest ionization energy and which has the lowest ionization energy?
A)
Highest: K; Lowest: Kr
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B)
Highest: S; Lowest: Li
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C)
Highest: Kr; Lowest: K
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D)
Highest: Ca; Lowest: K
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E)
None of these
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The correct sequence of anaerobic reaction in yeast is:
A)
Glucose \[\xrightarrow{Cytoplasm}\] Pyruvate \[\xrightarrow{mitochondria}\]Ethanol + Carbon dioxide
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B)
Glucose \[\xrightarrow{Cytoplasm}\] pyruvate \[\xrightarrow{Cytoplasm}\] Lactic acid
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C)
Glucose \[\xrightarrow{Cytoplasm}\] pyruvate \[\xrightarrow{mitochondria}\]Lactic acid
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D)
Glucose \[\xrightarrow{Cytoplasm}\]pyruvate \[\xrightarrow{Cytoplasm}\]Ethanol + carbon dioxide
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E)
None of these
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Which one of the following enzymes present in pancreatic juice is responsible for splitting of polysaccharides?
A)
Lipase
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B)
Trypsin
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C)
Chymotrypsin
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D)
Amylase
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E)
None of these
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Which of the following animals has the transitional heart?
A)
Fish
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B)
Frog
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C)
Bird
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D)
Lion
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E)
None of these
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Which one of the following statements is incorrect?
A)
The brain is surrounded by three membranes called meninges
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B)
The space between the meninges is filled with a cerebrospinal fluid
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C)
The hindbrain contains pons, cerebellum and medulla
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D)
Medulla controls various involuntary actions like heartbeat, breathing, blood pressure etc. of our body
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E)
None of these
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The plant hormone essential for cell division is:
A)
abscisic acid
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B)
auxin
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C)
Gibberellin
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D)
cytokinin
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E)
None of these
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Which one of the following plants cannot be reproduced by vegetative propagation?
A)
Bryophyllum
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B)
Guava
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C)
Potato
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D)
Water hyacinth
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E)
None of these
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If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant (rr YY) the seeds produced in \[{{F}_{1}}\] generation are:
A)
Round and yellow
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B)
round and green
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C)
Wrinkled and green
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D)
wrinkled and yellow
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E)
None of these
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Choose the incorrect statement from the following.
A)
Economic development is linked to environment conservation
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B)
Sustainable development is a long planned and persistent development
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C)
Sustainable development does not con-sider the viewpoints of stakeholders
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D)
Sustainable development encourages devel- opment for current generation and conservation of resources for future generation
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E)
None of these
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A 1 cm high object is placed at a distance of 2\[f\]from a convex lens. What is the height of the image formed?
A)
2 cm
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B)
0.5 cm
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C)
1 cm
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D)
4 cm
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E)
None of these
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An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm. Find the position and nature of the image.
A)
Position: 6 cm behind the mirror; Nature: virtual and erect
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B)
Position: 6 cm in front of the mirror; Nature: virtual and erect
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C)
Position: 6 cm behind the mirror; Nature: real and inverted
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D)
Position: 6 cm in front of the mirror; Nature: real and inverted
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E)
None of these
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A person needs a lens of power \[-5.5\]dioptres for correcting his distant vision. Find the focal length of the lens required for correcting his distant vision?
A)
\[-\,\,6cm\]
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B)
\[-\,\,12cm\]
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C)
\[-\,\,4cm\]
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D)
\[-\,\,2cm\]
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E)
None of these
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If 100 J of heat are produced each second in a 4\[\Omega \] resistor, calculate the potential difference across the ends of the resistor?
A)
5 V
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B)
10 V
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C)
15 V
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D)
20 V
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E)
None of these
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How many resistors of 176 \[\Omega \] each should be connected in parallel so that a current of 5 A flows through the circuit when the line voltage is 220 V?
A)
3
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B)
4
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C)
5
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D)
6
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E)
None of these
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The major problem in harnessing nuclear energy is how to:
A)
Split nuclei
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B)
Sustain the reaction
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C)
Dispose of spent fuel safely
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D)
Convert nuclear energy into electrical energy
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E)
None of these
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Identify the group which is different from the others.
A)
CZHK
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B)
MLAG
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C)
XUBU
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D)
SENO
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E)
None of these
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Complete the following series. N5V, K7T, ? , E14P, B19N
A)
H9R
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B)
H10Q
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C)
H10R
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D)
I10R
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E)
None of these
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Direction for Question 33 to 35: Study the following information carefully and answer the questions. There are six persons A, B, C, D, E and F. C is the sister of F. B is the brother of E's husband, D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group.
Who is the mother?
A)
A
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B)
B
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C)
D
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D)
E
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E)
None of these
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Direction for Question: Study the following information carefully and answer the questions. There are six persons A, B, C, D, E and F. C is the sister of F. B is the brother of E's husband, D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group.
Who is E's husband?
A)
B
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B)
C
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C)
A
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D)
F
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E)
None of these
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Direction for Question: Study the following information carefully and answer the questions. There are six persons A, B, C, D, E and F. C is the sister of F. B is the brother of E's husband, D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group.
How many male members are there in the group?
A)
One
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B)
Two
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C)
Three
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D)
Four
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E)
None of these
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Find the number which replaces the question mark.
A)
100
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B)
88
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C)
137
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D)
181
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E)
None of these
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Find the number which replaces the question mark.
A)
200
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B)
190
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C)
140
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D)
217
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E)
None of these
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Which of the following diagrams represents the relationship among teacher, men, and women?
A)
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B)
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C)
done
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D)
done
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E)
None of these
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Direction for Question 39 & 40: Read the following information carefully and answer the questions Six persons A, B, C, D, E and F are sitting in two rows, three in each. 1. E is not at the end of any row. 2. D is second to the left of F. 3. C, the neighbor of E, is sitting diagonally opposite to D. 4. B is the neighbor of F.
Which of the following are sitting diagonally opposite to each other?
A)
F and C
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B)
D and A
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C)
A and C
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D)
A and F
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E)
None of these
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Direction for Question: Read the following information carefully and answer the questions Six persons A, B, C, D, E and F are sitting in two rows, three in each. 1. E is not at the end of any row. 2. D is second to the left of F. 3. C, the neighbor of E, is sitting diagonally opposite to D. 4. B is the neighbor of F.
Which of the following are in the same row?
A)
A and E
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B)
E and D
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C)
C and B
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D)
A and B
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E)
None of these
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Look at the following chemical equation and choose the correct option. \[Mn{{O}_{2}}+4HCl\to MnC{{l}_{2}}+2{{H}_{2}}O+C{{l}_{2}}\] (i) \[HCI\]is getting oxidised (ii) \[Mn{{O}_{2}}\] is getting reduced (iii) \[HCI\] is the reducing agent (iv) \[Mn{{O}_{2}}\] is the reducing agent
A)
Only (i) and (ii)
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B)
only (ii) and (iii)
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C)
Only (i) and (iii)
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D)
all (i), (ii) and (iii)
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E)
None of these
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The table given below has four blank spaces named as a, b, c and d.
Salt obtained from Name of the salt Formula Base Acid (i) Ammonium chloride \[N{{H}_{4}}CI\] \[N{{H}_{4}}OH\] a (ii) Copper sulphate b c \[{{H}_{2}}S{{O}_{4}}\] (iii) Magnesium nitrate \[Mg{{(N{{O}_{3}})}_{2}}\] d \[HN{{O}_{3}}\]
From the options given below choose the correct one to fill in the gap.
A)
\[a:HCl,\,\,b:CuS{{O}_{4}},\,\,c:CuO,\,\,MgO{{H}_{2}}\]
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B)
\[a:HCl,\,\,b:CuS{{O}_{4}},\,\,c:CuO{{H}_{2}},\,\,MgO\]
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C)
\[a:HCl,\,\,b:CuO{{H}_{2}},\,\,c:Cu,\,\,MgO{{H}_{2}}\]
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D)
\[a:HCl,\,\,b:CuS{{O}_{4}},\,\,c:CuO{{H}_{2}},\,\,MgO{{H}_{2}}\]
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E)
None of these
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A non-metal A which is the largest constituent of air, when heated with \[{{H}_{2}}\] in 1: 3 ratio in the presence of catalyst (Fe) gives a gas B. On heating with \[{{O}_{2}}\] it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D which acts as a strong oxidizing agent. Identify A, B, C and D
A)
\[A-{{N}_{2}},\,\,B-HN{{O}_{3}},\,\,C-NO,D-N{{H}_{3}}\]
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B)
\[A-{{N}_{2}},\,\,B-N{{H}_{3}},\,\,C-NO,D-HN{{O}_{3}}\]
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C)
\[A-{{N}_{2}},\,\,B-NO,\,\,C-HN{{O}_{3}},D-N{{H}_{3}}\]
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D)
\[A-{{N}_{2}},\,\,B-HN{{O}_{3}},\,\,C-N{{H}_{3}},D-NO\]
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E)
None of these
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Which of the following statements is/are correct about heart? (i) When the left atrium contracts, the oxygenated blood is pushed into the left ventricle through a valve. (ii) When left ventricle contracts, the oxygenated blood is forced into pulmonary vein. (iii) When the right atrium contracts, oxygenated blood is pushed into the right ventricle. (iv) When the right ventricle contracts, the deoxygenated blood is pumped into the lungs through pulmonary artery.
A)
(i) and (ii)
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B)
(ii) and (iii)
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C)
(iii) and (iv)
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D)
(i) and (iv)
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E)
None of these
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Look at the given figure and match the following.
[A] Production of eggs (I) Q [B] Site of fertilization (II) R [C] Site of implantation (III) P [D] Entry of the sperms (IV) S
A)
A - I, B - III, C - II, D - IV
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B)
A - III, B - II, C - IV, D - I
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C)
A - III, B - I, C - II, D - IV
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D)
A - IV, B - III, C - II, D - I
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E)
None of these
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Which of the following statements is/ are correct? (i) Variations are actually differences among individual organisms or groups of organisms caused either by genetic differences or by environmental factors. (ii) The sources of variations are mutation and genetic recombination. (iii) Variation always brings survival advantage. (iv) Speciation takes place when geographically isolated populations have variations. (v) Darwin's theory of natural selection proposed that new species arise by slow accumulation of advantageous variations over a period of time.
A)
Only (i)
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B)
(i) and (ii)
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C)
(i), (ii), (iv) and (v)
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D)
All (i), (ii), (iii), (iv), (v)
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E)
None of these
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Look at the figure given below and find the correct match.
I. hormone release by P A. prevent diabetes II. hormone release by Q B. controls the release of sex hormones III. hormone release by R C. is responsible for secondary sexual characters in boys IV. hormone release by S D. maintains the correct salt balance in blood
A)
I-D, II-A, III-C, IV- B
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B)
I-A, II-C, III-B, IV- D
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C)
I-B, II-A, III-D, IV- C
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D)
I-B, II-A, III-C, IV- D
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E)
None of these
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Match the distances given in column A with the appropriate images in column B.
Concave mirror of focal length 15 cm Column A Column B A. 10 cm I. a magnified real image B. 20 cm II. a diminished real image C. 30 cm III. a magnified virtual image D. 35 cm IV. an image of same size as the object
A)
A - III, B - II, C - IV, D - I
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B)
A - II, B - I, C - IV, D - III
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C)
A - I, B - III, C - IV, D - II
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D)
A - III, B - I, C - IV, D - II
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E)
None of these
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Which of the following statements is/are correct? (i) When two lenses are placed in contact, the focal length of the combination is equal to the sum of the focal length of the lenses. (ii) The number of cones in the human eye is more than the number of rods. (iii) When light rays are incident on the eye, maximum deviation takes place at the cornea. (iv) When a ray of light passes from an optically denser medium to a rarer medium, it slows down.
A)
Only (iii)
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B)
(i) and (ii)
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C)
(i), (ii) and (iv)
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D)
All (i), (ii), (iii) and (iv)
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E)
None of these
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A hot plate of an electric oven connected to a 220 V line has two resistance coils A and B, each of 24 ohms resistance. When each the two coils are connected in series, the current flows in the circuit is \[{{I}_{1}}\] and when the two coils are connected in parallel, the current flows in the circuit is\[{{I}_{1}}\]. Find the value of \[{{I}_{1}}\]and\[{{I}_{2}}\].
A)
\[{{I}_{1}}=6.58\text{ }A,\,\,{{I}_{2}}=18.34\,\,A\]
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B)
\[{{I}_{1}}=18.34,\,\,{{I}_{2}}=\,\,4.58\text{ }A\]
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C)
\[{{I}_{1}}=4.58\,\,A,\,\,{{I}_{2}}=18.34\text{ }A\]
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D)
\[{{I}_{1}}=4.58\,\,A,\,\,{{I}_{2}}=20.34\text{ }A\]
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E)
None of these
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