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question_answer1)
Which of the following elements is a metal?
A)
Nitrogen done
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B)
Oxygen done
clear
C)
Sodium done
clear
D)
Sulphur done
clear
E)
None of these done
clear
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question_answer2)
Which of the following is a non-metal?
A)
Sodium done
clear
B)
Magnesium done
clear
C)
Calcium done
clear
D)
Phosphorus done
clear
E)
None of these done
clear
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question_answer3)
Which of the following metals is the most reactive metal among the following?
A)
Lead done
clear
B)
Iron done
clear
C)
Copper done
clear
D)
Mercury done
clear
E)
None of these done
clear
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question_answer4)
When cinnabar (an ore of mercury) is heated in the presence of oxygen, the gas evolved is:
A)
\[{{O}_{2}}\] done
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B)
\[S{{O}_{2}}\] done
clear
C)
\[S{{O}_{3}}\] done
clear
D)
\[C{{O}_{2}}\] done
clear
E)
None of these done
clear
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question_answer5)
An alloy is a mixture of:
A)
Metals done
clear
B)
Metals and non-metals done
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C)
Non-metals done
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D)
Both [a] and [b] done
clear
E)
None of these done
clear
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question_answer6)
The unwanted materials or impurities present in the ores are called:
A)
Mineral done
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B)
Alloy done
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C)
Gangue done
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D)
Corrosion done
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E)
None of these done
clear
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question_answer7)
Rusting of iron can be prevented by:
A)
Painting done
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B)
Galvanisation done
clear
C)
Greasing done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer8)
Which of the following is an alloy of mercury?
A)
Brass done
clear
B)
Solder done
clear
C)
Amalgam done
clear
D)
Cinnabar done
clear
E)
None of these done
clear
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question_answer9)
Which one of the following metals is used for making ornaments?
A)
Gold done
clear
B)
Silver done
clear
C)
Platinum done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer10)
An element X reacts with oxygen and forms oxide of X which turns red litmus Solution blue. An element X is a:
A)
Non-metal done
clear
B)
Metal done
clear
C)
Plastic done
clear
D)
Either [a] or [b] done
clear
E)
None of these done
clear
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question_answer11)
The gas released when metals react with water:
A)
Nitrogen done
clear
B)
Oxygen done
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C)
Hydrogen done
clear
D)
Chlorine done
clear
E)
None of these done
clear
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question_answer12)
Which one of the following statements is incorrect?
A)
Potassium reacts with oxygen to form basic oxide. done
clear
B)
Copper reacts with dilute hydrochloric acid to form copper chloride and hydrogen gas. done
clear
C)
Magnesium nitrate is formed when magnesium reacts with dilute nitric acid. done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer13)
Which one of the following is correct about aqua-regia?
A)
It is a mixture of one part of concentrated nitric acid and three parts of concentrated hydrochloric acid. done
clear
B)
It is a mixture of one part of dilute nitric acid and three parts of concentrated sulphuric acid. done
clear
C)
It can dissolve all metals. done
clear
D)
Both [a] and [c] done
clear
E)
None of these done
clear
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question_answer14)
Few metals are given below. Zn, Sn, Ag, Na, Ca Arrange the above given metals from least reactive to most reactive.
A)
\[Sn<Na<Zn<Ca<Ag\] done
clear
B)
\[Ag<Zn<Sn<Na<Ca\] done
clear
C)
\[Ag<Sn<Zn<Ca<Na\] done
clear
D)
\[Zn<Sn<Ag<Ca<Na\] done
clear
E)
None of these done
clear
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question_answer15)
Which one of the following metals is more reactive than hydrogen?
A)
Ag done
clear
B)
Au done
clear
C)
Pb done
clear
D)
Hg done
clear
E)
None of these done
clear
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question_answer16)
In the given chemical reaction, which metal is more reactive? \[FeS{{O}_{4}}+Zn\xrightarrow[{}]{{}}ZnS{{O}_{4}}+Fe\]
A)
Fe done
clear
B)
Zn done
clear
C)
\[{{O}_{2}}\] done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer17)
In which one of the following displacement reaction does not occur?
A)
Copper metal with silver nitrate solution. done
clear
B)
Copper metal with sodium chloride solution. done
clear
C)
Silver metal with iron sulphate solution. done
clear
D)
Both [b] and [c] done
clear
E)
None of these done
clear
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question_answer18)
An element Y reacts with oxygen to form oxides of Y which turns blue litmus solution to red. Element Y is:
A)
A metal done
clear
B)
A non-metal done
clear
C)
Either [a] or [b] done
clear
D)
Plastic done
clear
E)
None of these done
clear
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question_answer19)
Which one of the following will displace hydrogen from acids to form salts?
A)
Cl done
clear
B)
P done
clear
C)
S done
clear
D)
Mg done
clear
E)
None of these done
clear
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question_answer20)
Which one of the following forms a basic oxide on reacting with oxygen?
A)
Iodine done
clear
B)
Potassium done
clear
C)
Fluorine done
clear
D)
Neon done
clear
E)
None of these done
clear
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question_answer21)
Which one of the following is incorrectly paired?
A)
Bass - Cu and Zn done
clear
B)
Bronze - Cu, Zn and Sn done
clear
C)
Solder - Pb and Sn done
clear
D)
Duralumin - Al, Cu, Mg and Zn done
clear
E)
None of these done
clear
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question_answer22)
The atomic number and mass number of an element x are 15 and 31respectively.
Element | No. of electrons | No. of electrons | No. of neutrons |
(i) | 15 | 15 | 16 |
(ii) | 31 | 15 | 15 |
(iii) | 31 | 31 | 15 |
(iv) | 15 | 16 | 14 |
Which one of these represents X?
A)
(i) done
clear
B)
(ii) done
clear
C)
(iii) done
clear
D)
(iv) done
clear
E)
None of these done
clear
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question_answer23)
Number of valence electrons in potassium is:
A)
2 done
clear
B)
1 done
clear
C)
3 done
clear
D)
4 done
clear
E)
None of these done
clear
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question_answer24)
Which one of the following statements is correct?
A)
All metals are electropositive in nature. done
clear
B)
Metals are good reducing agents. done
clear
C)
All alkali metals can be cut by a knife. done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer25)
Which one of the following is a semi-metal?
A)
Ge done
clear
B)
Si done
clear
C)
Sb done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer26)
Which one of the following is a redox reaction?
A)
\[Zn+C{{l}_{2}}\xrightarrow[{}]{{}}Zn\,c{{l}_{2}}\] done
clear
B)
\[2Ca+{{H}_{2}}\xrightarrow[{}]{{}}2Ca{{H}_{2}}\] done
clear
C)
\[Mg+2{{H}_{2}}O\xrightarrow[{}]{{}}Mg{{(OH)}_{2}}+{{H}_{2}}\] done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer27)
The metal which forms hydride with hydrogen is:
A)
Sodium done
clear
B)
Potassium done
clear
C)
Calcium done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer28)
A metal having electronic configuration 2, 8, 8, 3 is:
A)
Calcium done
clear
B)
Potassium done
clear
C)
Silver done
clear
D)
Scandium done
clear
E)
None of these done
clear
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question_answer29)
Bauxite is an ore of which metal?
A)
Iron done
clear
B)
Aluminium done
clear
C)
Copper done
clear
D)
Tin done
clear
E)
None of these done
clear
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question_answer30)
Which one of the following vigorously react with acidic solution to give hydrogen?
A)
Barium done
clear
B)
Zinc done
clear
C)
Copper done
clear
D)
Mercury done
clear
E)
None of these done
clear
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question_answer31)
Which one of the following reacts vigorously with water?
A)
Copper done
clear
B)
Mercury done
clear
C)
Sodium done
clear
D)
Gold done
clear
E)
None of these done
clear
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question_answer32)
Due to its inertness, it is used to preserve cake by freezing it quickly?
A)
Liquid sulphur done
clear
B)
Liquid nitrogen done
clear
C)
Liquid carbon done
clear
D)
Chlorine done
clear
E)
None of these done
clear
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question_answer33)
Phosphorus tri-chloride is:
A)
Ionic chloride done
clear
B)
Covalent chloride done
clear
C)
Metallic chloride done
clear
D)
Both [a] and [c] done
clear
E)
None of these done
clear
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question_answer34)
Which one among the following is an amphoteric oxide?
A)
\[A{{l}_{2}}{{O}_{3}}\] done
clear
B)
\[{{P}_{2}}{{O}_{5}}\] done
clear
C)
\[{{N}_{2}}O\] done
clear
D)
\[F{{e}_{2}}{{O}_{3}}\] done
clear
E)
None of these done
clear
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question_answer35)
Which one of the following metals exists in liquid state at room temperature
A)
Ag done
clear
B)
Cr done
clear
C)
Hg done
clear
D)
Br done
clear
E)
None of these done
clear
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question_answer36)
An element M forms an oxide\[{{M}_{2}}O\]. An aqueous solution of\[{{M}_{2}}O\] 0 turns n litmus paper blue. The nature of the oxide\[{{M}_{2}}O\] is:
A)
Neutral oxide done
clear
B)
Acidic oxide done
clear
C)
Basic oxide done
clear
D)
Either [b] or [c] done
clear
E)
None of these done
clear
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question_answer37)
In which one of the following pairs of reactants displacement reaction will takes place?
A)
\[CaS{{O}_{4}}+Pb\xrightarrow[{}]{{}}\] done
clear
B)
\[FeS{{O}_{4}}+Pb\xrightarrow[{}]{{}}\] done
clear
C)
\[NaS{{O}_{4}}+Ca\xrightarrow[{}]{{}}\] done
clear
D)
\[FeS{{O}_{4}}+Zn\xrightarrow[{}]{{}}\] done
clear
E)
None of these done
clear
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question_answer38)
Which one of the following is the best electrical conductor?
A)
Copper done
clear
B)
Silver done
clear
C)
Aluminium done
clear
D)
Xenon done
clear
E)
None of these done
clear
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question_answer39)
Which pair of compounds are not ionic?
A)
\[KCl\,\,and\,\,HCl\] done
clear
B)
\[CC{{l}_{4}}\,\,and\,\,C{{H}_{4}}\] done
clear
C)
\[CC{{l}_{4}}\,\,and\,\,NaCl\] done
clear
D)
\[KCl\,\,and\,\,CC{{l}_{4}}\] done
clear
E)
None of these done
clear
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question_answer40)
The electronic configuration of three elements are given below.
X - 2 8 2 |
Y - 2 8 6 |
Z - 2 8 1 |
Which two elements will combine to form an ionic compound?
A)
X and Y done
clear
B)
Y and Z done
clear
C)
X and Z done
clear
D)
Both [a] and [b] done
clear
E)
None of these done
clear
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