-
question_answer1)
Which of the following statements are correct?
(I) Coal, petroleum and natural gas are called fossil fuels. |
(II) Coal and natural gas are exhaustible substances. |
(III) CNG is more polluting than petrol. |
(IV) Coke is used in the manufacture of steel. |
A)
I and II only done
clear
B)
II and IV only done
clear
C)
I, III and IV only done
clear
D)
I, II and IV only done
clear
View Solution play_arrow
-
question_answer2)
When air is passed through red hot coke, a gaseous fuel is produced. The name of this gaseous fuel and its composition are respectively
A)
Natural gas, \[\text{CO+}{{\text{H}}_{2}}\] done
clear
B)
Producer gas, \[{{\text{N}}_{\text{2}}}\text{+CO}\] done
clear
C)
Water gas, \[{{\text{H}}_{\text{2}}}\text{+CO}\] done
clear
D)
None of these. done
clear
View Solution play_arrow
-
question_answer3)
Destructive distillation of coal is carried out by heating coal strongly to \[\text{1000 }\!\!{}^\circ\!\!\text{ C}\] in the absence of air. The various useful products obtained are
A)
Crude oil, kerosene, naphtha and heavy oil done
clear
B)
Coke, coal gas, coal tar and ammonium compounds done
clear
C)
Coal gas, petroleum gas and lignite done
clear
D)
None of these. done
clear
View Solution play_arrow
-
question_answer4)
Few statements are given below. Identify the incorrect statements and mark the appropriate option.
(i) in fractional distillation of petroleum, hydrocarbon with lowest boiling point condenses first. |
(ii) Useful substances obtained from petroleum and natural gas are termed as 'Petrochemicals'. |
(iii) Coke is used in the extraction of many metals. |
(iv) Paraffin wax used in candles, vaseline, grease, polish is obtained by destructive distillation of coal. |
A)
(i) and (ii) done
clear
B)
(i) and (iv) done
clear
C)
(i), (ii) and (iii) done
clear
D)
(ii) and (iv) done
clear
View Solution play_arrow
-
question_answer5)
In the oil wells, X forms the topmost layer, followed by Y and finally Z. X, Y and Z are respectively
A)
Natural gas, oil and water done
clear
B)
Petroleum gas, oil and natural gas done
clear
C)
Natural gas, water and oil done
clear
D)
Petroleum gas, oil and water. done
clear
View Solution play_arrow
-
question_answer6)
Read the given passage and fill in the blanks by choosing an appropriate option.
|
The process of conversion of wood into coal is called ___i___. There are three main varieties of coal which vary in their carbon content. ___ii___ has upto 96 per cent of carbon, ___iii___ has about 65 per cent carbon while ___iv___ has about 38 per cent carbon.
|
A)
B)
C)
D)
View Solution play_arrow
-
question_answer7)
In fractionating column, various fractions are obtained at various heights of the column. As the vapours reach at a height where temperature is equal to or just below the boiling point of that fraction, it will
A)
Condense to form a liquid done
clear
B)
Remain in gaseous state done
clear
C)
Condense to form a solid done
clear
D)
Escape from the column. done
clear
View Solution play_arrow
-
question_answer8)
Select the incorrect statements among the following:
(i) Bitumen is used for metalling the roads. |
(ii) Some inexhaustible natural resources like coal, petroleum and natural gas formed from the dead remains of living organisms are known as fossil fuels. |
(iii) Many useful substances are obtained from coal (commercial importance), so it is also called as 'Black gold'. |
(iv) Natural gas is used as a starting material for the manufacture of a number of chemicals and fertilisers. |
A)
(i) and (ii) only done
clear
B)
(ii) and (iii) only done
clear
C)
(ii) and (iv) only done
clear
D)
(i), (ii) and (iv) only done
clear
View Solution play_arrow
-
question_answer9)
Which of the following represents the correct decreasing order of boiling points of the given liquids.
A)
Paraffin wax > Diesel > Kerosene > Petrol done
clear
B)
Diesel > Kerosene > Petrol > Paraffin wax done
clear
C)
Kerosene > Petrol > Paraffin wax > Diesel done
clear
D)
Petrol > Paraffin wax > Diesel > Kerosene done
clear
View Solution play_arrow
-
question_answer10)
Different components of petroleum are separated by fractional distillation. What is the correct sequence of fractions obtained in the fractionating column from top to bottom?
A)
Petroleum gas, lubricating oil, kerosene, gasoline. done
clear
B)
Kerosene, petroleum gas, lubricating oil, gasoline. done
clear
C)
Petroleum gas, gasoline, kerosene, lubricating oil. done
clear
D)
Gasoline, kerosene, petroleum gas, lubricating oil. done
clear
View Solution play_arrow
-
question_answer11)
Coal tar can be used as a starting material for manufacturing
(i) Drugs
|
(ii) Photographic materials
|
(iii) Cookwares
|
(iv) Explosives
|
A)
Only (i) done
clear
B)
(ii) and (iv) done
clear
C)
(i), (ii) and (iv) done
clear
D)
(ii), (iii) and (iv) done
clear
View Solution play_arrow
-
question_answer12)
Read the following statements carefully.
X: It is a fossil fuel used in thermal power plants to produce electricity. |
Y: It is a porous, black and almost pure form of carbon. |
Z: It is a mixture of about 200 substances. X, Y and Z are respectively |
A)
Petroleum, coal gas, coke done
clear
B)
Coal, coke, coal tar done
clear
C)
CNG, bitumen, diesel done
clear
D)
Coal gas, petrol, paraffin wax. done
clear
View Solution play_arrow
-
question_answer13)
One word answers are given for a few statements. Mark the answer which is not correct.
A)
Resources which will either never run out or are replaced within a reasonable period of time ? Renewable resources. done
clear
B)
Wise and careful use of resources by not wasting them - Conservation. done
clear
C)
Conversion of wood into coal over million of years due to high temperature and pressure under the earth - Carbonisation. done
clear
D)
A black, viscous liquid extracted from the rocks which is a source of hydrocarbons - Coal tar. done
clear
View Solution play_arrow
-
question_answer14)
Which of the following represents an incorrect match?
A)
Coal gas - Methane + Hydrogen done
clear
B)
LPG - Propane + Butane done
clear
C)
Producer gas - Carbon + Nitrogen done
clear
D)
CNG - Compressed methane done
clear
View Solution play_arrow
-
question_answer15)
Read the given statements and select the correct option.
Statement 1: Petrol condenses near the top of the fractionating column while diesel oil near the middle of the column. |
Statement 2: Petrol is more volatile than diesel oil. |
A)
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1. done
clear
B)
Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1. done
clear
C)
Statement 1 is true and statement 2 is false. done
clear
D)
Both statements 1 and 2 are false. done
clear
View Solution play_arrow
-
question_answer16)
Observe the figure of destructive distillation of coal. What are the three fractions X, Y and Z?
A)
B)
C)
D)
View Solution play_arrow
-
question_answer17)
Match column I with column II and choose the correct option from the codes given below.
Column I (Amorphous forms of carbon) |
Column II (Uses) |
(P) Lamp black |
(i) For making electrodes for dry cell. |
(Q) Bone Charcoal |
(ii) In gas masks |
(R) Wood charcoal |
(iii) In extraction of metals |
(S) gas carbon |
(iv) To remove colour from sugarcane juice |
(T) Coke |
(v) For making black shoe polish |
A)
B)
C)
D)
View Solution play_arrow
-
question_answer18)
Study the given flowchart carefully.
|
|
Which of the following statements is correct?
|
A)
X can be condensed back to coal. done
clear
B)
Y and Z are useless products. done
clear
C)
Z starts burning when exposed to air. done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer19)
The given figure shows the petroleum deposit inside the earth's crust.
|
|
Which of the following is correct with respect to substance X?
I. X is chiefly made up of methane. |
II. X is stored under low pressure. |
III. X is a clean, non-polluting fuel. |
A)
I and III done
clear
B)
II and III done
clear
C)
I and II done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer20)
Fill in the blanks left in the classification of the fossil fuels.
A)
B)
C)
D)
View Solution play_arrow