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Question 8 Wh...

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Question 8
Which substance is formed by the carbonization of dead vegetation?

(a) Coal
(b) Coke
(c) Coal gas
(d) Coal tar

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Solution

The answer is (a).
Coal is formed by the carbonization of dead vegetation, whereas coke, coal tar and coal gas are formed by the destructive distillation of coal.

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Q. Question 4
Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?

(a) Coke
(b) Coal tar
(c) Coal gas
(d) CNG

Q. Question 4
Coal is processed in industries to get some useful products. Which of the following is not obtained from coal?

(a) Coke
(b) Coal tar
(c) Coal gas
(d) CNG

Q. Match the following.

	Column $A$		Column $B$
$1.$	Coke	$a .$	Used as fuel
$2.$	Coal tar	$b .$	Pure form of carbon
$3.$	Coal gas	$c .$	Thick liquid

Q. On destructive distillation, coal gives coal tar, coal gas, ammonical liqour and _________ . (coke/gasoline)

Which of the following is usually referred to as 'black gold' ?

(a) coke

(b) coal tar

(c) petroleum

(d) coal

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