Write 'true' or 'false' against the following statements :

(a) Charcoal is a good adsorbent.

(b) Coke is obtained by destructive distillation of sugar.

(c) Activated charcoal is a good conductor of electricity.

(d) Wood charcoal is an important constituent of gun powder.

(e) Coal gas is used in the preparation of artificial fertilizers.

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Solution

(a) Charcoal is a good adsorbent. $⟶$ True.
(b) Coke is obtained by destructive distillation of sugar. $⟶$ False.
(c) Activated charcoal is a good conductor of electricity. $⟶$ False.
(d) Wood charcoal is an important constituent of gunpowder. $⟶$ True.
(e) Coal gas is used in the preparation of artificial fertilizers. $⟶$ False.

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Similar questions

Give two uses for each of the following :

(a) coal

(b) coke

(d) sugar charcoal

(e) bone charcoal

(f) lamp black

Answer the following questions :

(a) What is destructive distillation? What are the products formed due to the destructive distillation of coal?

(b) Why are wood charcoal used in water filters and gas masks?

(d) How many carbon atoms are there in Buckminster fullerenes?

Choose the correct alternative :

(a) Anthracite is

(i) an inferior type of coal

(ii) a superior type of coal

(iii) the cheapest form of coal

(iv) none of the above

(b) Destructive distillation of coal yields

(i) coal tar

(ii) coal gas

(iii) coke

(iv) all of the above

(i) an amorphous form of carbon

(ii) a crystalline form of carbon

(iii) a pure form of carbon

(iv) a cluster of carbon atoms

(d) The process by which decayed plants slowly convert into coal is called

(i) petrification

(ii) carbonisation

(iii) carbonification

(iv) fermentation

(e) The purest form of the amorphous carbon is

(i) wood charcoal

(ii) sugar charcoal

(iii) bone charcoal

(iv) lamp black

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