_________ amorphous form of carbon is used as electrodes.

Sugar charcoal

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Gas carbon

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Lampblack

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Wood charcoal

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Solution

The correct option is D Gas carbon
Examples of typical materials used for electrodes in analytical chemistry are amorphous carbon, gold, and platinum. The amorphous forms of carbon are charcoal, coal, lamp black, gas carbon, and coke. Thus gas carbon which is an amorphous solid is used as electrodes.

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Similar questions

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

The crystalline form of carbon has a fixed melting point but amorphous form doesn't.

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