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 Multiple Choice QuestionsShort Answer Type

51.

Which type of forces bind together the carbon atoms in diamond?

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52.

What is carborundum? Give its chemical formula.

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53.

What is the hybridisation state of carbon in:
(i) graphite
(ii) diamond?

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54.

Name the inert form of carbon.

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55.

Name the poisonous gas present in exhaust fumes of an automobile.

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56.

Why does carbon form a large number of compounds?

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57.

What are silicones?


Silicones are synthetic organosilicon compounds containing repeated R2SiO units held by Si–O–Si linkages.

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58.

Why are silicones used in electronic and electrical appliances?

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59.

Write the name of two important man-made silicates.

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60.

Which is the basic building unit of all silicates?

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