MHT CET Chemistry question

Which of the following is TRUE for diamond? [AFMC 1997]

(A)Diamond is a good conductor of electricity
(B)Diamond is soft
(C)Diamond is a bad conductor of heatCorrect
(D)Diamond is made up of C, H and O

Answer: (C)

Solution

Diamond is a covalent network of carbon atoms only, so (d) is false; it is extremely hard, so (b) is false, and it has no free electrons, so it does not

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Question ID VK-043046