Q.

N2 is passed through overheated CaC2. Which of the following options is correct for the product formed?
I) State of hybridization of C is sp
II) Urea is an intermediate formed during hydrolysis of the above product
III) Anion present in the product is a pention
IV) Hydrolysis of product gives rise to NH3 gas slowly

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a

III and IV

b

I, II and III

c

None of the above

d

I, II and IV

answer is C.

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Detailed Solution

CaC2+N2high temperatureCaNCN+C

linear shape (sp-hybridised C- atom).

On hydrolysis, calcium cyanamide gets converted into urea which then decomposes into ammonia. This means that hydrolysis of product gives rise to NH3 gas slowly.

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