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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3hx142

Which statements about chloroform and carbon tetrachloride are correct?

AThe carbylamine reaction of chloroform with aniline gives phenyl cyanide, $C X_{6} H X_{5} CN$
BChloroform is oxidised slowly by air in light to $COCl X_{2}$ ; about 1 percent ethanol is added so that phosgene is changed to diethyl carbonate
CChloroform on warming with aniline and alcoholic $KOH$ gives phenyl isocyanide
D $CCl X_{4}$ has a large dipole moment and therefore dissolves readily in water

Answer: B, C

Chloroform reacts with

O X_{2}

to phosgene, which ethanol converts to diethyl carbonate; carbylamine reaction gives an isocyanide

C X_{6} H X_{5} NC

.

CCl X_{4}

is tetrahedral and non-polar (zero dipole moment), so it is insoluble in water. The carbylamine product is an isocyanide, not a cyanide.

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