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Do alkynes react with arsenic trichloride?

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in Chemistry – Class 11 by (148k points)
Do alkynes react with arsenic trichloride?

(a) Yes

(b) No

(c) Cannot say

(d) Maybe

I had been asked this question during an interview.

The query is from Hydrocarbons topic in chapter Hydrocarbons of Chemistry – Class 11

1 Answer

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Best answer
Right choice is (a) Yes

The best explanation: Yes, when ethyne reacts with arsenic trichloride in presence of anhydrous aluminium trichloride, it forms 2 chloro vinyl arsonous dichloride, it is also known as Lewisite, which is a poisonous gas. So we can say that alkynes do react with arsenic trichloride.

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