Which of the following alkynes can be identified and distinguished from the rest of the alkynes on reaction with ammoniacal silver nitrate to gave a white precipitate?

C H_{3} C \equiv C - C H_{3}

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C H_{3} C H_{2} C \equiv C H

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C H_{3} C H_{2} C \equiv C C H_{3}

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C H_{3} C \equiv C C H_{2} C H_{2} C H_{3}

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Solution

The correct option is C $C H_{3} C H_{2} C \equiv C H$
Since only terminal alkyne react with ammonical $A g N O_{3}$ and gives white precipitate, only but-1-yne will react with $A g N O_{3}$ and give white precipitate and can be easily identified and distinguished from rest of the given alkynes.

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Similar questions

C h_{3} C = C - C H_{3}

C H_{3} C H_{2} - C H_{2} - C H_{3}

C H_{3} C H_{2} C = C H

C H_{3} C H = C H_{2}

C H_{3} C H_{2} C \equiv C H

C H_{3} C \equiv C C H_{3}

C H_{3} C H_{2} C H_{2} C H_{3}

C H_{3} C H = C H_{2}

^{'} X^{'}

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A g N O_{3}

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(C H_{3})_{2} C H - C O O H

X

Which of the following does not give white precipitate with ammoniacal AgNO₃

C H_{3} C \equiv C C H_{3} i) X - --- \to i i) \frac{H_{2} O}{Z n} C H_{3} - C | O - C | O - C H_{3}

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