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STD 11 - 9. Hydricarbon — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 9. Hydricarbon4 Marks
MCQ
An unknown compound $(A)$ has a molecular formula $C_4H_6$. When $(A)$ is   treated with excess of $Br_2$ a new substance $(B)$ with formula $C_4H_6Br_4$ is formed. $(A)$ forms a white $ppt.$ with amrnonical silver nitrate  solution. $(A)$ may be
  • ✓
    $But-1-yne$
  • B
    $But-2-yne$
  • C
    $But-1-ene$
  • D
    $But-2-ene$
✓

Answer

Correct option: A.
$But-1-yne$
a
$(a)\,(A)\,H- C \equiv C-CH_2-CH_3$ (Terminal alkyne gives white $ppt$. with  ammonical $AgNO_3$ )

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