A) \[{{H}_{2}}C=C{{H}_{2}}\text{ }and\text{ }C{{H}_{3}}-C\equiv C-C{{H}_{3}}\]
B) \[HC\equiv CH\,\,and\,\,C{{H}_{3}}-C{{H}_{2}}-C\equiv CH\]
C) \[HC\equiv CH\,\,and\,\,C{{H}_{3}}-C\equiv CH\]
D) \[C{{H}_{3}}-C{{H}_{2}}-C\equiv CH\,\,and\,\,C{{H}_{3}}-C\equiv C-C{{H}_{3}}\]
Correct Answer: D
Solution :
Only terminal alkyne gives white ppt with tollen reagent Alkene and Alkyne both gives test of unsaturation with\[B{{r}_{2}}/CC{{l}_{4}}\].
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