Hydrocarbons Question 248
Question: A compound (X) $ (C_5H_8) $ reacts with ammonical $ AgNO_3 $ to give a white precipitate, and on oxidation with hot alkaline $ KMnO_4 $ gives the acid, $ {{(CH_3)}_2}CHCOOH $ , therefore X is -
Options:
A) $ CH_2=CH-CH=CH-CH_3 $
B) $ CH_3-CH=CH-CH_2-CH_3 $
C) $ {{(CH_3)}_2}CH-C=CH $
D) $ {{(CH_3)}_2}C=C\equiv CH_2 $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Compound X reacts with ammonical $ AgNO_3 $ solution, so it must be a terminal alkyne.
Formation of $ {{(CH_3)}_2}CHCOOH $ on oxidation of X with hot alkaline $ KMnO_4 $ further confirms that X is $ {{(CH_3)}_2}CHC\equiv CH.$
BETA
