Hydrocarbons Question 178
Question: Order of reactivity of $ C_2H_6,C_2H_4 $ and $ C_2H_2 $ is [MH CET 2004]
Options:
A) $ C_2H_6>C_2H_4>C_2H_2 $
B) $ C_2H_2>C_2H_4>C_2H_6 $
C) $ C_2H_2>C_2H_4>C_2H_6 $
D) All are equally reactive.
Show Answer
Answer:
Correct Answer: C
Solution:
Unsaturated hydrocarbons are more reactive than saturated hydrocarbons.
Among ethyne $ (C_2H_2) $ and ethene $ (C_2H_4) $ the latter is more reactive as $ C=C $ double bond is quite strong bond and therefore ethyne generally require catalysts (like $ Hg^{2+} $ etc) in its reactions.
BETA
