AIPMT 2010 Solved Papers
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AIPMT 2010 Chemistry
Q. 37. Which of the following structures represents Neoprene polymer?
Answer : (1)
Q. 38. Which one of the following is employed as a Tranquilizer drug?
- Promethazine
- Valium
- Naproxen
- Mifepristone.
Answer : (2)
Q. 39. Which of the following reactions will not result in the formation of carbon-carbon bonds?
- Reimer-Tieman reaction
- Cannizaro reaction
- Wurtz reaction
- Friedel-Crafts acylation
Answer: (2)
Q. 40. Which one of the following molecular hydrides acts as a Lewis acid?
Answer : (3)
Q. 41. The tendency of
, 
and 
to behave as Lewis acid decreases in the sequence:
Sol:
p-p overlap between B and F is maximum due to identical size and energy of porbitals, so electron deficiency in boron of 
is neutralized partially to the maximum extent by back donation. Hence 
is least acidic .
Answer : (2)