1.
a) 
b) 
c) 
d) 
(c )
2. Reaction by which benzaldehyde cannot be prepared
a) 
b) 
c) 
d) 
(b)
3.
a) C6H5CHO (b) C6H5OH
(c) C6H5COCH3 (d) C6H5Cl (a)
4. Which one of the following can be oxidized to the corresponding carbonyl compound?
(a) 2-Hydroxypropane (b) ortho-Nitrophenol
(c) Phenol
(d) 2-Methyl-2-hydroxypropane (a)
5.
(a) RCH2OH (b) RCOOH
(c) RCHO (d) RCH3 (c)