1. 2 naoh + cl₂ → nacl + naclo + h₂o

the given reaction proceeds at:

a) 500°c
b) 200°c
c) -10°c
d) 50°c

2. divalency of heavier elements of groups 4 can be explained on the basis of :

a) low ionization
b) their large sizes
c) inert pair effect
d) low en values

3. the oxide in which cl has the highest oxidation number is:

a) clo₂
b) cl₂o₅
c) cl₂o₇
d) cl₂o₃