Deactivation of Benzene Ring

Q. $N{H}_{2}OH$ forms $syn$ and $anti$ isomer with :

1. benzaldehyde
2. acetone
3. acetaldehyde
4. benzophenone

Q. Arrange the following compounds in their decreasing orders of their relative rate of nitration

1. Nitrobenzene
2. Chlorobenzene
3. Benzene
4. Phenol

Q. isomer is formed in major quantities during nitration of nitrobenzene.

1. $\mathrm{Meta}$
2. $\mathrm{Ortho}$
3. $\mathrm{Para}$
4. $\mathrm{Ipso}$

Q. 50.0 kg of N, (g) and 10.0 kg of H (9) are mixed to produce NH (9) Calculate the mcies NH, (a) formed. identify the limiting reagent in the production of NH, in this situation Hint: N(g)+3H, (g) 2NH, (9)

Q. Arrange the following compounds in their decreasing orders of their relative rate of nitration

1. Nitrobenzene
2. Chlorobenzene
3. Benzene
4. Phenol

Q.
How structures for F are possible?

Q. isomer is formed in major quantities during nitration of nitrobenzene.

1. $\mathrm{Meta}$
2. $\mathrm{Ortho}$
3. $\mathrm{Para}$
4. $\mathrm{Ipso}$

Q. Which of the following is not a meta directing group?

1. $-\stackrel{\oplus }{N}{H}_3$
2. $H_{3}C-O-\stackrel{O}{\stackrel{||}{\underset{OC{H}_3}{\underset{|}{P}}}}-O-$
3. $-B(OH{)}_2$
4. $-C{H}_3$