Consider the following statements :

a. ${\mathrm{CH}}_3$ group is o, p-directing group due to hyperconjugation.

b. ${\mathrm{CCl}}_3$ is meta directing group due to reverse hyperconjugation.

c.${\mathrm{CCl}}_3$  group is meta directing group due to mesomeric effect.

d. CHO group is m-directing group 

Of these statements :

1. a and b are correct

2. a and c are correct

3. a, b and d are correct

4. c and d are correct

Which among the following is correctly matched?

1. 

2. 

3. 

4. 

Arrange the reactivity of given compounds in decreasing order for hydrolysis reaction?

a. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{O}}{\left|\right|}}{\mathrm{C}}-{\mathrm{NH}}_2$

b. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{O}}{\left|\right|}}{\mathrm{C}}-\mathrm{Cl}$

c. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{O}}{\left|\right|}}{\mathrm{C}}-\mathrm{O}-\stackrel{\stackrel{\mathrm{O}}{\left|\right|}}{\mathrm{C}}-{\mathrm{CH}}_3$

d. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{O}}{\left|\right|}}{\mathrm{C}}-{\mathrm{OC}}_2{\mathrm{H}}_5$

Select the correct answer form the codes given below:

Codes :

1. a b c d

2. b c d a

3. b c a d

4. a d b c

In which reaction product formation takes place by Saytzeff rule?

1. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-\stackrel{\stackrel{\mathrm{Br}}{|}}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_3\stackrel{{\mathrm{CH}}_3\mathrm{ONa}/∆}{\to }$

2. ${\mathrm{CH}}_3-\underset{\underset{{\mathrm{CH}}_3}{|}}{\overset{\stackrel{\mathrm{OH}}{|}}{\mathrm{C}}}-{\mathrm{CH}}_3\stackrel{\mathrm{conc}.<mspace\; width="1em"></mspace>{\mathrm{H}}_2{\mathrm{SO}}_4/∆}{\to }$

3. ${\mathrm{CH}}_3-\underset{\underset{{\mathrm{CH}}_3}{|}}{\overset{\stackrel{\mathrm{Br}}{|}}{\mathrm{C}}}-{\mathrm{CH}}_3\stackrel{\mathrm{alc}.<mspace\; width="1em"></mspace>\mathrm{KOH}/∆}{\to }$

4. ${\mathrm{CF}}_3-{\mathrm{CHCl}}_2\stackrel{\mathrm{alc}.<mspace\; width="1em"></mspace>\mathrm{KOH}/∆}{\to }$

Which alcohol is most reactive for dehydrogenation or dehydration?

1. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{OH}}{|}}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_2-{\mathrm{NO}}_2$

2. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{OH}}{|}}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_2-\mathrm{CHO}$

3. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{OH}}{|}}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_2-\mathrm{CN}$

4. ${\mathrm{CH}}_3-\stackrel{\stackrel{\mathrm{OH}}{|}}{\mathrm{C}}\mathrm{H}-{\mathrm{CH}}_2-{\mathrm{COCH}}_3$

Which among the following compounds has minimum pH value?

1. butane

2. 2-butene

3. 1-butyne

4. 2-butyne

In the given reaction,

${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{C}\equiv \mathrm{C}-{\mathrm{CH}}_3\stackrel{\mathrm{Na}/{\mathrm{NH}}_3\left(\mathcal{l}\right)}{\to }\left[\mathrm{X}\right]$

[X] will be 

1. 1-phenylpropane

2. 1-phenylpropene

3. trans-1-phenyl propene

4. cis-1-phenylpropene

In the given reaction,

[X] will be:

(1) 

(2) 

(3) 

(4) 

Arrange the reactivity of given compounds in decreasing order for electrophilic addition reaction:

(i)  ${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{CH}={\mathrm{CH}}_2$

(ii) ${\mathrm{C}}_6{\mathrm{H}}_5-\underset{\underset{{\mathrm{CH}}_3}{|}}{\mathrm{C}}=\mathrm{CH}-{\mathrm{CH}}_3$

(iii) ${\mathrm{C}}_6{\mathrm{H}}_5-\underset{\underset{{\mathrm{C}}_6{\mathrm{H}}_5}{|}}{\mathrm{C}}=\mathrm{CH}-{\mathrm{CH}}_3$

(iv) ${\mathrm{H}}_2\mathrm{C}=\mathrm{CH}-{\mathrm{NO}}_2$

Select the correct answer from the codes given below:

Codes:

(1) (iv) (i) (ii) (iii)

(2) (iii) (ii) (i) (iv) 

(3) (ii) (iii) (i) (iv)

(4) (ii) (iii) (iv) (i)

Consider the following statements:

(i) Alkene is more reactive than alkyne for electrophilic addition reaction.

(ii) Alkyne gives nucleophilic as well as electrophilic addition reaction.

(iii) Alkyne is more reactive than alkene for nucleophilic addition reaction.

(iv) For electrophilic addition reaction, RI of alkyne is alkyl carbonation.

Of these, correct statements are:

(1) only (i)

(2) (i) and (ii)

(3) (i), (ii) and (iv)

(4) (i), (ii) and (iii)