Identify (X) in the sequence :

$\underset{\left(\mathrm{X}\right)}{{\mathrm{C}}_3{\mathrm{H}}_8\mathrm{O}}\underset{H_{2}S{O}_4}{\overset{K_{2}C{r}_2{O}_7}{\to }}{C}_3{H}_{6}O\underset{warm}{\overset{I_2+NaOH}{\to }}CH{I}_3$

1. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-{\mathrm{CH}}_2\mathrm{OH}$

2. ${\mathrm{CH}}_3-\underset{\mathrm{OH}}{\underset{|}{\mathrm{CH}}}-{\mathrm{CH}}_3$

3. ${\mathrm{CH}}_3-\mathrm{O}-{\mathrm{CH}}_2-{\mathrm{CH}}_3$

4. ${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{CHO}$

1-propanol and 2-propanol can be best distinguished by:

Which among the following compounds is most acidic
in character :

1. HOH

2. CH₃OH

3. CH₃CH₂OH

4. ${\mathrm{CH}}_2-\underset{{\mathrm{CH}}_3}{\overset{\mathrm{OH}}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_3$

Which is more acidic?

1. o-Cresol

2. p-Nitrophenol

3. Phenol

4. m-Cresol

$\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_2\mathrm{O}}{\overset{\left(\mathrm{I}\right) {\mathrm{CH}}_3\mathrm{MgI}}{\to }}X\stackrel{Cu/575 K}{\to }Y$

The compound Y in the above sequence is
1. 2-Methyl-2-phenyl-1-propanol
2. 2-Phenyl-2-propanol
3. Acetophenone
4. 2-Methyl-1-Phenyl-2-propanol

The major product C and D formed in the following reaction respectively are:

H₃C-CH₂-CH₂-OC(CH₃)₃$\underset{∆}{\overset{excess HI}{\to }}$C+D

1. $H_{3}C-C{H}_2-C{H}_2-I$ and I-C(CH₃)₃

2. $H_{3}C-C{H}_2-C{H}_2-OH$ and I-C(CH₃)₃

3. $H_{3}C-C{H}_2-C{H}_2-I$ and HO-C(CH₃)₃

4.$H_{3}C-C{H}_2-C{H}_2-OH$  and HO-C(CH₃)₃

When vapour of a secondary alcohol is passed over heated copper at 573 K, the product formed is-

1. A carboxylic acid

2. An aldehyde

3. A ketone

4. An alkene

The compound that is most difficult to protonate is:

1.  

2.  

3.  

4.  

Ethylene oxide when treated with Grignard reagent yields :

1. Secondary alcohol

2. Tertiary alcohol

3. Cyclopropyl alcohol

4. Primary alcohol

The general molecular formula, that represents the homologous serious of alkanols is:
1. \(C_{n} H_{2 n} O_{2}\)
2. \(C_{n} H_{2 n} O\)
3. \(C_{n} H_{2 n + 1} O\)
4. \(C_{n} H_{2 n + 2} O\)