Ether and benzene can be separated by:-

1. Filtration

2. Distillation

3. Crystallization

4. Sublimation

Picric acid and benzoic acid can be distinguished by:

1. Aqueous NaHCO₃                   

2. Aqueous $\mathrm{NaOH}$

3. Aqueous FeCl₃                       

4. Aqueous Na₂CO₃  

Primary alcohols can be obtained from the reaction of the RMgX with:

1. HCHO                       

2. H₂O

3. CO₂                         

4. CH₃CHO

When allylic alcohol (CH₂=CH-CH₂OH) is oxidized in the presence of bromine, which of the following products will be formed?

1. Oxalic acid

2. Formic acid

3. Succinic acid

4. Acrylic acid

Consider the following reaction, 

Ethanol $\stackrel{{\mathrm{PBr}}_3}{\to }$X$\stackrel{\mathrm{Alc}.\mathrm{KOH}}{\to }$Y$\underset{\left(\mathrm{ii}\right){\mathrm{H}}_2\mathrm{O},<mspace\; width="1em"></mspace>\mathrm{heat}}{\overset{\left(\mathrm{i}\right)<mspace\; width="1em"></mspace>{\mathrm{H}}_2{\mathrm{SO}}_4,<mspace\; width="1em"></mspace>\mathrm{room}<mspace\; width="1em"></mspace>\mathrm{temperature}}{\to }}$Z

product Z is:

1. CH₂=CH₂

2. CH₃CH₂OCH₂CH₃

3. CH₃CH₂OSO₃H

4. CH₃CH₂OH

Which of the following are known as mercaptans?

1. Thio-alcohols                         

2. Thio-ethers

3. Thio-aldehydes                     

4. Thio-acids

Glycol condenses with ketones to give:

1. Cyclic acetals                   
2. Cyclic ketals
3. Acetaldehyde                   
4. oxalic acid

Given is a reaction for your reference:

\(CH_3CH_2CH_2OH \xrightarrow[160\ - \ 180 ^\circ C]{Conc.\ H_2SO_4}\ X\ \xrightarrow{Br_2}\ Y\)
\( Y\ \xrightarrow[2.\ NaNH_2]{1.\ Alc.\ KOH}\ Z\)

The final product Z is:

1.		2.
3.		4.	\(CH_3-C\equiv CH\)

Ethyl propanoate on reduction with LiAlH₄ yields:

1. Methanol

2. Ethanol and Propanol

3. Propane

4. Mixture of ethanol and methanol

Phenol does not react with: 

1. Na₂CO₃                                 

2. NaOH

3. NaHCO₃                                 

4. KOH