The precise formulation of Lucas reagent consists of :

1. conc. HCl and anhydrous ZnCl₂

2. conc. HNO₃ and anhydrous ZnCl₂

3. conc. HCl and hydrous ZnCl₂

4. conc. HNO₃ and hydrous ZnCl₂

Identify the correct decreasing order of boiling points of 1°, 2° and 3° alcohols.

1. \(1^\circ\)> \(2^\circ\)> \(3^\circ\)                            

2. \(3^\circ\)> \(2^\circ\)> \(1^\circ\)

3. \(2^\circ\)$$ $$> \(1^\circ\)$$ $$> \(3^\circ\)                             

4. None of the above

An organic compound with the molecular formula C₇H₈O dissolves in NaOH and produces a blue color with FeCl₃. Identify the compound.

Which one of the following on oxidation gives a ketone?                   

1. Primary alcohol                      2. Secondary alcohol

3. Tertiary alcohol                      4. All of these

In the following sequence of reactions, the product (C) is: 

CH₃CHO$\underset{\mathrm{Pd}}{\overset{{\mathrm{H}}_2}{\to }}$ (A) $\stackrel{\mathrm{Na}}{\to }$ (B) $\stackrel{{\mathrm{CH}}_3\mathrm{I}}{\to }$  (C)

1. Alcohol.                                 
2. Ether.
3. Alkene.                                 
4. None of the above.

The formula of phenoxy benzene is :

1. C₆H₅C₆H₅                             

2. C₆H₅-O-C₆H₅

3. C₆H₅-O-C₆H₆                         

4. None of the above

Ether and benzene can be separated by:-

1. Filtration

2. Distillation

3. Crystallization

4. Sublimation

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

1. HCHO                       

2. H₂O

3. CO₂                         

4. CH₃CHO

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

Glycol condenses with ketones to give:

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