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

The general molecular formula, which represents the homologous series of alkanols is      

1. C_nH_2nO₂        

2. C_nH_2nO

3. C_nH_2n+1O       

4. C_nH_2n+2O

$\mathrm{R}-\mathrm{COOH}\to {\mathrm{RCH}}_2\mathrm{OH}$. This reduction cannot be done  by:

1. ${\mathrm{NaBH}}_4$ 

2. Na + alcohol

3. ${\mathrm{LiAlH}}_4$

4. All of the above

What mass of isobutylene is obtained from 37 g of tertiary butyl alcohol by heating with 20% H₂SO₄ at 363 K, if the yield is 65%?

1. 16 g

2. 18.2 g

3. 20 g

4. 22 g

Which of the following reaction is used for preparation of glycol industrially?

1. 

2. 

3. 

4. none of the above

How many primary alcohol isomers can be formed with the molecular formula \(\text{C}_5\text{H}_{11}\text{OH}\)?

The solubility of phenol in water is lower. This can be attributed to:

1. Non-polar nature of phenol

2. Acidic nature of -OH group

3. Non-polar hydrocarbon part in phenol

4. None of the above

The decreasing order of boiling points of \(1^\circ\), \(2^\circ\), and \(3^\circ\) alcohol is-

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

The boiling points of thio-ethers are .... than those of ether.

1. lesser                                   

2. equal

3. higher                                   

4. none of these

The most effective reagent used to converts but-2-enal to but-2-enol is-

1. KMnO₄

2. NaBH₄

3. H₂/Pt

4. K₂Cr₂O₇/H₂SO₄