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

1. 

2. 

3. 

4. none of the above

The number of primary alcohol isomers of C₅H₁₁OH is -

Phenol is less soluble in water. It is due to-

1. Non-polar nature of phenol

2. Acidic nature of -OH group

3. Non-polar hydrocarbon part in it

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

23g of sodium react with CH₃OH to give-

1. 1 mole of O₂                           

2. 1/2 mole of H₂

3. 1 mole of H₂                           

4. None of the above

Phenol and benzoic acid can be distinguished by:

1. Aqueous NaHCO₃                           

2. Aqueous NaNO₃

3. Aqueous NaOH                               

4. Conc. H₂SO₄

Glycerol on oxidation with conc HNO₃ gives:

1. tartronic acid                               

2. mesoxalic acid

3. oxalic acid                                   

4. glyceric acid

Ethyl Chloride is converted into diethyl ether by- 

1. Wurtz synthesis

2. Grignard reaction

3. Perkin's reaction 

4. Williamson's synthesis