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

Which is an excellent antiseptic?

1. Phenol 

2. Benzyl alcohol

3. Benzaldehyde 

4. Acetic acid

The dehydration of neo-pentanol gives mainly-

1. 

2. 

3. 

4. Nne of the above

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.

Proof spirit contains about:

1. 48% alcohol by mass

2. 10% alcohol by mass

3. 5% alcohol by mass

4. 90% alcohol by mass