The value of C–O–C angle in ether molecule is:

1. 180$°$                                     

2. 150$°$ 

3. 90$°$                                       

4. 110$°$

Proof spirit contains about:

1. 48% alcohol by mass

2. 10% alcohol by mass

3. 5% alcohol by mass

4. 90% alcohol by mass

Glycerol on oxidation with dil. HNO₃ gives:

1. Tartronic acid                               

2. Mesoxalic acid

3. Oxalic acid                                   

4. Glyceric acid

Phenol and benzoic acid can be distinguished by:

1. Aqueous NaHCO₃                           

2. Aqueous NaNO₃

3. Aqueous NaOH                               

4. Conc. 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

The decreasing order of boiling points of $1°$,$2°$,$3°$ alcohol is:

1. $1°$>$2°$>$3°$                             

2. $3°$>$2°$>$1°$

3. $2°$>$1°$>$3°$                             

4. None of the above

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

How many isomers of C₅H₁₁OH will be primary alcohols?

1. 5

2. 4

3. 2

4. 3

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

The ionisation constant of phenol is higher than that of ethanol because-               

1. Phenoxide ion is bulkier than ethoxide

2. Phenoxide ion is stronger base than ethoxide

3. Phenoxide ion is stabilised through delocalisation

4. Phenoxide ion is less stable than ethoxide