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

1.	5	2.	4
3.	2	4.	3

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

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

By which reaction, ethyl chloride can be converted into diethyl ether?

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