Ether fire can be extinguished by:

(1) sand

(2) pyrene

(3) CO₂

(4) all of these

Identify Z in the following series,
CH₃-CH₂-CH₂OH $\underset{160 -180°\mathrm{C}}{\overset{\mathrm{Conc}. {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}\mathrm{X}\stackrel{{\mathrm{Br}}_2}{\to }\mathrm{Y}\underset{2. {\mathrm{NaNH}}_2}{\overset{1. \mathrm{Alc}. \mathrm{KOH}}{\to }}\mathrm{Z}$
1. ${\mathrm{CH}}_3—\mathrm{CH}—{\mathrm{CH}}_2$
$| |$
${\mathrm{NH}}_2 {\mathrm{NH}}_2$

2. ${\mathrm{CH}}_3—\mathrm{CH}—{\mathrm{CH}}_2$
$| |$
$\mathrm{OH} \mathrm{OH}$

3. ${\mathrm{CH}}_3—\mathrm{C}={\mathrm{CH}}_2$
$|$
$\mathrm{OH}$

4. ${\mathrm{CH}}_3—\mathrm{C}\equiv \mathrm{CH}$

Purity of ether before using it as anaesthetic agent is tested by :-

1. KI + starch

2. CuSO₄

3. H₂SO₄

4. none of these

The explosive nitroglycerine is:

(1) a soap

(2) a salt

(3) an ester

(4) a complex compound

When an ether is treated with P₂S₅ we get:

(1) thio-alcohol

(2) thio-ester

(3) thio-ether

(4) thio-aldehyde

Which enzyme catalyzes the conversion of glucose to ethanol?

1. Zymase

2. Diastase

3. Maltase

4. Invertase

Denatured spirit is mainly used as a:

(1) good fuel

(2) drug

(3) solvent in preparing varnishes

(4) material in the preparation of oil

The products of combustion of an aliphatic thiol (RSH) at 298K are:-

(1) CO₂(l), H₂O(g)andSO₂(g)

(2) CO₂(g), H₂O(g)andSO₂(g)

(3) CO₂(l), H₂O(l)andSO₂(g)

(4) CO₂(g), H₂O(l)andSO₂(l)

Carbolic acid is the name used for:

1. Opium 

2. Phenol

3. Chloroform

4. H₂CO₃

When phenol is treated with excess bromine water, it gives:

(1) m-bromophenol

(2) o- and p-bromophenol

(3) 2,4-dibromophenol

(4) 2,4,6-tribromophenol