The toxicity order for CH₃OH, C₂H₅OH and C₃H₇OH is:

1. C₂H₅OH < CH₃OH < C₃H₇OH

2. C₃H₇OH < C₂H₅OH < CH₃OH

3. C₂H₅OH < C₃H₇OH < CH₃OH 

4. CH₃OH < C₂H₅OH < C₃H₇OH

The organic compound present in the tincture of iodine is:

1. Alcohol

2. CCI₄

3. Acetone

4. CS₂

The cleavage of an aryl-alkyl ether with hydrogen halide will give:

(1) a molecule each of an alkyl halide and water

(2) a molecule each of an aryl halide and water

(3) a molecule each of an alkyl halide, aryl halide and water

(4) a molecule each of phenol and an alkyl halide

Wood spirit is:

1. CH₃OH

2. C₂H₅OH

3. CH₃CH₂CH₂OH

4. None of the above

Ether fire can be extinguished by:

(1) sand

(2) pyrene

(3) CO₂

(4) all of these

Phenol is:

1. a stronger base than NH₃

2. an acid stronger than carbonic acid

3. an acid weaker than carbonic acid

4. None of the above

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 reaction;

 RCOOH $\stackrel{{\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH} + \mathrm{Na}}{\to }$RCH₂OH is called:

(1) Corey House reaction

(2) Bonveault-Blanc reaction

(3) Clemmensen reduction

(4) none of the above

C₂H₅OH cannot be dried by anhydrous CaCl_2, because:

(1) C₂H₅OH is soluble in water

(2) explosion takes place

(3) C₂H₂OH reacts with CaCl₂

(4) none of the above