NEET

Absolute alcohol is

100% pure ethanol
95% alcohol + 5% H₂O
ethanol + water + phenol
95% ethanol + 5% methanol

Phenol is more readily soluble in

NaOH solution
dil. HCI
both NaOH and HCl
NaHCO₃

Solution

Molecular formula of amyl alcohol is

C₇H₁₄O
C₆H₁₃O
C₅H₁₂O
C₅H₁₀O

The structural formula of cyclohexanol is

Solution

Methylated spirit is

methanol
methanol + ethanol
methanoic acid
methanamide

Solution

5-10 % methanol and remaing ethanol is called methylated spirit. It is also known as denatured alcohol because it is unfit for drinking.

Dehydration of alcohol is an example of

Redox reaction
Elimination reaction
Substitution reaction
Addition reaction

Solution

Which of the following are isomers ?

Methyl alcohol and dimethyl ether
Ethyl alcohol and dimethyl ether
Acetone and acetaldehyde
Propionic acid and propanone

Solution

C₂H₅OH and CH₃-O-CH₃ are isomers.

The alcohol manufactured from water gas is

ethanol
methanol
isobutanol
butanol

Solution

Glycerol on oxidation with bismuth nitrate produces

oxalic acid
glyceric acid
glyoxalic acid
meso oxalic acid

Solution

Lucas reagent is

conc. HCl and anhydrous ZnCl₂
conc. HNO₃ and hydrous ZnCl₂
conc. HCl and hydrous ZnCl₂
conc. HNO₂ and anhydrous ZnCl₂

Solution

Lucas reagent is conc. HCl + anhyd. ZnCl₂.

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