Skip to main content
Back to ALCOHOLS & PHENOLS & ETHERS

NEET UG CHEMISTRY MCQ: ALCOHOLS & PHENOLS & ETHERS

1 Hard
1 of 1
Analyzing +4 | -1
Consider the following compounds.

(A) Phenol

(B) Propyne

(C) Benzene sulphonic acid

(D) Benzoic acid

(E) Cyclopentadiene

(F) Ethane

(G) Picric acid

(H) 4-Nitro Cyclohexanol

If (X)(\mathrm{X}) is the total number of compounds which evolve H2\mathrm{H}_2 gas with Na\mathrm{Na} metal and (Y)(\mathrm{Y}) is the total number of compounds which evolve CO2\mathrm{CO}_2 gas with NaHCO3\mathrm{NaHCO}_3. Then find the value of (X−Y)(\mathrm{X}-\mathrm{Y}).
View answer and explanation
Correct option: A
4
The correct answer is A (4) because Phenol, Propyne, Benzoic acid, and Cyclopentadiene evolve H2 gas with Na metal, while only Benzoic acid reacts with NaHCO3 to evolve CO2 gas. Therefore, X = 4 and Y = 1, so X - Y = 4.

More Questions from ALCOHOLS & PHENOLS & ETHERS

Practice All Chapter MCQs →
Ethers are made free from peroxide linkage on distilling impure sample with: The product 'B' in the following reaction is
CH3CH2OH→PCCA→(ii) H2O/H+(i) HCNB{\text{C}}{{\text{H}}_3}{\text{C}}{{\text{H}}_2}{\text{OH}}\xrightarrow{{{\text{PCC}}}}{\text{A}}\xrightarrow[{\left( {{\text{ii}}} \right){\text{ }}{{\text{H}}_2}{\text{O/}}{{\text{H}}^ + }}]{{\left( {\text{i}} \right){\text{ HCN}}}}{\text{B}} Fenton’s reagent is: Assertion:- Isopropyl benzene reacts with O2\mathrm{O}_2 and acid gives phenol.

Reason:- Initially isopropyl benzene converts into 2-phenyl propan-2-ol. When an ether is treated with P2S5{\mathrm{P}_2}{\mathrm{S}_5} we get: Physical properties of:
Type at least 2 characters or jump directly:
🩺 NEET MCQs 🔬 JEE MCQs 🎯 JEE College Predictor Study guides 📊 Dashboard
🔓

Save your learning progress

Sign in with a free account to save your practice answers and quiz results, then return to them when you revise.

Continue with Free Account →