General Organic Chemistry

Assertion : Hydroquinone is more acidic than resorcinol. Reason : $-\mathrm{OH}$ group shows $+I$-effect.

Assertion: Phenol is more acidic than m-methoxyphenol. Reason : $-\mathrm{OCH}_3$ shows $+I$-effect.

For the following carboxylic acids, (i) $\mathrm{F}_3 \mathrm{CCOOH}$ (ii) $\mathrm{CH}_3 \mathrm{COOH}$ (iii) $\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}$ (iv) $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COOH}$ The correct order…

Assertion : Phenol reacts with $\mathrm{CH}_3 \mathrm{I}$ in presence of $\mathrm{NaOH}$ to form methoxybenzene. Reason : Phenoxide is better nucleophile than phenol.

Assertion : $\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$ is less basic than $\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$ in aqueous solution. Reason : Hyperconjugation in $\left(\mathrm{CH}_3\right)_2 \mathrm{NH}$ is more…

Which of the following molecules, in pure form, is (are) unstable at room temperature?

Which of the following statements is incorrect for paper chromatography?

The increasing order of $\mathrm{p} K_a$ values for the following carboxylic acids is (1) acetic acid (2) formic acid (3) benzoic acid (4) trichloroacetic acid

Assertion : Glycerol is purified by distillation under reduced pressure. Reason : Organic compounds in liquid state are purified by distillation.

Assertion : $N, N$-Diethylethanamine is more basic than $N, N$-dimethylmethanamine. Reason : $+I$-effect of ethyl is more than methyl.

Assertion : Benzyl amine is less basic than ethyl amine. Reason : Benzene shows $+I$-effect.

Assertion : Thiophene present in commercial benzene as an impurity can be removed by shaking the mixture with cold concentrated $\mathrm{H}_2 \mathrm{SO}_4$. Reason : Thiophene is a heterocyclic aromatic compound.