NEET Practice Questions (MCQs) with Answers & Solutions

A liquid was mixed with ethanol and a drop of concentrated H₂SO₄ was added. A compound with a fruity smell was formed. The liquid was:

Carbolic acid is the name used for:

When phenol is reacted with chloroform and an alkali like NaOH, the compound formed is salicylaldehyde. If we use pyrene in place of chloroform the product obtained is:

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

In the reaction, Phenol $\underset{\mathrm{DIstillation}}{\overset{\mathrm{Zn}}{\to }}$(A) $\underset{\mathrm{Conc}. {\mathrm{HNO}}_3 \mathrm{at} 60°\mathrm{C}}{\overset{\mathrm{Conc}. {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}$(B) $\underset{\mathrm{NaOH}\left(\mathrm{aq}\right)}{\overset{\mathrm{Zn}}{\to }}$(C)

The compounds (A),(B) and (C) are of the following:

Resorcinol and conc. H₂SO₄ in presence of phthalic anhydride produce a compound which is:

An organic compound C₇H₈O is neither soluble in NaOH nor gives blue colour with FeCl₃, is:

Which of the following reagents may be used to distinguish between phenol and benzoic acid?

An unknown alcohol is treated with the “Lucas reagent” to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts the fastest and by what mechanism:

Propene,CH₃-CH=CH₂ can be converted into 1-propanol by oxidation.Which set of reagents among the following is ideal to effect the conversion?