Problem 1
In Carius tube, the compound \(\mathrm{ClCH}_{2} \mathrm{COOH}\) was heated with fuming \(\mathrm{HNO}_{3}\) and \(\mathrm{AgNO}_{3}\). After filtration and washing, a white precipitate was formed. The precipitate is: (a) \(\mathrm{Ag}_{2} \mathrm{SO}_{4}\) (b) \(\mathrm{AgNO}_{3}\) (c) \(\mathrm{AgCl}\) (d) \(\mathrm{ClCH}_{2} \mathrm{COOAg}\)
Problem 1
The IUPAC name of \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COCl}\) is (a) Benzoyl chloride (b) Benzene chloroketone (c) Benzene carbonyl chloride (d) Chlorophenyl ketone
Problem 1
In \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\), the bond that undergoes heterolytic cleavage most readily is: (a) \(\mathrm{O}-\mathrm{H}\) (b) \(\mathrm{C}-\mathrm{H}\) (c) \(\mathrm{C}-\mathrm{O}\) (d) \(\mathrm{C}-\mathrm{C}\)
Problem 2
The most satisfactory method to separate sugaris to use: (a) Sublimation (b) Fractional crystallization (c) Benedict's reagent (d) Chromatography
Problem 2
The four \(\mathrm{C}-\mathrm{H}\) bonds of methane are broken one at a time. The cleavage of which of the following bonds has the minimum bond dissociation energy? (a) \(\mathrm{C}-\mathrm{H}\) (b) \(\mathrm{CH}-\mathrm{H}\) (c) \(\mathrm{CH}_{2}-\mathrm{H}\) (d) \(\mathrm{CH}_{3}-\mathrm{H}\)
Problem 2
In the reaction, \(\mathrm{CH}_{3} \mathrm{CHO}+\mathrm{HCN} \longrightarrow \mathrm{CH}_{3} \mathrm{CH}(\mathrm{OH}) \mathrm{CN}\) A chiral centre is produced. This product would be (a) Racemic mixture (b) Meso compound (c) Dextrorotatory (d) Laevorotatory
Problem 3
Optical activity is measured by (a) Refractometer (b) Tracer technique (c) Spectrograph (d) Polarimeter
Problem 3
Which one of the following behaves both as a nucleophile and as an electrophile? (a) \(\mathrm{H}_{3} \mathrm{C}-\mathrm{NH}_{2}\) (b) \(\mathrm{H}_{3} \mathrm{C}-\mathrm{OH}\) (c) \(\mathrm{H}_{3} \mathrm{C}-\mathrm{C} \equiv \mathrm{N}\) (d) \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{ONa}\)
Problem 4
The compound having only primary hydrogen atoms is (a) Isobutene (b) 2,3 -dimethylbutene (c) Cyclohexane (d) Propyne
Problem 4
Pick the strongest nucleophile. (a) : \(\mathrm{CH}_{3}\) (b) \(\mathrm{NH}_{2}\) (c) \(\mathrm{H}-\mathrm{C} \equiv \mathrm{C}:\) (d) \(\mathrm{H}^{\ominus{\ominus}}\)
