MCQ ON POLY NUCLEAR HYDROCARBON (PAH)(PHENANTHRENE,ANTHRACENE,NAPHTHALENE)AND ITS DERIVATIVES.
1.Naphthalene is the largest single component of which coal-tar fraction? a) Light oil b) Middle oil c) Heavy oil d) Anthracene oil Answer: b) Middle oil Explanation: Naphthalene is obtained mainly by cooling the middle oil fraction (160–230°C) during coal-tar distillation, where it crystallizes out. 2.Which position does naphthalene most readily undergo electrophilic substitution? […]
MCQ PRACTICE SET ON PHENOL
Which of the following is the most common industrial method for the preparation of phenol? Hydrolysis of chlorobenzene Oxidation of cumene Decarboxylation of salicylic acid Hydrogenation of benzene What is the name of the reaction that involves the reaction of phenol with chloroform in the presence of sodium hydroxide? Kolbe’s reaction Reimer-Tiemann reaction Wurtz reaction […]
MCQ ON AROMATIC HYDROCARBON(BENZENE)
Molecular formula of benzene is: a) C6H14 b) C6H12 c) C6H6 d) C5H6 Answer: c Which ratio of carbon:hydrogen led to benzene’s unsaturation prediction? a) 1:1 b) 2:1 c) 1:1.33 d) 1:1.5 Answer: c Benzene on catalytic hydrogenation gives: a) Cyclohexane b) Cyclohexene c) Cyclopentane d) Cyclohexadiene Answer: a The number of π-electrons in […]
MCQ ON PHARMACEUTICAL ANALYSIS
Pharmaceutical analysis primarily involves: a) Designing drug delivery systems b) Detection, identification and quantification of compounds c) Performing clinical trials d) Manufacturing processes Answer: b Which technique is mainly qualitative? a) Volumetric titration b) Gravimetry c) Spot tests and colour tests d) Potentiometry Answer: c Which technique is mainly quantitative? a) Thin layer […]
MCQ ON CYCLOALKANE
Which of the following is the general formula of cycloalkanes? a) CnH2n+2 b) CnH2n c) CnH2n-2 d) CnHn Answer: b) CnH2n What is the first member of the cycloalkane series? a) Cyclobutane b) Cyclopropane c) Cyclopentane d) Cyclohexane Answer: b) Cyclopropane Cycloalkanes are also known as: a) Aromatic compounds b) Cycloparaffins c) Cycloalkenes d) Alkynes […]