Chemistry Assessment Questions Class 12 Online Exam Quiz

Chemistry Assessment Questions Class 12 GK Quiz. Question and Answers related to Chemistry Assessment Questions Class 12. MCQ (Multiple Choice Questions with answers about Chemistry Assessment Questions Class 12

What is the major product formed when aniline reacts with bromine water at room temperature?

Options

A : 2-Bromoaniline

B : 4-Bromoanline

C : 2,6-Dibromoaniline

D : 2,4,6-Tribromoaniline

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A compound ‘P’ on treating with concentrated H2SO4 forms ‘R’. The product ‘R’ on heating at 460K forms a zwitter ionic compound. Identify P, R respectively.

Options

A : Aniline; anilinium hydrogensulphate

B : Aniline; sulphanilic acid

C : Anilinium hydrogensulphate; sulphanilic acid

D : Sulphanilic acid; anilinium hydrogensulphate

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What is the main product of the following reaction?

Options

A : Benzene diazonium chloride

B : Phenol

C : o-Nitrosoaniline

D : p-Nitrosoaniline

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Hinsberg’s reagent is _______

Options

A : benzenesulfonic acid

B : benzenesulphonyl chloride

C : p-toluenesulphonyl chloride

D : chlorosulphuric acid

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Which of the following reactions/tests does not help in the distinction between ethylamine and diethylamine?

Options

A : Carbylamine test

B : Hinsberg’s test

C : Reaction with HNO2

D : Reaction with CH3CH2Br

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Which of the following is not a final product of the reaction between propylamine and nitrous acid?

Options

A : CH3CH2CH2N2Cl

B : CH3CH2CH2OH

C : N2 gas

D : H2O

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Diethylamine reacts with nitrous acid in the cold to form _______

Options

A : diazonium salt

B : alcohol

C : imine

D : nitrosoamine

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Which of the following amines, on reaction with benzenesulphonyl chloride, will give a sulphonamide that is insoluble in alkali?

Options

A : Ethylamine

B : Ethylmethylamine

C : Trimethylamine

D : Aniline

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Which of the following amines will form a product that is soluble in KOH, on reaction with Hinsberg’s reagent?

Options

A : Isopropylamine

B : Diethylamine

C : N,N-Dimethylpropylamine

D : N,N-Dimethylaniline

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The activating effect of -NHCOCH3 group is ______ as compared to -NH2 group.

Options

A : less

B : same

C : more

D : very high

View Answer

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