Chhaya Chemistry Class 12

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Chhaya Chemistry Class 12. We covered all the Chhaya Chemistry Class 12 MCQs in this post for free so that you can practice well for the exam.

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Chhaya Chemistry Class 12 Objective for Students

4-Methyl pent-3-pen-2-one is the aldol condensation product of:

(A) Acetaldehyde

(B) Propanone

(C) Propionaldehyde

(D) Ethyl methyl ketone

Option b – Propanone

2-Methyl propan-1-ol is obtained by reacting formaldehyde with:

(A) Ethyl magnesium bromide

(B) n-Propyl magnesium bromide

(C) Isopropyl magnesium bromide

(D) Terbutyl magnesium bromide

Option c – Isopropyl magnesium bromide

Incorrect statement about the addition product of ethanal and sodium bisulphite is:

(A) They are water-soluble crystalline solids.

(B) They are hydrolyzed in aldehydes by dil. acids or alkali.

(C) They are water-insoluble liquids.

(D) They are sodium salts of hydroxy sulphonic acids.

Option c – They are water-insoluble liquids

Ethanal on reacting with ethyl alcohol in dry hydrochloric acid gas gives:

(A) Ketol

(B) Acetaldol

(C) Diethoxy ethane

(D) Diacetaldehyde alcohol

Option c – Diethoxy ethane

We covered all the chhaya chemistry class 12 mcqs above in this post for free so that you can practice and prepare well for the exam. Thank you.

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