Class 10 Chemistry Chapter 1 Kerala Syllabus. We covered all the Class 10 Chemistry Chapter 1 Kerala Syllabus MCQs in this post for free so that you can practice well for the exam.
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Class 10 Chemistry Chapter 1 Kerala Syllabus Objective for Students
During the reaction between propionaldehyde and ammonical silver nitrate reagent:
(A) Ammonical silver nitrate is oxidized
(B) Propionaldehydes are reduced.
(C) Ammonical silver nitrate is reduced
(D) Fehling solution acts as a reducing agent.
Option c – Ammonical silver nitrate is reduced
Find out the incorrect statement about carboxylic acids:
(A) Aromatic carboxylic acids are highly soluble in water.
(B) Lower members of carboxylic acids are soluble in water
(C) Ethanoic acid in a solid state below 289.5 K is called glacial acetic acid.
(D) Lower members are colorless liquids having an irritating odor.
Option a – Aromatic carboxylic acids are highly soluble in water
Correct statement about alkanals and alkanones is:
(A) Aromatic alkanals are less reactive than aliphatic alkanals.
(B) As the steric effect of alkyl groups increases, the reactivity of alkanals and alkanones increases.
(C) +I effect of the alkyl group linked to the carbonyl carbon increases their reactivity.
(D) Carbonyl carbon in aromatic alkanals and alkanones is more electron-deficient due to the electron-attracting resonance effect.
Option a – Aromatic alkanals are less reactive than aliphatic alkanals
Acetic acid on heating with ammonia produces:
(A) Ethanamide
(B) Ethyl amine
(C) Ethyl diazonium chloride
(D) Ethyl acetate
Option a – Ethanamide
Ethanoyl chloride on reacting with ammonia produces:
(A) Ethanamine
(B) Acetamide
(C) Methanamide
(D) Propanamide
Option b – Acetamide
Phthalimide is prepared by strong heating ammonia with:
(A) Benzene-1,2-dicarboxylic acid
(B) o-toluic acid
(C) Phthaldehyde
(D) Phthalic anhydride
Option a – Benzene-1,2-dicarboxylic acid
Propane is prepared by decarboxylation of:
(A) Propionic acid
(B) Potassium propionate
(C) Butyric acid
(D) Sodium butyrate
Option d – Sodium butyrate
Incorrect statement about the solubility of alkanals and alkanones is:
(A) They are insoluble in organic solvents like benzene, ether, alcohol, etc.
(B) Lower alkanals and alkanones form hydrogen bonds with water.
(C) Their solubility in water decreases with an increase in carbon atoms.
(D) Lower aldehydes and ketones are soluble in water.
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