Assertion :Iodoform gives precipitate with $A g N O_{3}$ on heating while $C H C l_{3}$ does not. Reason: $C - I$ bond being less stable than $C - C l$ bond and thus on heating heterolytic cleavage of $C - I$ form $I$ which gives yellow precipitate with $A g N O_{3}$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Iodoform gives precipitate with $A g N O_{3}$ on heating while $C H C l_{3}$ does not. C-I bond being less stable than $C - C l$ bond and thus on heating heterolytic cleavage of $C - I$ form $I$ which gives yellow precipitate of $A g I$ with $A g N O_{3}$ There is no cleavage of $C - C l$ bond and hence no ppt formed. Thus both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Similar questions

Q. Read the assertion and reason carefully to mark the correct option out of the options given below:
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
(c) If assertion is true but reason is false.
(d) If assertion is false but reason is true.
Assertion: The major products formed by heating

C_{6} H_{5} C H_{2} O C H_{3}

with HI are

C_{6} H_{5} C H

, I and

C H_{3} O H .

Reason : Benzyl cation is more stable than methyl cation.

Assertion

Lithium sulphate does not form alums.

Reason

$L i^{+}$ is too small to form a stable lattice required for double-salt/alum formation.

Assertion (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Boiling points of alcohols and ethers are high.
Reason (R) They can form intermolecular hydrogen-bonding.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. $H N O_{3} a n d H_{2} S O_{4}$ mixture.
Reason (R) - OH group in phenol is o-,p-directing.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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Assertion :Iodoform gives precipitate with AgNO3 on heating while CHCl3 does not. Reason: C−I bond being less stable than C−Cl bond and thus on heating heterolytic cleavage of C−I form I which gives yellow precipitate with AgNO3.

Assertion :Iodoform gives precipitate with $A g N O_{3}$ on heating while $C H C l_{3}$ does not. Reason: $C - I$ bond being less stable than $C - C l$ bond and thus on heating heterolytic cleavage of $C - I$ form $I$ which gives yellow precipitate with $A g N O_{3}$ .