Assertion :Compound $C$ is $S O_{2}$ . Reason: $S O_{2}$ turns lime water milky.

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 incorrect but Reason is correct

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is incorrect but Reason is correct
$C u C O_{3} ⟶ C u O + C O_{2}$
Here,the compound $C$ is $C O_{2} ↑$ ,because on adding excess $C O_{2}$ to lime water it turns colourless.
But when $S O_{2}$ is added to lime water it turns milky but on excess $C O_{2}$ ,it remains unchanged.

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Similar questions

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

Assertion (A) All collision of reactant molecules lead to product formation.

Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

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Assertion :Compound C is SO2. Reason: SO2 turns lime water milky.

The correct option is C Assertion is incorrect but Reason is correctCuCO3⟶CuO+CO2Here,the compound C is CO2↑,because on adding excess CO2 to lime water it turns colourless.But when SO2 is added to lime water it turns milky but on excess CO2,it remains unchanged.

Assertion :Compound $C$ is $S O_{2}$ . Reason: $S O_{2}$ turns lime water milky.