Assertion :Red phosphorus is less reactive than yellow phosphorus. Reason: Red phosphorus is insoluble in $C S_{2}$ whereas white phosphorus is soluble.

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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Assertion is incorrect but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Red phosphorus is less reactive than yellow phosphorus as red phosphorus is stable form of phosphorus.
Red phosphorus is insoluble in $C S_{2}$ whereas white phosphorus is soluble.
The correct option is (B)

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Similar questions

Q. ASSERTION:

Δ_{f} H^{o}

for white phosphorus has been taken to be zero, whereas black phosphorus is the most stable allotrope of phosphorus and this is the only exception.

REASON:
The reference standard state of white phosphorus is taken despite the fact that this form is not the most stable allotrope but simply the most reproducible form of phosphorus.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

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

Reason: The compressibility factor for

H_{2}

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H e

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Q. Assertion
If BOD level of water in reservoir is less than 5 ppm it is not polluted.

Reason
High biological oxygen demand means low activity of bacteria in water.

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

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Reason:

CaO

formed by decomposition of

{CaCO}_{3}

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{SiO}_{2}

to form slag.

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.

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Assertion :Red phosphorus is less reactive than yellow phosphorus. Reason: Red phosphorus is insoluble in CS2 whereas white phosphorus is soluble.

Assertion :Red phosphorus is less reactive than yellow phosphorus. Reason: Red phosphorus is insoluble in $C S_{2}$ whereas white phosphorus is soluble.