Assertion :The coefficient of restitution for any collision lies between zero and 1. Reason: This is due to the reason that no collision is perfectly elastic or perfectly inelastic.

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 D Assertion is incorrect but Reason is correct
The coefficient of restitution for any collision 'generally' lies between zero and one. However, there are cases when it can be less than zero implying the objects passed through one another without fully engaging resulting in an an incomplete transfer of momentum [e.g. a bullet passing through a target]. Also in some cases it can exceed one representing a collision in which energy is released also known as superelastic collisions.

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Q. Assertion: The compressibility factor for

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and

H e

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

Reason: The compressibility factor for

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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.

(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) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

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Reason:

CaO

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{CaCO}_{3}

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

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