45. Assertion:In dichromate ion, Size of Cr atom is nearly Tl Reason: All Cr-O bond length in dichromate ion are equal. A)A and R are correct, and R is the correct explaination of A b)A and R are correct but Ris not a correct explaination of A c)A is correct but R is not correct d)Both A and R are not correct

Open in App

Solution

Suggest Corrections

Similar questions

In this question, an Assertion (A) is followed by a corresponding Reason (R). Choose the appropriate option.

Assertion (A): In $C s C l$ crystal, the coordination number of $C s^{\oplus}$ ion is 8.

Reason (R): $C l^{⊖}$ ions in $C s C l$ adopt bcc type of packing.

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) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

Assertion (A) Most of the synthetic polymers are not biodegradable.

Reason (R) Polymerisation process induces toxic character in organic molecules.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

(b) Assertion and Reason both are correct statement and Reason explains the Assertion.

(d) Assertion is correct statement and Reason is wrong statement.

(e) Assertion is wrong statement and reason is correct statement.

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.

Join BYJU'S Learning Program