Assertion :Pyrolysis of alkanes requires very high temperatures. Reason: C-H bond is very strong.

If both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

If both assertion and reason are CORRECT, but reason is NOT THE CORRECT explanation of the assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If assertion is CORRECT, but reason is INCORRECT.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

If assertion is INCORRECT, but reason is CORRECT.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A If both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion.
Pyrolysis or thermal cracking takes place in presence of high temperature because C-C & C-H are strong $σ$ bonds.

Suggest Corrections

Similar questions

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.

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: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis.
Reason: Equation of the x-axis is y = 0

Choose the correct option.

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

Assertion :Pyrolysis of alkanes requires very high temperatures. Reason: C-H bond is very strong.

The correct option is A If both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion.Pyrolysis or thermal cracking takes place in presence of high temperature because C-C & C-H are strong σ bonds.

The correct option is A If both assertion and reason are CORRECT and reason is the CORRECT explanation of the assertion.
Pyrolysis or thermal cracking takes place in presence of high temperature because C-C & C-H are strong $σ$ bonds.