Options are:

1. Activation enthalpy to form C is 5kJ mol^-1 less than to form D.
2. D is kinetically stable product.
3. C is thermodynamically stable product.
4. Formation of A and B from C has highest enthalpy of activation.

This question was given in JEE Main April 2019. The correct option given in the official answer key is 1. But I have a doubt if it’s not correct. Can you confirm it please?

Question

Options are:

1. Activation enthalpy to form C is 5kJ mol^-1 less than to form D.
2. D is kinetically stable product.
3. C is thermodynamically stable product.
4. Formation of A and B from C has highest enthalpy of activation.

This question was given in JEE Main April 2019. The correct option given in the official answer key is 1. But I have a doubt if it’s not correct. Can you confirm it please?

Saurabh Koranglekar · Answer

Vikas TU · Answer

Dear student Activation enthalpy for C=20−5=15 kJ/mol Activation enthalpy for D=15−5=10 kJ/mol. so correct option is C. Good Luck Cheers

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