JEE Main 20 July 2021 Shift 1 Solved Paper

Given below are two statements : One is labelled as Assertion A and other is labelled as Reason R.
Assertion A : The dihedral angles in H2O2 in gaseous phase is 90.2° and in solid phase is 111.5°.
Reason R : The change in dihedral angle in solid and gaseous phase is due to the difference in the intermolecular forces.
Choose the most appropriate answer from the options given below for A and R.