​In the fission reaction

The system with the largest internal pressure is

A compound consists of atoms A and B. Atoms of B form cubic close packing lattice and atoms of A occupy half of octahedral voids and half of tetrahedral voids. What is the molecular formula of the compound?

Entropy associated with a die with all its six faces having equal probability of being on top is (k_B : Boltzmann constant):

​$$\text{The characters of a reducible representation } \Gamma_R \text{ under the } C_{3h} \text{ point group are presented at the end of the character table below. The correct coefficients of the irreducible representations } A' \text{ and } A'' \text{ in the } \Gamma_R \text{ are}$$​

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The equivalent symmetry operations for $$S^4_6$$ and $$S_3^3$$ are, respectively,​

P and Q are isomers of cyclopentadiene dimer. A representative energy profile diagram of the dimerization is given below. The correct statement about the reaction under ambient conditions is

The major product formed in the following reaction is

The major product formed in the following reaction sequence is

The correct order of reactivity of the following olefins towards ozone is

The system with the largest internal pressure is