The best reactants for the formation of following product,

When the rate of formation of reactants is equal to the rate of formation of products, this is known as,

When the rate of formation of reactants is equal to the rate of formation of products, this is known as,

When the rate of formation of reactants is equal to the rate of formation of products, this is known as ,

Assertion :- Every collision among reactant molecules is not responsible for the formation of products. Reason :- Only an activated molecule with proper orientation can give rise to the formation of product.

The configurations of the reactant and the product in the following reaction, respectively, are