The rate law for the reaction below is given by the expression k [A] [B]

A + B $$ \to $$ Product

If the concentration of B is increased from 0.1 to 0.3 mole, keeping the value of A at 0.1 mole, the rate constant will be :

The following statements concern elements in the periodic table. Which of the following is true ?

Extraction of copper by smelting uses silica as an additive to remove :

Identify the reaction which does not liberate hydrogen :