Equilibrium

The number of  $\mathrm{C}=\mathrm{O}$ groups present in a tripeptide Asp - Glu - Lys is

The incorrect statement(s) among (a) - (d) regarding acid rain is (are):

(a) It can corrode water pipes.

(b) It can damage structures made up of stone.

(c) It cannot cause respiratory ailments in animals

(d) It is not harmful for trees

For the following assertion and reason, the correct option is
Assertion(A): When Cu(II) and sulphide ions are mixed they react together extremely quickly to give a solid
Reason(R): The equilibrium constant of Cu²?(aq) + S²?(aq) ? CuS(s) is high because the solubility product is low

A solution of two components containing n₁ moles of the 1st component and n₂ moles of the 2nd component is prepared. M₁ and M₂ are the molecular weights of component 1 and 2 respectively. If d is the density of the solution in gmL⁻¹, C₂ is the molarity and x₂ is the mole fraction of the 2nd component, then C₂ can be expressed as: