Chemistry Question Bank

CO gas CO insolution This equilibrium is governed by

The rate of dissolution of sugar is equal is equal to rate of crystallization of sugar can be represented as

When no more solute can be dissolved in solution at a given temperature is known as

The solid-vapour equilibrium can be represented as I. I2 (solid) I2 (vapour) II. Camphor (solid) Camphor (vapour) III. NH4Cl (solid) NH4Cl (vapour) Point out the correct option(s).

Which of the following statement is correct?

For any pure liquid at 1 atm pressure (1.013 bar), the temperature at which the liquid and vapours are at equilibrium is called normal …(X)… of the liquid. Here, (X) refers to

H O l H O vap. Point out the correct statement for this equilibrium

For any pure substance at atmospheric pressure, the temperature at which the solid and liquid phases are at equilibrium is called the normal …(X)… or normal …(Y)… of the substance.

Ice and water kept in a perfectly insulated thermos flask (no exchange of heat between its contents and the surroundings) at 273 K and the atmospheric pressure are in equilibrium state and the system shows

Solid Liquid Liquid Gas Solid Gas The above examples are called

Equilibrium involving ions in aqueous solutions is called as

The stage of the system is the dynamic equilibrium in which

Equilibrium can be established for

Purification of camphor involves

H O l H O vap. In this equation, the double half arrows indicate that

Which of the following is correct for equilibrium state?

Equilibria involving O2 molecules and the protein heamoglobin play a crucial role

Chemical equilibria are important in numerous … (X) … and …. (Y) … processes. Here, (X) and (Y) refer to

In the reaction A(g) + 2B(g) C(g) + Q kJ, greater product will be obtained or the forward reaction is favoured by

According to Le-Chatelier principle, if heat is given to solid-liquid system, then

The reaction A + B C + D +heat has reached equilibrium. The reaction may be made to proceed forward by

In the following reversible reaction 2SO2 + O2 2SO3 + Q Cal Most suitable condition for the higher production of SO3 is

Which of the following reactions proceed at low pressure

CaCO CaO CO reaction in lime kiln goes to completion because (AFMC 2005)

In the reaction, A(s) B(g) heat 2C(s) 2D(g) at equilibrium, pressure of B is doubled to re- establish the equilibrium. The factor by which concentration of D is changed, is (PMT2005) (a)