Assertion`:-` In Karate, a brick is broken with a bare hand.
Reason`:-` In this process the impulse is sharp.

Assertion: Physical absorption of molecular takes place on surface only. Reason: In this process, the bonds of the absorbed molecules are not broken.

Assertion: Physisorption of molecules occures on surface only. Reason: in this process, the bonds of the adsorbed molecules are broken.

Assertion: Physisorption of molecules occures on surface only. Reason: in this process, the bonds of the adsorbed molecules are broken.

Assertion: For an ideal gas in a cyclic process and in an isothermal process change in internal energy is zero. Reason: In both processes there is no change in temperature.

Assertion: For an ideal gas in a cyclic process and in an isothermal process change in internal energy is zero. Reason: In both processes there is no change in temperature.

Assertion : In an isolated system the entropy increases. Reason : The processes in an isolated system are adiabatic.

Assertion : Secondary succession takes place in recently denuded area. Reason : It is caused due to baring of an area.

Assertion : Secondary succession takes place in recently denuded area. Reason : It is caused due to baring of an area.

Assertion : LUBB (First Sound) is of shorter duration and sharp sound. Reason : It is created by the closure of the semiluar valves.