Participation of __________ is involved in the occurrence of a chemical reaction.

(i)Participation involves more than the formal sharing of decisions. (ii)through anticipation , individuals . or organizations consider trends and make plans , shielding institutions from trauma of learning by shock. (iii) Innovative learning involves both anticipation and participation . (iv) It is an attitude characterized by cooperation. dialogue and empathy.

A

(ii) + (iii) + (i) + (iv)

B

(i) + (ii) + (iv) + (iii)

C

(iv) + (i) + (iii) + (ii)

D

(iii) + (ii) + (i) + (iv)

The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are

A

Always irreversible

B

Insensitive to temperature changes

C

Mostly irreversible

D

Highly temperature sensitive

Chemical kinetics can predict the __________ of a chemical reaction.

A

Rate

B

Feasibility

C

Both A & B

D

Neither A nor B

'Absorption with chemical reaction' is involved in the removal of

A

Carbon dioxide from gaseous stream using alkaline solution

B

Benzol from coke oven gas using solar oil/wash oil

C

Ammonia from coke oven gas using refrigerated water

D

Tar from coke oven gas in primary gas coolers using chilled water

A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

A

Less than

B

Equal to

C

More than

D

Equal to or more than

A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.

A

Less than

B

Equal to

C

More than

D

Equal to or more than

A catalyst in a chemical reaction __________ free energy change in the reaction.

A

Increases

B

Decreases

C

Either A or B; depends on the type of catalyst

D

Neither A nor B

Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction.

A

Zero order

B

Third order

C

Consecutive

D

None of these

Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is

A

0

B

1

C

∞

D

None of these

Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

A

Proportional to

B

Independent of

C

Inversely proportional to

D

Proportional to the square of

Participation of __________ is involved in the occurrence of a chemical reaction.

Related Questions