For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases ______________ times?

A. 8
B. 12
C. 16
D. 32

The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a ‘tanks in series model’ comprising of ‘m’ tanks is equal to ___________________?

A. m
B. 1/m
C. √m
D. m2

An imbalanced chemical reaction equation is against the law of________________?

A. Multiple proportion
B. Conservation of mass
C. Constant proportion
D. None of these

The catalytic activity of enzymes is due to their capacity to lower the ______________ energy?

A. Activation
B. Potential
C. Kinetic
D. None of these

Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the ___________________?

A. Activation energy
B. Equilibrium constant
C. Heat of reaction
D. None of these

For any reaction, we may write conversion as a function of______________________?

A. Time
B. Temperature
C. Concentration
D. All A., B. & C.

Enzymes are destroyed, when the_______________?

A. Temperature is very high
B. Reactant’s concentration is very high
C. Reactant’s concentration is very low
D. Reaction rate is independent of the reactant’s concentration

Conversion increases with increase in temperature in case of a/an ______________ reaction?

A. Autocatalytic
B. Irreversible
C. Reversible endothermic
D. Reversible exothermic

Find a mechanism that is consistent with the rate equation and reaction given below ?

2A + B → A2B, ( – rA) = k.CA.CB
A. A + B ⇌ AB; AB + A → A2B
B. A + B → AB; AB + A → A2B
C. A + A → AA; AA + B → A2B

The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the _______________ energy?

A. Activation
B. Potential
C. Binding
D. Threshold