MCQ
Certain bimolecular reactions which follow the first order kinetics are called
- AFirst order reactions
- BUnimolecular reactions
- CBimolecular reactions
- ✓Pseudounimolecular reactions
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$(A)$ The stronger the temperature dependence of the rate constant, the higher is the activation energy.
$(B)$ If a reaction has zero activation energy, its rate is independent of temperature.
$(C)$ The stronger the temperature dependence of the rate constant, the smaller is the activation energy.
$(D)$ If there is no correlation between the temperature and the rate constant then it means that the reaction has negative activation energy.
Reason $R : I^{-1}$ is a good nucleophile as well as a good leaving group.
In the light of the above statements, choose the correct answer from the options given below.
$A.$ $I _2( g ) \rightarrow 2 I ( g )$
$B.$ $HCl ( g ) \rightarrow H ( g )+ Cl ( g )$
$C.$ $H _2 O ( l ) \rightarrow H _2 O ( g )$
$D.$ $C ( s )+ O _2( g ) \rightarrow CO _2( g )$
$E.$ Dissolution of ammonium chloride in water