Chemical Kinetics and Nuclear Chemistry

In the transformation of \({}_{92}^{238}U\) to \({}_{92}^{234}U\), if one emission is an α-particle, what should be the other
emission(s)?

A reaction was found to be second order with respect to the concentration of carbon monoxide. If the
concentration of carbon monoxide is doubled, with everything else kept the same, the rate of reaction
will

Rate of a reaction can be expressed by Arrhenius equation as:
\($k = A\,{e^{ - E/RT}}\)$
In this equation, E represents

The following mechanism has been proposed for the reaction of NO with Br2 to form NOBr:
NO(g) + Br2 (g) \(\leftrightharpoons\) NOBr2 (g)
NOBr2 (g) + NO (g) \(\to\) 2NOBr (g)
If the second step is the rate determining step, the order of t...

t1/4 can be taken as the time taken for the concentration of a reactant to drop to \(3 \over 4\) of its initial value. If the rate constant for a first order reaction is K, the t1/4 can be written as

A reaction involving two different reactants can never be

A schematic plot of \(ln\) \({K_{eq}}\) versus inverse of temperature for a reaction is shown below

The reaction must be

The photon of hard gamma radiation knocks a proton out of \({}_{12}^{24}Mg\) nucleus to form

Hydrogen bomb is based on the principle of

The rate equation for the reaction 2A + B \(\to\) C is found to be: rate k[A][B]. The correct
statement in relation to this reaction is that the

Consider the following nuclear reactions
\({}_{92}^{238}M \to {}_Y^XN + 2{}_2^4He\)
\({}_Y^XN \to {}_B^AL + 2{\beta ^ + }\)
The number of neutrons in the element L is

In a first order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M in 15
minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is

The half – life of a radioisotope is four hours. If the initial mass of the isotope was 200 g, the
mass remaining after 24 hours undecayed is

In respect of the equation k = Ae-Ea/RT in chemical kinetics, which one of the following statements is correct?

The radionucleide \({}_{90}^{234}Th\) undergoes two successive \(\beta\) -decays followed by one \(\alpha\)-decay. The atomic number
and the mass number respectively of the resulting radionucleide are

The rate law for a reaction between the substances A and B is given by Rate = k[A]n [B]m On doubling the concentration of A and halving the concentration of B, the ratio of the new rate to the earlier rate of the reaction will be as

The half-life of a radioactive isotope is three hours. If the initial mass of the isotope were 256 g, the mass of
it remaining undecayed after 18 hours would be

For the reaction system:
2NO(g) + O2(g) \(\to\) 2NO2(g) volume is suddenly reduce to half its value by increasing the pressure on it. If the reaction is of first order with respect to O2 and second order with respect to NO, the rate of rea...

The integrated rate equation is Rt = log C0 - log Ct . The straight line graph is obtained by
plotting

Units of rate constant of first and zero order reactions in terms of molarity M unit are respectively

The differential rate law for the reaction H2 + I2 \(\to\) 2HI is

\(\beta\) - particle is emitted in radioactivity by

For the reaction A + 2B \(\to\) C, rate is given by R = [A] [B]2 then the order of the reaction is

If half-life of a substance is 5 yrs, then the total amount of substance left after 15 years, when initial amount is 64 grams is