Embibe Experts Solutions for Chapter: Nuclear Chemistry, Exercise 1: Exercise 1

The average (mean) life at a radio nuclide which decays by parallel path is

$\begin{array}{cc}\mathrm{A}\stackrel{{\mathrm{\lambda }}_1}{\to }\mathrm{B};& {\mathrm{\lambda }}_1=1.8\times {10}^{-2}{\sec }^{-1}\\ 2\mathrm{A}\stackrel{{\mathrm{\lambda }}_2}{\to }\mathrm{C};& {\mathrm{\lambda }}_2={10}^{-3}{\sec }^{-1}\end{array}$

Which of the following process not lead to the formation of isobars?

When ${90}^{\mathrm{th} }$ $\left(\mathrm{IIIB}\right)$ elements emit one $\alpha$-particle and one $\beta$-particle the daughter nuclide group in the periodic table is

Symbol is needed to complete the nuclear equation ${}_{29}{}^{63}\mathrm{Cu}\left(\mathrm{p},...\right){}_{29}{}^{62}\mathrm{Cu}$

A sample of ${}_{92}{}^{238}\mathrm{U}$ when kept at $298 \mathrm{K}$ in a closed vessel shows $\alpha$- decay and $\beta$- decay to give ${}_{82}{}^{206} \mathrm{Pb}$. After '$\mathrm{t}$' hours, the volume of the gas collected in the vessel at $1 \mathrm{atm},273 \mathrm{K}$ is found to be $89.6 \mathrm{mL}$. Then, which of the following is/are correct for the nuclear process and the products of the process?

In radioactive disintegration series ${}_{90}\mathrm{Th}^{23}$ converted to ${}_{82}\mathrm{Pb}^{208}$ which of the following statement(s) is (are) true

Select the correct statements

A radioactive sample emits $\mathrm{n\beta }$-particles in $4$ seconds and emits $0.6\mathrm{n\beta }$-particles in next $4$ seconds. What is the mean life of the sample in seconds? $\left[\ln 10=2.3, \ln 6=1.78\right]$