Floral formula of Cruciferae (Brassicaceae) is$-$

Which of the following is a biodegradable polymer?

An electron microscope is operated at $40 \ kV$. The ratio of the resolving power of this microscope to another one which uses yellow light of wavelength $6 \times 10^{-7} \ m$ is:

In a fission reaction ${}_{92}^{236}U \to {}^{117}X + {}^{117}Y + n + n,$ the binding energy per nucleon of $X$ and $Y$ is $8.5\, MeV$ whereas that of ${}^{236}U$ is $7.6\, MeV$. The total energy liberated will be about:

When an electric current is passed through acidulated water,$112 \ mL$ of hydrogen gas at $N.T.P.$ is collected at the cathode in $965 \ seconds$. The current passed,in amperes,is:

$_6 C^{12}$ and $_1 T^3$ are formed in nature due to the nuclear reaction of a neutron with: