Guttation is the result of

Heating chloroform with aqueous sodium hydroxide solution forms

Nuclear fusion is common to the pair:

An atomic power nuclear reactor can deliver $300 \, MW$. The energy released due to the fission of each nucleus of a uranium atom $U^{238}$ is $170 \, MeV$. The number of uranium atoms fissioned per hour will be:

Which of the following is a class of $Bryophytes$?

The wavelengths of $K_{\alpha}$ $X$-rays of two metals $A$ and $B$ are $\frac{4}{1875R}$ and $\frac{1}{675R}$ respectively,where $R$ is the Rydberg constant. The number of elements lying between $A$ and $B$ according to their atomic numbers is: