In $Bryophytes$,the adult plant body is:

If the electron of a hydrogen atom is present in the first orbit,the total energy of the electron is

Assertion $(A)$: The $pH$ of a buffer solution containing equal moles of acetic acid and sodium acetate is $4.8$ ($pK_a$ of acetic acid is $4.8$).
Reason $(R)$: The ionic product of water at $25^{\circ} C$ is $10^{-14} \ mol^2 \cdot L^{-2}$. The correct answer is

The normal at the point $(1,1)$ on the curve $2y + x^{2} = 3$ is

What is the order of esterification of alcohols?

Which role is played by Lactobacillus in our stomach?