What is lye?

Assertion $(S)$: The measure of disorder in a biological system is called free energy.
Reason $(R)$: The energy available in a biological system to perform work is called entropy.
$(A)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(B)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(C)$ $S$ is true and $R$ is false.
$(D)$ $S$ is false and $R$ is true.
$(E)$ Both $S$ and $R$ are false.

Folic acid and pantothenic acid belong to which of the following groups?

Due to which property of water is heat distributed uniformly throughout the body of a living organism?

$99 \%$ of living systems are made up of four elements:

Identify the physical and chemical processes from the following:
$I - Ba(OH)_2 + H_2SO_4 \rightarrow BaSO_4 + 2H_2O$
$II -$ Ice $\rightarrow$ Water
$III -$ Water $\rightarrow$ Steam
$IV -$ Starch $\rightarrow$ Glucose
Which of these represent physical processes and chemical processes respectively?