What would be the $SI$ unit for the quantity $\frac{p V^{2} T^{2}}{n}$?

Match the following prefixes with their multiples:

Prefixes	Multiples
$i$. micro	$10^{6}$
$ii$. deca	$10^{9}$
$iii$. mega	$10^{-6}$
$iv$. giga	$10^{-15}$
$v$. femto	$10$

One calorie is equal to (in $J$)

Select the $INCORRECT$ statement/s from the following:
$(a)$ $22$ books have infinite significant figures
$(b)$ In the answer of calculation $2.5 \times 1.25$,the result has four significant figures.
$(c)$ Zeros preceding the first non-zero digit are significant.
$(d)$ In the answer of calculation $12.11 + 18.0 + 1.012$,the result has three significant figures.

Which of the following is correct?

State whether the following statements are true or false:
$(i)$ The Law of Multiple Proportions was given by the scientist Dalton.
$(ii)$ $1 \ L = 1 \ dm^3$
$(iii)$ $10 \ cm = 1 \ dm$