During the kinetic study of the reaction, $2A + B \rightarrow C + D,$ following results were obtained

Run	$[A]/mol\,L^{-1}$	$[B]/mol\,L^{-1}$	Initial rate of formation of $D/mol\,L^{-1}\,min^{-1}$
$I.$	$0.1$	$0.1$	$6.0 \times 10^{-3}$
$II.$	$0.3$	$0.2$	$7.2 \times 10^{-2}$
$III.$	$0.3$	$0.4$	$2.88 \times 10^{-1}$
$IV.$	$0.4$	$0.1$	$2.40 \times 10^{-2}$

Based on the above data which one of the following is correct?

$A $ gaseous hypothetical chemical equation $2A$ $ \rightleftharpoons  $ $4B + C$ is carried out in a closed vessel. The concentration of $ B$  is found to increase by $5 \times {10^{ - 3}}mol\,\,{l^{ - 1}}$ in $10 $ second. The rate of appearance of $B$  is

Fill up the blank :

$1.$ The rate of reaction depends on ........... step.

$2.$ In bimolecular reaction the reaction take place with ........... species and ........... .

$3.$ The order of reaction is determine by ...........

For a chemical reaction....can never be a fraction

The reaction between $A$ and $B$ is first order with respect to $A$ and zero order with respect to $B$. Fill in the blanks in the following table:

For $n^{th}$ order reaction where $(n < 1)$