If 50 ml of H2 and 30 ml of O2 react to form water vapour final volume of reaction mixthre be

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Q. Assertion :If

30

mL of

H_{2}

and

20

mL of

O_{2}

react to form water, then

5

mL of

H_{2}

is left at the end of the reaction. Reason:

H_{2}

is the limiting reagent.

Q. If 30 mL of

H_{2}

and 20 mL of

O_{2}

reacts to form

H_{2} O

, what is left at the end of the reaction ?

Q. If

20

mL of

H_{2} O_{2}

solution reacts with

80

mL of

0.05 M

{K M n O}_{4}

in acidic medium, then what is the volume strength of

H_{2} O_{2}

In each of the following questions, an Assertion (A) is followed by a corresponding Reason (R). Use the following keys to choose the appropriate answer.

Assertion (A): If 30 mL of $H_{2}$ and 20 mL of $O_{2}$ react to form water, 5 mL of $H_{2}$ is left at the end of the reaction.
Reason (R): $H_{2}$ is the limiting reagent.