NEET UG CHEMISTRY MCQ: HYDROGEN

1 Medium

1 of 1

Application +4 | -1

Hydrogen is formed according to the equation

2 \mathrm{Na}+2 \mathrm{H}_2 \mathrm{O} \rightarrow 2 \mathrm{NaOH}+\mathrm{H}_2

. How many grams of sodium are required to produce

7.81 \mathrm{~g}

\mathrm{H}_2

View answer and explanation

Correct option: B

179.6 \mathrm{~g}

Option B (

179.6 \mathrm{~g}

) is correct because it is calculated using stoichiometry based on the balanced chemical equation, converting grams of hydrogen to moles, and then using the mole ratio to find the mass of sodium required.

More Questions from HYDROGEN

Practice All Chapter MCQs →

Hydrogen accepts an electron to form inert gas configuration. In this it resembles

\mathrm{CaC}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{Ca}(\mathrm{OH})_2+' \mathrm{X}\,'

\mathrm{Mg}_2 \mathrm{C}_3+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{Mg}(\mathrm{OH})_2+'\mathrm{Y}\,'

The products '

\mathrm{X}

' and '

\mathrm{Y}

' respectively are

{H_2}{O_2} \to 2{H^ + } + {O_2} + 2{e^ - };{E^0} = - 0.68V

This equation represents which of the following behaviour of

{\mathrm{H}_\mathrm{2}}{\mathrm{O}_\mathrm{2}}

Which reaction shows oxidizing nature of

{\mathrm{H}_2}{\mathrm{O}_2}

? Which of the following could act as propellent for rockets. (A):

{SiH}_4

AlH_3

and

{NH}_3

are ionic hydrides

(R):Ionic hydrides do not react with water