JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

1 of 1

Application +4 | -1

5 moles of

A{B_2}

weight

125 \times {10^{ - 3}}kg

and 10 moles of

{A_2}{B_2}

weight

300 \times {10^{ - 3}}kg

. The molar mass of

A\left( {{M_A}} \right)

and molar mass of

B\left( {{M_B}} \right)

in kg

\mathrm{mo}{\mathrm{l}^{ - 1}}

are

View answer and explanation

Correct option: D

{M_A} = 5 \times {10^{ - 3}}

and

{M_B} = 10 \times {10^{ - 3}}

Option D (

{M_A} = 5 \times {10^{ - 3}}

and

{M_B} = 10 \times {10^{ - 3}}

) is correct because it is the solution to the system of equations derived from the given masses and moles of the compounds

AB_2

and

A_2B_2

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