JEE Main 2022 · 27 Jun · Shift 1 · Chemistry Q89

← JEE Main 2022 · 27 Jun · Shift 1

ChemistryInteger+4 / -1Question 89 of 90

Two elements A and B which form 0.15 moles of $\mathrm{A_2B}$ and $\mathrm{AB_3}$ type compounds. If both $\mathrm{A_2B}$ and $\mathrm{AB_3}$ weigh equally, then the atomic weight of A is ______ times of atomic weight of B.

Your answer

Answer and worked solution

Official answer: 2

Equal masses for equal moles. $2A+B=A+3B$ , so $A=2B$ .

Answer: 2

Topics:Mole concept

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JEE Main 2022 · 27 Jun · Shift 1, Chemistry question 89