(C) Let the atomic weight of $A$ be $A$ and the atomic weight of $B$ be $B$.The molar mass of $A_2 B$ is $(2A + B) \ g/mol$.The molar mass of $AB_3$ i

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(C) Let the atomic weight of $A$ be $A$ and the atomic weight of $B$ be $B$.The molar mass of $A_2 B$ is $(2A + B) \ g/mol$.The molar mass of $AB_3$ is $(A + 3B) \ g/mol$.Given that $0.15 \ mol$ of $A_2 B$ and $0.15 \ mol$ of $AB_3$ have equal mass:$0.15 \times (2A + B) = 0.15 \times (A + 3B)$Dividing both sides by $0.15$:$2A + B = A + 3B$Rearranging the terms:$2A - A = 3B - B$$A = 2B$Thus,the atomic weight of $A$ is $2$ times the atomic weight of $B$.

Class 11 Chemistry Some Basic Concepts of Chemistry Chemical stoichiometry

Medium

Two elements $A$ and $B$ form $0.15 \ mol$ of $A_2 B$ and $AB_3$ type compounds. If $0.15 \ mol$ of both $A_2 B$ and $AB_3$ weigh equally,then the atomic weight of $A$ is $...$ times the atomic weight of $B$.

JEE MAIN 2022 All JEE MAIN

A
$4.5$
B
$4$
C
$2$
D
$9$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Chemistry Questions

Chapter

Some Basic Concepts of Chemistry

Subtopic

Chemical stoichiometry

Previous Year

JEE MAIN 2022 Paper All JEE MAIN years →

When $3 \ g$ of $C_2H_6$ is completely burnt,find out the volume of $CO_2$ produced at $STP$ in $L$.

Medium

View Solution

When $5 \, mL$ of $N \, HCl$,$20 \, mL$ of $N/2 \, H_2SO_4$,and $30 \, mL$ of $N/3 \, HNO_3$ are mixed together and the volume is made up to $1 \, L$,the normality of the resulting solution is:

Medium

View Solution

The number of moles of methane required to produce $11 \ g$ of $CO_{2(g)}$ after complete combustion is:
(Given molar mass of methane in $g \ mol^{-1}: 16$)

MediumJEE MAIN 2024

View Solution

How many grams of a dibasic acid (molar mass $= 200$) are present in $100 \, mL$ of its aqueous solution to make its strength $0.1 \, N$ (decinormal)?

Medium

View Solution

In the reaction,$2Al_{(s)} + 6HCl_{(aq)} \rightarrow 2Al^{3+}_{(aq)} + 6Cl^{-}_{(aq)} + 3H_{2(g)}$,which of the following statements is correct?

DifficultJEE MAIN 2026

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

Two elements $A$ and $B$ form $0.15 \ mol$ of $A_2 B$ and $AB_3$ type compounds. If $0.15 \ mol$ of both $A_2 B$ and $AB_3$ weigh equally,then the atomic weight of $A$ is $...$ times the atomic weight of $B$.

Similar Questions

When $3 \ g$ of $C_2H_6$ is completely burnt,find out the volume of $CO_2$ produced at $STP$ in $L$.

When $5 \, mL$ of $N \, HCl$,$20 \, mL$ of $N/2 \, H_2SO_4$,and $30 \, mL$ of $N/3 \, HNO_3$ are mixed together and the volume is made up to $1 \, L$,the normality of the resulting solution is:

The number of moles of methane required to produce $11 \ g$ of $CO_{2(g)}$ after complete combustion is:(Given molar mass of methane in $g \ mol^{-1}: 16$)

How many grams of a dibasic acid (molar mass $= 200$) are present in $100 \, mL$ of its aqueous solution to make its strength $0.1 \, N$ (decinormal)?

In the reaction,$2Al_{(s)} + 6HCl_{(aq)} \rightarrow 2Al^{3+}_{(aq)} + 6Cl^{-}_{(aq)} + 3H_{2(g)}$,which of the following statements is correct?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The number of moles of methane required to produce $11 \ g$ of $CO_{2(g)}$ after complete combustion is:
(Given molar mass of methane in $g \ mol^{-1}: 16$)