Chemistry · JEE

Important Questions: Chemical equations and stoichiometry for JEE

47+ syllabus-aligned questions available

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The most important Chemical equations and stoichiometry questions for JEE cover conceptual traps, standard results, and numerical patterns from Chemical equations and stoichiometry. Goodmarks provides 47+ high-yield MCQs with full solutions.

Focus on what matters most. These important Chemical equations and stoichiometry questions cover high-weightage concepts from Chemical equations and stoichiometry — the topics JEE repeats every year.

Syllabus context

Part of Some Basic Concepts in Chemistry in JEE Main Chemistry.

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Q1ChemistryUnit 1: Some Basic Concepts in Chemistry

Volume of

N_{2},

in litres, liberated on heating 6.4 g of

N H_{4} N O_{2}

is:

Q2ChemistryUnit 1: Some Basic Concepts in Chemistry

On dividing 0.46 by

15.374,

the actual answer is

0.02992 .

The correctly reported answer will be:

Q3ChemistryUnit 1: Some Basic Concepts in Chemistry

Equation for the following reaction.

\boldsymbol{C u}+\boldsymbol{x} \boldsymbol{H} \boldsymbol{N} \boldsymbol{O}_{3} \rightarrow \boldsymbol{C u}\left(\boldsymbol{N} \boldsymbol{O}_{3}\right)_{2}+

2 H_{2} O+2 N O_{y}

Find the value of

x

and

y

Q4ChemistryUnit 1: Some Basic Concepts in Chemistry

heated together, the maximum weight of

C l_{2}

gas evolved will be:

Q5ChemistryUnit 1: Some Basic Concepts in Chemistry

In the reaction

4 N H_{3}+5 O_{2} \longrightarrow

4 N O+6 H_{2} O,

when one mole of ammonia and one mole of oxygen are made to react to completion, then

Q6ChemistryUnit 1: Some Basic Concepts in Chemistry

White phosphorous reacts with limited chlorine and the product is hydrolyzed in the presence of water. What would be the mass of HCl obtained by the hydrolysis of the product formed by the reaction of 62 g of white phosphorus with chlorine in the presence of water?

Q7ChemistryUnit 1: Some Basic Concepts in Chemistry

\boldsymbol{F} \boldsymbol{e}_{\boldsymbol{x}} \boldsymbol{O}_{3}(\boldsymbol{s})+\boldsymbol{2} \boldsymbol{A} \boldsymbol{l}(\boldsymbol{s}) \rightarrow \boldsymbol{2} \boldsymbol{F} \boldsymbol{e}(\boldsymbol{l})+

\boldsymbol{A l}_{2} \boldsymbol{O}_{\boldsymbol{y}}(\boldsymbol{s})+\boldsymbol{H} \boldsymbol{e} \boldsymbol{a} \boldsymbol{t}

Find the value of

x

and

y

Q8ChemistryUnit 1: Some Basic Concepts in Chemistry

The standard solution of sodium hydroxide cannot be prepared by direct weighing of cold sodium hydroxide because it is :

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Frequently asked questions

What makes a Chemical equations and stoichiometry question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Some Basic Concepts in Chemistry are high-weightage?

Key areas include Chemical equations and stoichiometry. Prioritise these before moving to edge cases.

How many important questions should I revise?

Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

Can I practise only important questions on Goodmarks?

Pro users can filter by unit and subtopic to target high-yield areas. Free users can attempt sample questions on this page.