HomeTestsSearchRankProfile

Stoichiometry Questions

Practice 31 Stoichiometry questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

📚
31
Total Questions
🟢
5
Easy
🟡
21
Medium
🔴
5
Hard
Practice by Exam:Chemistry(31)

About Stoichiometry — practice questions, PYQs & concepts

Stoichiometry is a frequently-tested topic on Chemistry. ExamTest.live currently lists 31 Stoichiometry questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Stoichiometry weight in competitive exams

Across our Stoichiometry question bank, the largest sources are Chemistry (31). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 5 easy Stoichiometry questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Stoichiometry Questions(1–31 of 31)

Filter:
Q1mediummcqChemistryAIEEE 20072026
0% accuracy
In the reaction , which statement is correct?
Q2easymcqChemistryNEET 20192026
0% accuracy
The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is:
Q3mediummcqChemistryNEET (UG) 20172026
0% accuracy
The correct order of the stoichiometries of formed when in excess is treated with the complexes: respectively is:
Q4mediummcqChemistryNEET 20172026
The correct order of the stoichiometries of formed when in excess is treated with the complexes: respectively is:
Q5mediummcqChemistryJEE Main2026
A gaseous hydrocarbon gives upon combustion of water and of . The empirical formula of the hydrocarbon is:
Q6mediummcqChemistryJEE Main2026
Experimentally it was found that a metal oxide has formula . Metal is present as and in its oxide. Fraction of the metal which exists as would be:
Q7easymcqChemistryAIEEE 20042026
To neutralize completely of aqueous solution of phosphorous acid (), the volume of aqueous solution required is:
Q8easymcqChemistryAIEEE 20042026
molecules of urea are present in of its solution. The concentration of the urea solution is:
Q9mediummcqChemistryNEET (UG) 20242026
A compound X contains of A, of B, and the remaining percentage of C. The empirical formula of X is:(Given atomic masses: A = , B = , C = )
Q10mediummcqChemistryNEET (UG) 20242026
of sodium hydroxide was treated with of solution. The mass of sodium hydroxide left unreacted is equal to:
Q11mediummcqChemistryNEET 20232026
The mass of produced by heating of pure limestone is:(Atomic mass of )
Q12easymcqChemistryNEET 20232026
Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is:
Q13hardmcqChemistryNEET 20222026
What mass of pure will be required to neutralise of solution according to the following reaction?
Q14mediummcqChemistryNEET 20212026
An organic compound contains (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. Of is , is ]
Q15mediummcqChemistryNEET (UG) 20182026
For the redox reaction: The correct coefficients of the reactants for the balanced equation are:
Q16hardmcqChemistryNEET (UG) 20182026
A mixture of formic acid and oxalic acid is treated with conc. . The evolved gaseous mixture is passed through pellets. Weight (in g) of the remaining product at STP will be:
Q17mediummcqChemistryChemistry
3% accuracy
Among the following, choose the ones with equal number of atoms:A. of () [molar mass = ]B. of () [molar mass = ]C. of () [molar mass = ]D. of () [molar mass = ]E. of () [molar mass = ]Choose the correct answer from the options given below:
Q18hardmcqChemistryChemistry
Suppose the elements and combine to form two compounds and . When of weighs and of weighs , the atomic weights of and are:
Q19hardmcqChemistryChemistry
What is the mass of the precipitate formed when of solution of is mixed with of solution?
Q20hardmcqChemistryChemistry
of a magnesium carbonate sample decomposes on heating to give carbon dioxide and magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? (Atomic weight: , , )
Q21mediummcqChemistryChemistry
When of is mixed with of , each at S.T.P., the moles of formed is equal to:
Q22mediummcqChemistryChemistry
How many grams of concentrated nitric acid solution (70% by mass) should be used to prepare of ?
Q23easymcqChemistryChemistry
The number of atoms in of a triatomic gas is ():
Q24mediummcqChemistryChemistry
of sodium carbonate, is dissolved in enough water to make of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, and carbonate ions, are respectively: (Molar mass of )
Q25mediummcqChemistryChemistry
What is the in the final solution prepared by mixing of with of ?
Q26mediummcqChemistryChemistry
of hydrogen and of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be:
Q27mediummcqChemistryChemistry
Number of moles of required to oxidize one mole of ferrous oxalate completely in acidic medium will be:
Q28mediummcqChemistryChemistry
How many moles of lead (II) chloride will be formed from a reaction between of and of ?
Q29mediummcqChemistryChemistry
What volume of oxygen gas () measured at and , is needed to burn completely of propane gas () measured under the same conditions?
Q30mediummcqChemistryChemistry
The number of moles of that will be needed to react with one mole of sulphite ion in acidic solution is:
Q31mediummcqChemistryChemistry
In the balanced chemical reaction and respectively corresponds to:

Frequently Asked Questions

How many Stoichiometry questions are on ExamTest.live?▼
We have 31 Stoichiometry questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Stoichiometry MCQs free?▼
Yes. All Stoichiometry questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Stoichiometry questions?▼
Stoichiometry questions are commonly asked in Chemistry. You can filter by exam using the links above.
How do I practice Stoichiometry questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.