Introduction to Analytical Chemistry — Class 11 MCQs with Answers
Class 11 CBSE Chemistry · Chapter 301
40 practice questions · 20 Easy · 20 Medium · Updated
Practise the most important Class 11 CBSE Chemistry questions from Chapter 301, "Introduction to Analytical Chemistry". You get 4 timed quizzes made from 40 NCERT-based MCQs, with answers and explanations. The questions are split into 20 Easy and 20 Medium. Warm up on the basics, then move on to the exam-level questions that set top scorers in CBSE & Maharashtra HSC Board exams, JEE Main, MHT-CET, JEE Advanced and NEET UG apart.
To score well in "Introduction to Analytical Chemistry", focus on reactions, key concepts and careful numericals. Each MCQ here is timed and uses exam-style marking (+4 correct, −1 wrong, 0 skipped). This trains you to stay accurate under time pressure, as real papers need. Every question has a short explanation, so a wrong answer becomes a quick lesson. It is the fastest way to fix gaps before a test.
Use this chapter for focused revision. Start with the Easy set to check your basics on Introduction to Analytical Chemistry, then move to Medium to practise applying them. Your accuracy, streaks and XP save automatically. This chapter also adds to your overall Class 11 Chemistry mastery score. 6 sample questions are solved in full below, with the answer and a worked explanation. Sign in free to start practising.
Key concepts: Introduction to Analytical Chemistry (Class 11 Chemistry)
Analytical chemistry answers two questions about a sample: which constituents are present (qualitative analysis) and how much of each is present (quantitative analysis). This chapter builds the counting tools that quantitative work rests on — the mole, molar mass and the Avogadro constant — and then applies them to percentage composition, empirical and molecular formulae, the standard concentration terms (molarity, molality, mole fraction, ppm, % w/w, % v/v), equivalent mass, and stoichiometric calculations that hinge on identifying the limiting reagent.
- Mole
- The SI unit of amount of substance. One mole contains 6.022 × 10²³ elementary entities, the same number of atoms as there are in 12 g of carbon-12, and it is the bridge between the mass a chemist weighs and the number of particles that actually react.
- Molar mass
- The mass of one mole of a substance, expressed in g mol⁻¹ and numerically equal to the atomic or molecular mass in unified mass units. Moles are obtained from it as n = mass ÷ molar mass, which is the first line of nearly every calculation in this chapter.
- Molar volume of a gas
- One mole of any ideal gas occupies 22.4 L at STP (273 K, 1 atm), regardless of which gas it is. This lets a measured gas volume be converted directly into moles, and then into mass, without weighing the gas at all.
- Percentage composition
- The mass of each element expressed as a percentage of the mass of the whole compound: % of element = (mass of element in one mole ÷ molar mass) × 100. It is what combustion and gravimetric analyses actually report, and it is the starting point for deriving a formula.
Introduction to Analytical Chemistry — important questions & MCQs with answers (Class 11 Chemistry)
6 solved questions from this chapter's difficulty levels, each with its answer and explanation. The other 34 are timed and scored when you sign in.
- Q1Easy
One mole of any substance contains how many elementary particles?
A.6.022 × 10²²B.3.011 × 10²³C.6.022 × 10²³✓ CorrectD.1.008 × 10²³Answer: C. 6.022 × 10²³
Explanation: The Avogadro constant, 6.022 × 10²³ particles per mole, is the fixed number of particles in one mole of any substance.
- Q2Easy
Molarity of a solution is defined as the number of moles of solute dissolved in
A.one kilogram of solventB.one litre of solventC.one kilogram of solutionD.one litre of solution✓ CorrectAnswer: D. one litre of solution
Explanation: Molarity (M) counts moles of solute per litre of the final solution, not per litre of solvent taken.
- Q3Easy
The empirical formula of a compound gives
A.the actual number of atoms in one moleculeB.the arrangement of atoms in spaceC.the molar mass of the compoundD.the simplest whole-number ratio of atoms present✓ CorrectAnswer: D. the simplest whole-number ratio of atoms present
Explanation: The empirical formula only fixes the simplest whole-number ratio of the atoms; the molecular formula gives the actual numbers.
- Q4Medium
The number of water molecules present in 1.8 g of water is
A.6.022 × 10²³B.6.022 × 10²²✓ CorrectC.1.8 × 10²³D.6.022 × 10²¹Answer: B. 6.022 × 10²²
Explanation: 1.8 g ÷ 18 g mol⁻¹ = 0.1 mol, and 0.1 × 6.022 × 10²³ = 6.022 × 10²² molecules.
- Q5Medium
5.85 g of NaCl (molar mass 58.5 g mol⁻¹) is dissolved in water and the solution is made up to 500 mL. The molarity of the solution is
A.0.1 MB.0.2 M✓ CorrectC.0.5 MD.1.0 MAnswer: B. 0.2 M
Explanation: Moles of NaCl = 5.85 ÷ 58.5 = 0.1 mol; volume = 0.5 L, so M = 0.1 ÷ 0.5 = 0.2 mol L⁻¹.
- Q6Medium
The percentage of nitrogen by mass in ammonium nitrate, NH₄NO₃ (molar mass 80 g mol⁻¹), is
A.17.5 %B.28.0 %C.45.0 %D.35.0 %✓ CorrectAnswer: D. 35.0 %
Explanation: NH₄NO₃ contains two N atoms, a mass of 28 g per 80 g of compound, so % N = (28 ÷ 80) × 100 = 35 %.
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Start this chapter free →Introduction to Analytical Chemistry — FAQs
What are the key concepts in Class 11 Chemistry Introduction to Analytical Chemistry?+
Analytical chemistry answers two questions about a sample: which constituents are present (qualitative analysis) and how much of each is present (quantitative analysis). This chapter builds the counting tools that quantitative work rests on — the mole, molar mass and the Avogadro constant — and then applies them to percentage composition, empirical and molecular formulae, the standard concentration terms (molarity, molality, mole fraction, ppm, % w/w, % v/v), equivalent mass, and stoichiometric calculations that hinge on identifying the limiting reagent. Key ideas include Mole, Molar mass, Molar volume of a gas, Percentage composition.
What does Class 11 Chemistry Chapter 301 (Introduction to Analytical Chemistry) cover on XamBaaz?+
It has 40 NCERT-based MCQs on "Introduction to Analytical Chemistry": 20 Easy and 20 Medium. Together they make 4 timed quizzes, and you never get the same set twice. Every question has an instant explanation. They help you prepare for CBSE & Maharashtra HSC Board exams, JEE Main, MHT-CET, JEE Advanced and NEET UG.
Are these "Introduction to Analytical Chemistry" questions free to practise?+
Yes. Sign in with Google to practise "Introduction to Analytical Chemistry" free. Full unlimited access is ₹999/year on a launch offer until 1 December 2026. No chapter is charged separately.
How should I revise "Introduction to Analytical Chemistry" for the exam?+
Start with the Easy quiz to check your basics, then try Medium to practise applying them. There are 4 timed quizzes on this chapter, so you can come back for a fresh set instead of one you have seen. Read each explanation, retry the questions you miss, and track your accuracy until it stays high.
Are these "Introduction to Analytical Chemistry" MCQs available with answers?+
Yes. 6 sample questions are shown here in full, each with the correct option and a step-by-step "Why" explanation. Sign in free with Google to start practising, with instant scoring.
Is there negative marking in the "Introduction to Analytical Chemistry" quizzes?+
Yes. The timed quizzes use exam-style marking: +4 for a right answer, −1 for a wrong one and 0 for a skip, the same negative marking as JEE Main, JEE Advanced and NEET UG. MHT-CET and CBSE board papers have no negative marking. Our mocks for those are scored their way.
What are the important questions from Introduction to Analytical Chemistry (Class 11 Chemistry)?+
The questions that matter most test Mole, Molar mass, Molar volume of a gas, Percentage composition. This page shows 6 solved important MCQs with answers and explanations; all 40 questions on the chapter are available as timed quizzes once you sign in.
Is there an online quiz for Introduction to Analytical Chemistry?+
Yes — Class 11 Chemistry Introduction to Analytical Chemistry has timed online quizzes at Easy and Medium levels, with instant scoring and a worked explanation on every question. The first quiz on the chapter is free.