Class 8 Science — Chapter 8: Nature of Matter: Elements, Compounds and Mixtures
72 practice questions · 24 Easy · 24 Medium · 24 Hard
Practise the most important Class 8 Science questions from Chapter 8, "Nature of Matter: Elements, Compounds and Mixtures" — 72 NCERT-aligned multiple-choice questions with answers and explanations. The set is split into 24 Easy, 24 Medium and 24 Hard, so you can warm up on the fundamentals and then push into the exam-level problems that separate top scorers in CBSE Board exams.
"Nature of Matter: Elements, Compounds and Mixtures" is one of the chapters where concept clarity across physics, chemistry and biology basics really pays off. Each MCQ on this chapter is timed and uses exam-grade marking (+4 correct, −1 wrong, 0 skipped), training the same negative-marking accuracy-under-pressure that real papers demand. Every question carries a short explanation, so a wrong answer becomes a quick lesson rather than a dead end — the fastest way to close gaps before a test.
Use this chapter as targeted revision: attempt the Easy set first to confirm your basics on Nature of Matter: Elements, Compounds and Mixtures, then move to Medium and Hard to test application and problem-solving. Your accuracy, streaks and XP save automatically, and the chapter feeds into your overall Class 8 Science mastery score. A sample question is shown below; sign in free to see its answer and practise all 72.
Key concepts: Nature of Matter: Elements, Compounds and Mixtures (Class 8 Science)
This chapter classifies all matter. A mixture is two or more substances simply mixed together — its components keep their own properties, can be in any proportion, and can be separated by physical methods. A pure substance has just one kind of particle and is either an element or a compound. Elements are the simplest substances (one kind of atom, metals/non-metals/metalloids) and cannot be broken down. Compounds form when elements combine chemically in a fixed ratio to make a new substance with new properties, separable only by chemical means — as the iron-and-sulfur experiment neatly shows.
- Mixture
- Two or more substances mixed together whose components keep their own properties, are not chemically combined, and can be present in any proportion.
- Components of a mixture
- The individual substances that make up a mixture; they can be separated from one another by physical methods.
- Pure substance
- Matter made of only one type of particle, so all its particles behave identically; it is either an element or a compound.
- Element
- The simplest kind of pure substance, made of a single kind of atom, which cannot be broken down into anything simpler — the building block of all matter.
Try a sample question
One free sample from this chapter — sign in to check your answer and practise the rest.
Water can be broken into hydrogen and oxygen by an electric current, which shows water is a:
Unlock the full chapter — free
See the answer and solution to this question, then practise all 72 questions (24 Easy · 24 Medium · 24 Hard) with timed scoring and instant feedback, plus the complete key-concept notes, formulas & exam tips. Sign in with Google — no card needed.
Start this chapter free →Nature of Matter: Elements, Compounds and Mixtures — FAQs
What are the key concepts in Class 8 Science Nature of Matter: Elements, Compounds and Mixtures?+
This chapter classifies all matter. A mixture is two or more substances simply mixed together — its components keep their own properties, can be in any proportion, and can be separated by physical methods. A pure substance has just one kind of particle and is either an element or a compound. Elements are the simplest substances (one kind of atom, metals/non-metals/metalloids) and cannot be broken down. Compounds form when elements combine chemically in a fixed ratio to make a new substance with new properties, separable only by chemical means — as the iron-and-sulfur experiment neatly shows. Key ideas include Mixture, Components of a mixture, Pure substance, Element.
What does Class 8 Science Chapter 8 (Nature of Matter: Elements, Compounds and Mixtures) cover on XamBaaz?+
It covers 72 NCERT-aligned MCQs on "Nature of Matter: Elements, Compounds and Mixtures" — 24 Easy, 24 Medium and 24 Hard — each with a timed quiz and an instant explanation, suitable for CBSE Board exams.
Are these "Nature of Matter: Elements, Compounds and Mixtures" questions free to practise?+
Yes — sign in with Google to practise "Nature of Matter: Elements, Compounds and Mixtures" free. Full unlimited access is ₹999/year (limited-time launch price), with no per-chapter charges.
How should I revise "Nature of Matter: Elements, Compounds and Mixtures" for the exam?+
Start with the Easy quiz to confirm your fundamentals, then attempt Medium and Hard for application-level practice. Review each explanation, retry the questions you miss, and track your accuracy on this chapter until it is consistently high.
Are these "Nature of Matter: Elements, Compounds and Mixtures" MCQs available with answers?+
Yes. This page shows one sample question so you can see the format; sign in free with Google to reveal the correct option and a step-by-step "Why" explanation for it, then practise all 72 questions with instant scoring.
Is there negative marking in the "Nature of Matter: Elements, Compounds and Mixtures" quizzes?+
Yes — the timed quizzes use exam-grade marking: +4 for a correct answer, −1 for a wrong one and 0 for a skipped question, so you practise the same negative-marking discipline as CBSE Board exams.
Are these important questions for Nature of Matter: Elements, Compounds and Mixtures?+
The set is curated to the NCERT syllabus and weighted toward the question patterns that actually appear in CBSE Board exams, across Easy, Medium and Hard — so it doubles as an "important questions" revision list for "Nature of Matter: Elements, Compounds and Mixtures".