Do you want to improve your understanding of general science questions? Inspired by the NCERT GK book, this effort offers you a carefully selected set of general science (chemistry) GK questions with answers. These GK question and answer sets, which cover the fundamental concepts of matter, solutions, mixtures, and elements, are ideal for students, competitive exam candidates, and inquisitive learners. These science-based tests, which feature an easy-to-understand format, help improve memory retention and solidify fundamentals. Our collection of science and chemistry questions will help you learn more effectively, whether you’re studying for school exams or general knowledge assessments.
In this blog post, we’ve compiled 50 Most Important General Science GK Questions on the Matter in Our Surroundings with detailed answers as a part of the Science GK effort by our team. These questions are ideal for aspirants preparing for UPSC, SSC, Railway, CDS, NDA, State PSC, and other government exams. Understanding these facts not only strengthens your static GK but also gives an edge in science, especially in the physical science and chemistry sections.
Multiple-Choice Question (General Science Questions With Answers)
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📘 Matter in Our Surroundings
- Which of the following is matter?
a) Love
b) Hate
c) Air
d) Thought - Early Indian philosophers classified matter into how many basic elements?
a) Three
b) Five
c) Seven
d) Four - Particles of matter are:
a) Continuous
b) Very small beyond imagination
c) Visible with naked eyes
d) Non-divisible - The intermixing of particles of two different types of matter on their own is called:
a) Evaporation
b) Diffusion
c) Fusion
d) Sublimation - Which activity shows that particles of matter have space between them?
a) Smelling incense stick
b) Dissolving salt in water
c) Burning wood
d) Heating ice - Which state of matter has maximum force of attraction?
a) Gas
b) Liquid
c) Solid
d) Plasma - Which of these is compressible?
a) Solids only
b) Solids and liquids
c) Gases
d) Liquids only - The SI unit of mass is:
a) Gram
b) Kilogram
c) Newton
d) Tonne - The melting point of ice is:
a) 0°C
b) 273 K
c) 100°C
d) 373 K - Which process changes a solid directly into gas?
a) Deposition
b) Fusion
c) Sublimation
d) Condensation - LPG and CNG are stored in cylinders because gases are:
a) Non-compressible
b) Highly compressible
c) Non-diffusive
d) Heavier - The boiling point of water is:
a) 0 K
b) 273 K
c) 373 K
d) 273°C - The change of gaseous state directly to solid state is called:
a) Sublimation
b) Fusion
c) Deposition
d) Evaporation - Which factor does NOT affect evaporation?
a) Surface area
b) Wind speed
c) Humidity
d) Density - Latent heat of vaporisation is:
a) Heat required to change liquid into solid
b) Heat required to change liquid into gas at boiling point
c) Heat required to increase temperature by 1 K
d) None of these - The process of melting is also known as:
a) Evaporation
b) Fusion
c) Vaporisation
d) Sublimation - Why do we wear cotton clothes in summer?
a) They are colorful
b) They trap heat
c) They absorb sweat and help in evaporation
d) They are fashionable - Which state of matter has maximum kinetic energy?
a) Solid
b) Liquid
c) Gas
d) Plasma - Which phenomenon is responsible for cooling when acetone is poured on palm?
a) Freezing
b) Evaporation
c) Sublimation
d) Deposition - The pressure exerted by a gas is due to:
a) Its weight
b) Gravity
c) Force of particles colliding with container walls
d) Heat absorbed - Which of these is a bulk phenomenon?
a) Boiling
b) Evaporation
c) Diffusion
d) Sublimation - Which of these is a surface phenomenon?
a) Boiling
b) Evaporation
c) Melting
d) Condensation - Ice at 273 K is more effective in cooling than water at 273 K because:
a) It is colder
b) It absorbs latent heat of fusion
c) It evaporates faster
d) It is solid - What produces more severe burns?
a) Hot water
b) Steam
c) Cold water
d) Ice - The smell of hot food reaches a distance because:
a) Heating reduces density
b) Diffusion is faster at higher temperature
c) Food molecules expand
d) Conduction occurs
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📘 Is Matter Around Us Pure?
- A pure substance consists of:
a) Mixtures only
b) Single type of particles
c) Two or more elements
d) Variable composition - Which of the following is a homogeneous mixture?
a) Soil
b) Salt dissolved in water
c) Oil and water
d) Sand in water - Which is a heterogeneous mixture?
a) Air
b) Oil and water
c) Vinegar
d) Lemonade - Which mixture shows Tyndall effect?
a) Salt solution
b) Milk
c) Sugar solution
d) Copper sulphate solution - Brass is a mixture of:
a) Copper and iron
b) Zinc and tin
c) Copper and zinc
d) Iron and carbon - The dispersed phase in milk is:
a) Water
b) Fat globules
c) Protein only
d) Gas bubbles - Suspension is a:
a) Homogeneous mixture
b) Heterogeneous mixture
c) Pure substance
d) Compound - Which solution is stable and particles do not settle down?
a) Suspension
b) Solution
c) Mixture
d) Mud water - Scattering of light by colloids is called:
a) Brownian motion
b) Diffraction
c) Tyndall effect
d) Refraction - Example of solid in liquid colloid is:
a) Aerosol
b) Foam
c) Mud water
d) Smoke - Which is NOT a property of metals?
a) Malleability
b) Poor conductor of electricity
c) Sonority
d) Lustre - The only liquid metal at room temperature is:
a) Bromine
b) Mercury
c) Cesium
d) Gallium - Which of these is a metalloid?
a) Sodium
b) Oxygen
c) Silicon
d) Gold - A compound is formed by:
a) Physical mixing
b) Chemical combination in fixed proportion
c) Variable proportion
d) Manual mixing - Properties of a mixture are:
a) Always new
b) Same as that of constituents
c) Different from constituents
d) Non-variable - Separation of butter from curd is done by:
a) Filtration
b) Centrifugation
c) Evaporation
d) Distillation - Rusting of iron is a:
a) Physical change
b) Chemical change
c) Temporary change
d) None - Example of homogeneous gaseous solution is:
a) Fog
b) Air
c) Smoke
d) Clouds - Vinegar is a:
a) Compound
b) Mixture of solids
c) Solution of acetic acid in water
d) Colloid - Salt solution is separated by:
a) Filtration
b) Evaporation
c) Sublimation
d) Distillation - Naphthalene balls disappear in air due to:
a) Deposition
b) Melting
c) Sublimation
d) Diffusion only - Which is a pure substance?
a) Milk
b) Iron
c) Air
d) Wood - The number of naturally occurring elements is about:
a) 50
b) 92
c) 118
d) 200 - Blood is an example of:
a) Pure substance
b) Suspension
c) Colloid
d) Solution - During burning of a candle:
a) Only chemical change occurs
b) Only physical change occurs
c) Both physical and chemical changes occur
d) No change
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Answer Key
| S. No. | Answer | S. No. | Answer |
| 1 | C. Air | 26 | B. Single type of particles |
| 2 | B. Five | 27 | B. Salt dissolved in water |
| 3 | B. Very small beyond imagination | 28 | B. Oil and water |
| 4 | B. Diffusion | 29 | B. Milk |
| 5 | B. Dissolving salt in water | 30 | C. Copper and zinc |
| 6 | C. Solid | 31 | B. Fat globules |
| 7 | C. Gases | 32 | B. Heterogeneous mixture |
| 8 | B. Kilogram | 33 | B. Solution |
| 9 | B. 273 K | 34 | C. Tyndall effect |
| 10 | C. Sublimation | 35 | C. Mud water |
| 11 | B. Highly compressible | 36 | B. Poor conductor of electricity |
| 12 | C. 373 K | 37 | B. Mercury |
| 13 | C. Deposition | 38 | C. Silicon |
| 14 | D. Density | 39 | B. Chemical combination in fixed proportion |
| 15 | B. Heat required to change liquid into gas at boiling point | 40 | B. Same as that of constituents |
| 16 | B. Fusion | 41 | B. Centrifugation |
| 17 | C. They absorb sweat and help in evaporation | 42 | B. Chemical change |
| 18 | C. Gas | 43 | B. Air |
| 19 | B. Evaporation | 44 | C. Solution of acetic acid in water |
| 20 | C. Force of particles colliding with container walls | 45 | B. Evaporation |
| 21 | A. Boiling | 46 | C. Sublimation |
| 22 | B. Evaporation | 47 | B. Iron |
| 23 | B. It absorbs latent heat of fusion | 48 | B. 92 |
| 24 | B. Steam | 49 | C. Colloid |
| 25 | B. Diffusion is faster at higher temperature | 50 | C. Both physical and chemical changes occur |
Tips for Aspirants – Why These GK Questions Matter
If you’re aiming for exams like UPSC, SSC, Railways, or other State Public Service Commissions, mastering General Science GK is a must. Questions from “Matter in Our Surroundings” are frequently repeated in exams because they establish a scientific foundation for understanding the topics of General science.
🟢 These GK questions with answers help in:
- Strengthening your static GK base
- Quick revision of conceptual theories
- Differentiating between similar-sounding options
Pro Tip: Revise these questions multiple times, focus on keywords, and try linking each theory to a scientist’s name—it really helps in the elimination strategy!
Conclusion
We hope you found this collection of 50 MCQs on the Matter in Our Surroundings helpful in your exam preparation. General Science isn’t just about memorizing formulae and terminologies—it’s about understanding how our discipline continues to evolve from the very beginning.
👉 Stay tuned for General Science GK Part-2
✍️ For more GK questions with answers, visit our dedicated 👉 GK Section.
