Chemistry set 1 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 504 questions
Q.271 Which of the following is an example of a 'Colloid'?
A salt solution
B sugar solution
C milk
D air
Discuss / Board
Q.272 What is the primary gas found in 'Bhopal Gas Tragedy'?
A carbon monoxide
B methyl isocyanate
C nitrogen dioxide
D phosgene
Discuss / Board
Q.273 The ability of Carbon to form long chains or rings is known as:
A allotropy
B isomerism
C catenation
D hybridization
Discuss / Board
Q.274 Which of the following is used in 'Pencils'?
A charcoal
B graphite
C lead
D coke
Discuss / Board
Q.275 Which of the following is a 'Synthetic Polymer'?
A silk
B wool
C nylon
D cotton
Discuss / Board
Q.276 Which element is used to manufacture the 'Heaters' of electric irons?
A copper
B tungsten
C nichrome
D aluminum
Discuss / Board
Q.277 What is the common name of 'Calcium Hypochlorite'?
A baking powder
B bleaching powder
C washing soda
D plaster of paris
Discuss / Board
Q.278 Which among the following is the 'Lightest Metal'?
A hydrogen
B lithium
C sodium
D magnesium
Discuss / Board
Q.279 The 'Tyndall Effect' is a phenomenon of:
A refraction of light
B reflection of light
C scattering of light
D diffraction of light
Discuss / Board
Q.280 Which of the following is used in 'Flash Photography'?
A neon
B argon
C xenon
D helium
Discuss / Board
Q.281 Which chemical is known as 'Spirit of Salt'?
A sulphuric acid
B nitric acid
C hydrochloric acid
D acetic acid
Discuss / Board
Q.282 The main component of 'Honey' is:
A glucose
B fructose
C sucrose
D maltose
Discuss / Board
Q.283 Which of the following is a 'Liquid Non-metal'?
A mercury
B bromine
C iodine
D chlorine
Discuss / Board
Q.284 Which law states that mass can neither be created nor destroyed in a chemical reaction?
A law of constant proportions
B law of conservation of mass
C law of multiple proportions
D avogadros law
Discuss / Board
Q.285 Which of the following is used as an 'Antiseptic' for wounds?
A iodine
B chlorine
C sulphur
D nitrogen
Discuss / Board
Q.286 The radioactive isotope used to determine the age of fossils is:
A uranium-235
B carbon-14
C cobalt-60
D iodine-131
Discuss / Board
Q.287 Which of the following is a 'Sublimable' substance?
A salt
B sugar
C camphor
D chalk
Discuss / Board
Q.288 Which gas is known as 'Laughing Gas'?
A nitric oxide
B nitrous oxide
C nitrogen dioxide
D ammonia
Discuss / Board
Q.289 Which of the following is the 'Purest Form of Carbon'?
A charcoal
B diamond
C fullerene
D coke
Discuss / Board
Q.290 What is the chemical name of 'Vitamin C'?
A citric acid
B ascorbic acid
C tartaric acid
D oxalic acid
Discuss / Board
Q.291 Which metal is the best conductor of electricity?
A copper
B gold
C silver
D aluminum
Discuss / Board
Q.292 The 'Ozone Layer' in the upper atmosphere protects us from:
A infrared rays
B ultraviolet rays
C visible light
D x-rays
Discuss / Board
Q.293 Which of the following is an 'Alloy of Mercury'?
A brass
B bronze
C amalgam
D steel
Discuss / Board
Q.294 Which chemical is used in 'Dry Cleaning'?
A petrol
B benzene
C perchloroethylene
D methanol
Discuss / Board
Q.295 What is the common name of 'Sodium Bicarbonate'?
A baking soda
B washing soda
C caustic soda
D bleaching powder
Discuss / Board
Q.296 Which of the following is used as 'Solder' for joining wires?
A lead and zinc
B tin and lead
C copper and tin
D aluminum and iron
Discuss / Board
Q.297 Which metal is stored in 'Kerosene' due to its high reactivity?
A magnesium
B sodium
C calcium
D zinc
Discuss / Board
Q.298 What is the chemical name of 'Quick Lime'?
A calcium hydroxide
B calcium oxide
C calcium carbonate
D calcium sulphate
Discuss / Board
Q.299 Which among the following is the 'Heaviest Natural Element'?
A lead
B mercury
C uranium
D gold
Discuss / Board
Q.300 Which of the following is a 'Noble Metal'?
A iron
B aluminum
C gold
D copper
Discuss / Board

Master Chemistry set 1 for All Competitive Exams 2026

Practicing Chemistry set 1 MCQs is one of the most effective ways to prepare for competitive examinations in 2026. This topic-wise question bank contains carefully selected multiple-choice questions designed to strengthen conceptual understanding, improve accuracy, and enhance problem-solving speed. Our collection includes beginner, intermediate, and advanced-level questions frequently asked in JKSSB, SSC, Banking, Railway, Police, Defence, State PSC, and various national-level examinations. Every question is structured to reflect real exam patterns and helps candidates become familiar with objective-type assessment formats. Instant answer verification enables students to identify mistakes immediately and learn the correct approach without wasting valuable preparation time. Regular practice of topic-wise MCQs improves retention, reinforces key concepts, and develops confidence required to perform well under exam pressure. Whether you are revising important concepts, preparing for an upcoming recruitment test, or strengthening weak areas, these practice questions provide a reliable platform for continuous improvement. Consistent participation in MCQ-based learning sessions can significantly increase your chances of achieving higher scores and better ranks in competitive examinations.

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