General Knowledge in Chemistry for competitive exam

General Knowledge in Chemistry for competitive exam: Questions on General Knowledge is common in any competitive examination like Bank PO, SBI, IBPS, RRB, RBI, NABARD, Bank Clerical Exams, SSC CGL, RAS, CDS, UPSC exams, and all state-related examinations. Here you'll get General Knowledge in chemistry for competitive exam.

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General knowledge on chemistry

General Knowledge or G.K quiz cover a variety of topics like the Indian Geography, World Geography & History, Everyday Science, Sports, Movies, International Organizations, Awards & Honors, Indian Economy & Politics, The Constitution of India, Current Affairs, etc. In this post we shall discuss about General Knowledge on chemistry.

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General knowledge chemistry quiz

Q1. Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen ?

A. Water

B. Hydrogen

C. Nasant Hydrogen

D. Ozone

Answer: A

Q2. The purest form of Iron is

A. Cast iron

B. Steel

C. Pig iron

D. Wrought iron

Answer: D

Q3. Catalytic converters are generally made from

A. Carbon

B. Alkaline metals

C. Transition metals

D. Hydrogen

Answer: C

Q4. The soft silvery metallic element which ionizes easily when heated or exposed to light and is present in atomic clocks is

A. Calcium

B. Cesium

C. Cerium

D. Califonrium

Answer: B

Q5. Peroxyacetyl nitrate is a

A. Secondary pollutant

B. Acidic dye

C. Plant hormone

D. Vitamin

Answer: A

Q6. The alkaloid naturally found in coffee, cocoa and cola nut is

A. Cocaine

B. Morphine

C. Tannin

D. Caffeine

Answer: D

Q7. The mercury and sodium street lamps light up because of

A. Atomic absorption

B. Atomic emission

C. Electron absorption

D. Electron emission

Answer: B

Q8. Combustion is a

A. Physical and chemical process

B. Biological process

C. Physical process

D. Chemical process

Answer: D

Q9. The green colour seen in firework displays is due to the chloride salt of

A. Strontium

B. Barium

C. Sodium

D. Calcium

Answer: B

Q10. Heavy metals got their name because compared to other atoms they have

A. Higher atomic masses

B. Higher atomic numbers

C. Higher densities

D. Higher atomic radii

Answer: A

Q11. When a helium atom loses an electron it becomes

A. An alpha particle

B. A proton

C. A positive helium ion

D. A negative helium ion

Answer: C

Q12. Most commonly used bleaching agent is

A. Alcohol

B. Chlorine

C. Sodium chloride

D. Carbon dioxide

Answer: B

Q13. Chemical decomposition of an organic compound by water is called as

A. Hydrogenation

B. Hydration

C. Hydrolysis

D. All of these

Answer: A

Q14. Which of the following is not a form of carbon ?

A. Soot

B. Hematite.

C. Graphite

D. Charcoal

Answer: C

Q15. What happens when a drop of glycerol is added to crushed KMnO₄ spread on a paper ?

A. The paper ignites

B. There is a crackling sound

C. There is a violent explosion

D. There is no reaction

Answer: A

Q16. Which of the following is not a form of carbon ?

A. Soot

B. Hematite.

C. Graphite

D. Charcoal

Answer: B

Q17. Which of the following is used in pencils ?

A. Graphite

B. Sulphur

C. Phosphorus

D. Charcoal

Answer: A

Q18. The pollutant responsible for ozone holes is

A. CO₂

B. SO₂

C. CO

D. CFC

Answer: D

Q19. The rusting of metal iron in air needs both

A. Oxygen and moisture

B. Carbon dioxide and moisture

C. Water and paint

D. Oxygen and grease

Answer: A

Q20. Acid rain is caused by

A. CO and CO₂

B. SO₂ and O₂

C. SO₂ and NO₂

D. NO₂ and O₂

Answer: C

Q21. The process of improving the quality of rubber by heating it with sulphur is called

A. Vulcanization

B. Acceleration

C. Sulphonation

D. Galvanization

Answer: A

Q22. Ink is prepared from

A. Dye

B. Tannin

C. Starch

D. Latex

Answer: B

Q23. Which of the following is not a noble gas ?

A. Hydrogen

B. Helium

C. Neon

D. Argon

Answer: A

Q24. Which of the following is not a nitrogenous fertilizer ?

A. Ammonium sulphate

B. Urea

C. Ammonium nitrate

D. Superphosphate

Answer: D

Q25. Formic acid is produced by

A. White ants

B. Cockroaches

C. Red ants

D. Mosquitoes

Answer: C

22 Oct 2020

General Knowledge in Chemistry for competitive exam