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Non-Metals and Their Compounds

312 MCQ questions with answers and explanations · page 1 of 13

Test yourself▶ 25 question test▶ 50 question test

Q1. Hydrogen was discovered by whom?

  1. ACharles
  2. BKevendrash
  3. CPriestley
  4. DBoyle
Show answer & explanation

Answer: B) Kevendrash

Q2. About 70% of the Sun is made up of which of the following?

  1. Ahelium
  2. BCarbon
  3. Coxygen
  4. Dhydrogen
Show answer & explanation

Answer: D) hydrogen

Q3. Which element is available in the largest quantity in the universe?

  1. Anitrogen
  2. Bhydrogen
  3. Coxygen
  4. DGinikon
Show answer & explanation

Answer: B) hydrogen

Q4. Which of the following is generally called the 'fuel of the future'?

  1. Ahydrogen
  2. Bmethane
  3. Cnatural gas
  4. DEthanol
Show answer & explanation

Answer: A) hydrogen

Q5. The element which is an essential constituent of acids is ____

  1. Anitrogen
  2. Bhydrogen
  3. Coxygen
  4. Dhelium
Show answer & explanation

Answer: B) hydrogen

Q6. The element whose atomic number and atomic weight are both the same is ____

  1. Ahydrogen
  2. BLithium
  3. Coxygen
  4. Dchlorine
Show answer & explanation

Answer: A) hydrogen

Q7. What is the number of isotopes of hydrogen?

  1. ATwo
  2. BThree
  3. CFour
  4. Dfive
Show answer & explanation

Answer: B) Three

Q8. Which of the following is not an isotope of hydrogen?

  1. AProtium
  2. BDeuterium
  3. Ctritium
  4. Dozone
Show answer & explanation

Answer: D) ozone

Q9. Which of the following is not an isotope of hydrogen?

  1. AProtium
  2. BDeuterium
  3. Ctritium
  4. DAtrium
Show answer & explanation

Answer: D) Atrium

Q10. Tritium is an isotope of what?

  1. Aoxygen
  2. Bhydrogen
  3. CPhosphorus
  4. Dnitrogen
Show answer & explanation

Answer: B) hydrogen

Q11. The radioactive isotope of hydrogen is_

  1. AProtium
  2. BDeuterium
  3. Ctritium
  4. DHydronium
Show answer & explanation

Answer: C) tritium

Q12. Which of the following metals does not give hydrogen gas on the action of dilute salt acid (Hydrochloric acid)?

  1. AAl
  2. BCu
  3. CFe
  4. DZn
Show answer & explanation

Answer: B) Cu

Q13. Which gas is obtained when steam is passed over red hot iron?

  1. Aoxygen gas
  2. Bproducer gas
  3. Chydrogen gas
  4. Dwater gas
Show answer & explanation

Answer: C) hydrogen gas

Q14. All acids react with metals to produce........ gas.

  1. Anitrogen
  2. Bhydrogen
  3. Ccarbon dioxide
  4. Doxygen
Show answer & explanation

Answer: B) hydrogen

Q15. Which of the following reactions does not result in the release of hydrogen gas?

  1. AReaction of zinc metal with dilute sulphuric acid solution
  2. BOn mixing water with plaster of Paris
  3. CWhen zinc metal is heated with sodium hydroxide solution
  4. DReaction of potassium metal with water
Show answer & explanation

Answer: B) On mixing water with plaster of Paris

Q16. Which gas is used in the manufacture of vegetable ghee?

  1. Anitrogen
  2. Bcarbon dioxide
  3. Chydrogen
  4. DNeon
Show answer & explanation

Answer: C) hydrogen

Q17. By which process can cooking oil be converted into 'vanaspati ghee'?

  1. Aby hydrogenation
  2. BBy crystallization
  3. CBy distillation
  4. Dby oxidation
Show answer & explanation

Answer: A) by hydrogenation

Q18. Hydrogenation of vegetable oils using nickel catalyst is an example of which of the following?

  1. Asubstitution reaction
  2. Belimination reaction
  3. Caddition reaction
  4. Dfree radical polymerization
Show answer & explanation

Answer: C) addition reaction

Q19. Which of the following will absorb larger volumes of hydrogen?

  1. AAcidic solution of palladium
  2. BColloidal Ferric Hydroxide
  3. Crefined split platinum
  4. DRefined divided nickel
Show answer & explanation

Answer: A) Acidic solution of palladium

Q20. Metals like palladium and platinum absorb large amounts of hydrogen under special conditions. The hydrogen absorbed by the metal is called ____.

  1. Aabsorbed hydrogen
  2. BHydrogen
  3. Cfunctional hydrogen
  4. Datomic hydrogen
Show answer & explanation

Answer: B) Hydrogen

Q21. Which of the following statements is not correct regarding dihydrogen (H²)?

  1. AH² is lighter than air and insoluble in water.
  2. BDue to high H-H bond dissociation enthalpies, H
  3. CH² reacts with alkali metals at high temperatures, forming metal hydrides
  4. DThe mixture of NO and H is known as syngas.
Show answer & explanation

Answer: D) The mixture of NO and H is known as syngas.

Q22. Water is an excellent solvent because its molecules ____

  1. Aare light weight
  2. Bis indifferent
  3. CIt is highly polar.
  4. Dis nonpolar
Show answer & explanation

Answer: C) It is highly polar.

Q23. The ratio of hydrogen and oxygen in water by volume is ____

  1. A0.047222222222222
  2. B0.084027777777778
  3. C0.043055555555556
  4. D0.33402777777778
Show answer & explanation

Answer: B) 0.084027777777778

Q24. The ratio of hydrogen and oxygen in water by weight is ____

  1. A0.047222222222222
  2. B0.33402777777778
  3. C0.043055555555556
  4. D0.084027777777778
Show answer & explanation

Answer: A) 0.047222222222222

Q25. Pure water is_

  1. Aacidic
  2. Balkaline
  3. CMoody
  4. DNone of these
Show answer & explanation

Answer: C) Moody

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