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Part 1 Expected Mcqs on Chemistry For JKPSC/JKSSB (in Hindi)
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In this lesson i have discuss about part 1 expected mcqs on chemistry for jkpsc /jkssb

Mohammad Irfan Lone
I Was Born In Kashmir in 1995. Engineer by Education Educator by Profession Youtuber by Passion

Unacademy user
mam plz give weightage for the chemistry for 2020
  1. COURSE NAME: EXPECTED MCQ'S ON CHEMISTRY FOR GOVT EXAMS (JKPSC/JKSSB) BY Mohammad I Unacedemy Profile Lone -https:/ rfaan


  3. The most abundant elements is: Silicon (a) (b) (c) Nitrogen (d) Oxygen Calcium

  4. Bar is a unit of a) pressure (b) force (c) energy (d) frequency

  5. Oxygen and ozone are (a) allotropes (b) isomers (c) isotopes (d) isobars

  6. I Who among the following proposed that atom is indivisible? (a) Dalton (b) Berzelius (c) Rutherford (d) Avogadro

  7. 0 Neutron was discovered by (a) J. J. Thomson (b) Chadwick (c) Rutherford (d) Priestley

  8. The word 'insolation' means (a) Matters which insulates (b) Incoming solar radiation (c) Insoluble matters (d) None of the above

  9. Neutrino has- (a) charge + 1, mass 1 (b) charge 0, mass O (c) charge - 1, mass 1 (d) charge 0, mass 1

  10. The photoelectric effect is described as the ejection of electrons from the surface of metal when- (a) it is used (b) it is placed in strong electrick field (c) electrons of suitable velocity impinge on it (d) Light of suitable wavelength falls on it

  11. Which electro magnetic radiation is emitted by radioactive substance- (a) gamma-rays (b) Radio waves (c) Micro waves (d) x - ray

  12. Species containing same number of electrons are called: (a) Isotopes (b) Isobars (c) Isoelectronic (d) Isotones

  13. The phenomenon of radioactivity was discovered in 1898 A. D. by- (a) Henri Becquerel (b) J.J Thomson (c) Marie Curie (d) Pierre Curie

  14. Gamam rays are (a) high energy electrons (b) low energy electrons (c) high energy electromagnetic 1 (d) high energy positions waves

  15. rs the speed of In nuclear raeacto neutrons is slowed down by (a) heavy water (b) ordinary water (c) zinc rods (d) moten caustic soda

  16. What was the fissionable material used in the bombs dropped at Nagasaki (Japan) in the years 1945? (a) Sodium (c) Potassium (c) Plutonium (d) Uranium

  17. Yellow cake' an item of smuggling across broder is- (a) a crude form of heroin (b) a crude form of cocaine (c) uranium oxide (d) unrefined gold

  18. The acid used in eye wash is (a) Oxalic acid (b) nitric acid (c) Boric acid (d) None

  19. 1 Source of vitamin C is (a) Nitric acid (b) Ascorbic acid (c) Oxalic acid (d) Maleic acid

  20. Aqua Regia contains (a) 3 parts of conc. HCI + 1 part of con. HNO (b) 3 parts of conc. HCI + 1 part of con. H SO (c) 3 parts of conc. H.SO+ 1 part of con. HNO (d) None of these

  21. An ideal gas is one which obeys- (a) Gas laws (b) Boyle's laws (c) Charle's law (d) Avogadro's law

  22. Alcoholic fermentation is brought about the action of (a) yeast (b) CO (c) 02 (d) CO

  23. The enzymes are killed- (a) At a very high temperature (b) During chemical reaction (c) At low temperature (d) Under atmospheric pressure

  24. If a refrigerator's door is kept open, then- (a) Room will be cooled (b) Room will be heated (c) May get cooled or heated depending upon the weather (d) No effect on room