Chemistry Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

  • Ozone is :
  • Non-magnetic
  • Paramagnetic
  • Ferromagnetic
  • Diamagnetic
  • Enzymes are
  • Fatty acids
  • Carbohydrates
  • Nucleic acids
  • Proteins
  • Atomic number of an element gives
  • the number of nucleons in its atom
  • the number of electrons in its atom
  • the weight of the atom of the element
  • the total number of elementary particles in its atom
  • A catalyst is a substance which
  • increases the activation energy
  • increases the rate of reaction and increases the equilibrium concentration of products
  • changes the equilibrium of a reaction so that the concentration of the product increases
  • hastens the attainment of equilibrium
  • Air is a
  • compound
  • colloid
  • element
  • mixture
  • Mass number of a nucleus is :
  • the sum of the number of protons and neutrons present in the nucleus
  • always more than the atomic weight
  • always less than its atomic number
  • None of above
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Chemistry Question Answers, PSC, UPSC, IBPS, SSC Previous Papers
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