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Home Questions & Answer Science Questions & Answers Chemistry Questions & Answers

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

  • Ozone is :
  • ANon-magnetic
  • BParamagnetic
  • CFerromagnetic
  • DDiamagnetic
  • Enzymes are
  • AFatty acids
  • BCarbohydrates
  • CNucleic acids
  • DProteins
  • Atomic number of an element gives
  • Athe number of nucleons in its atom
  • Bthe number of electrons in its atom
  • Cthe weight of the atom of the element
  • Dthe total number of elementary particles in its atom
  • A catalyst is a substance which
  • Aincreases the activation energy
  • Bincreases the rate of reaction and increases the equilibrium concentration of products
  • Cchanges the equilibrium of a reaction so that the concentration of the product increases
  • Dhastens the attainment of equilibrium
  • Air is a
  • Acompound
  • Bcolloid
  • Celement
  • Dmixture
  • Mass number of a nucleus is :
  • Athe sum of the number of protons and neutrons present in the nucleus
  • Balways more than the atomic weight
  • Calways less than its atomic number
  • DNone of above
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