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Rare gases are

  • mono atomic
  • di atomic
  • tri atomic
  • None of above
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1. The material which can be deformed permanently by heat and pressure is called a

  • thermoset
  • thermoplastic
  • chemical compound
  • polymer

2. The isotope atoms differ in ?

  • number of neutrons
  • atomic number
  • number of electrons
  • atomic weight

3. Air contains maximum amount of

  • oxygen
  • nitrogen
  • hydrogen
  • carbon dioxide

4. Which is used in preparation of dynamite ?

  • glycerol
  • ethyl alcohol
  • methyl alcohol
  • glycol

5. Due to rusting the weight of iron

  • Decreases
  • Increases
  • Remains the same
  • Uncertain
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Post a comment

  • Rushikesh Parjane 1 year ago

    Nice

  • aloke 4 years ago

    I think rare gases are mono atomic