JEE Chemistry - S-block elements (Alkali and Alkaline Earth Metals)

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Question - 1

Which of the alkali metal is having least melting point?

  • A Na
  • B K
  • C Rb
  • D Cs

Question - 2

Which one of the following alkali metals give hydrated salts?

  • A Li
  • B Na
  • C K
  • D Cs

Question - 3

Which one of the following alkaline earth metal carbonates is thermally most stable

  • A MgCO3
  • B CaCO3
  • C SrCO3
  • D BaCO3

Question - 4

The reducing property of alkali metals follows the order

  • A Na < K < Rb < Cs < Li
  • B K < Na < Rb < Cs < Li
  • C Li < Cs < Rb < K < Na
  • D Rb < Cs < K < Na < Li

Question - 5

Which of the following is the least thermally stable?

  • A MgCO3
  • B CaCO3
  • C SrCO3
  • D BeCO3

Question - 6

When heated to 800oC, NaNO3 gives

  • A Na+N2+O2
  • B NaNO2+O2
  • C Na2O+O2+N2
  • D NaN3+O2

Question - 7

Lithium shows a diagonal relationship with

  • A sodium
  • B silicon
  • C nitrogen
  • D magnesium

Question - 8

The oxide of which of the following metals is amphoteric?

  • A Pb
  • B Mg
  • C Ca
  • D Al

Question - 9

Alkaline earth metals are

  • A more reactive
  • B less reducing
  • C more oxidizing
  • D less basic than alkali metals

Question - 10

Which of the following is not a peroxide?

  • A KO2
  • B CrO5
  • C Na2O2
  • D BaO2