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The s-block Elements — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThe s-block Elements3 Marks
Question
Among the alkali metals which has:
  1. Highest melting point.
  2. Most electropositive character.
  3. Lowest size of cation.
  4. Strongest reducing character.
  5. Weakest reducing agent.
✓

Answer

  1. Lithium has highest melting point due to small size and strong metallic bond.
  2. Cs is most electropositive due to lowest ionization enthalpy.
  3. $\mathrm{Li}^+$ is smallest cation.
  4. 'Li' is best reducing agent.
  5. Na is weakest reducing agent.
  6. CsOH is strongest base.

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