NEET Chemistry The s-Block Elements Questions Solved


Which of the alkali metal chloride is expected to have highest m.p. ?

(a) LiCl

(b) NaCl

(c) KCl

(d) RbCl

(a) The lattice energy of alkali metal hallides decreases down the group due to increase in size of alkali metals. Thus,

  LiCl          NaCl          KCl          RbCl          CsCl883°C      808°C       772°C      717°C       645°C

 

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