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Question: Which of the following orders are correct ? (1) TiH2 < BeH2< CaH2 - Electrical conductance. (2) Li...

Which of the following orders are correct ?

(1) TiH2 < BeH2< CaH2 - Electrical conductance.

(2) LiH < NaH < CaH - Ionic character.

(3) F-F < H-H < D-D - Bond dissociation enthalpy.

(4) H2O < MgH2< NaH - Reducing character.

A

(1), (2) and (3)

B

(2), (3) and (4)

C

(1), (3) and (4)

D

(1), (2), (3) and (4)

Answer

(2), (3) and (4)

Explanation

Solution

(1) BeH2 < CaH2 < TiH2