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Pick out statement (s) which is/are not true about diagonal relationship of Li and Mg:
A. Polarising powers of `Li^(o+)` and `Mg^(2+)` ions are almost the same.
B. Like Li, Mg decomposes water very fast.
C. LiCI and `MgCI_(2)` are deliquesent.
D. Like Li, Mg readily reacts with liquid bromine at ordinary temperaure.

A

LiCI and `MgCI_(2)` are deliquescent.

B

Like Li, Mg decomposes water very fast.

C

Polarising powers of `Li^(o+)` and `Mg^(2+)` are almost the same.

D

Like Li, Mg redily reacts with liquid ammonia at ordinary temperature.

Text Solution

Verified by Experts

The correct Answer is:
B, D
Due to the presence of thin layer of `MgO on Mg metal surface, it decomes water very slowly. Mg reacts with ammonia on heating.
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