Question

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.

Answer 1

Correct Answer - 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.