Multiple choice

Pick out the statement(s) which is/are not true about the diagonal relationship of Li and Mg.

(i) Polarising powers of Li+ and Mg2+ are almost the same. (ii) Both Li and Mg decompose water very quickly. (iii) LiCl and MgCl2 are deliquescent. (iv) Like Li, Mg does not form solid bicarbonates.

  1. (i) and (ii)

  2. (ii) and (iii)

  3. Only (ii)

  4. Only (i)

  5. Only (iii)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lithium and magnesium show diagnol relationship. Some points of similarity are as follows: (i) Polarising power of Li+ and Mg+ are almost the same. (ii) Like Li, Mg decomposes water very slowly. (iii) LiCl and MgCl2 are deliquescent. (iv) Like Li, Mg does not form solid bicarbonates.

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