Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • The solubility of carbonates decreases down the magnesium group due to:</

The solubility of carbonates decreases down the magnesium group due to:

Option: 1

 Increase in hydration energies of cation

 


Option: 2

Decrease in lattice energies of solids

 


Option: 3

Both a and b

 


Option: 4

Decrease in hydration energies of cation


Answers (1)

best_answer

As we learn

Solubility of carbonates of alkaline metals -

Decreases down the group. The insoluble metal carbonates dissolves in the presence of CO_{2}

MgCO_{3}(s)+CO_{2}(g))+H_{2}O(l)\rightarrow Mg (HCO_{3})_{2}(aq.)\rightleftharpoons Mg^{2}^{+}(aq.))+2HCO_{3}^{-}(aq.)

-

The solubility of an ionic compound in water decreases with increase in lattice energy but increase with hydration energies

In alkaline earth metal group, the hydration energy of cation decreases from the top to bottom with increase in size of cation. However the lattice energy remains almost unchanged.

Therefore, option (4) is correct.

Posted by

Divya Prakash Singh

View full answer

Similar Questions

Latest Question