Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas JEE Main2020Chemistrys Block ElementsPractice

All sulphates of alkaline earth metals are not soluble in water. Which is the right order for their solubility

Options

  1. AM g > C a > B a > B e > S r
  2. BB e > M g > C a > S r > B a
  3. CB e > C a > M g > B a > S r
  4. DM g > B e > B a > C a > S r

Correct answer

B. B e > M g > C a > S r > B a

Step-by-step solution

B e > M g > C a > S r > B a On moving down the group lattice energy remains almost constant as the sulphate is so big that small increase in the size of the cations from Be to Ba does not make any difference. However the hydration energy decreases from B e + 2 to B a + 2 . This causes decrease in the solubility of the sulphates as the ionic size increases.

Practice s Block Elements on Quantrex Academy →

More from s Block Elements

First and second ionization enthalpies of lithium are 520 kJ mol ⁻¹ and 7297 kJ mol ⁻¹ respectively. Energy required to convert 3.5 mg lithium (g) into Li ²⁺ (g) [ Li(g) Li ²⁺ (g) 2026The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is: 2026Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R : Assertion (A) : BeCl 2 and MgCl 2 produce characteristic flame Reason (R) : T 2023Be ( OH ) 2 reacts with Sr ( OH ) 2 to yield an ionic salt. Choose the incorrect option related to this reaction from the following 2023In the given reaction cycle X , Y and Z respectively are 2023The density of alkali metals is in the order 2023Alkali metal from the following with least melting point is 2023Mg NO 3 2 . XH 2 O and Ba NO 3 2 . YH 2 O , represent formula of the crystalline forms of nitrate salts. Sum of X and Y is....... 2023 Full s Block Elements list All NTA Abhyas JEE Main PYQs