Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2001
Exam
AIIMS
Year
2001
Subject
Chemistry
Chapter
Chemical Bonding and Molecular Structure

AIIMS 2001 · Chemistry · Chemical Bonding and Molecular Structure

Assertion : Na_2 SO_4 is soluble in water while BaSO_4 is not....

Assertion : Na2SO4\mathrm{Na}_2 \mathrm{SO}_4 is soluble in water while BaSO4\mathrm{BaSO}_4 is not. Reason : Lattice energy of BaSO4\mathrm{BaSO}_4 exceeds its hydration energy.

Options

  1. AIf both Assertion and Reason are true and Reason is the correct explanation of Assertion.
  2. BIf both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
  3. CIf Assertion is true but Reason is false.
  4. DIf Assertion is false but Reason is true.

Correct answer

A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion.

Step-by-step solution

The large sized sulphate anion (SO42−)\left(\mathrm{SO}_4{ }^{2-}\right) is stabilised better by a large sized cation. So the stability of sulphates down the group increases so the lattice energy is more in BaSO4\mathrm{BaSO}_4 than in Na2SO4\mathrm{Na}_2 \mathrm{SO}_4.
Practice Chemical Bonding and Molecular Structure on Quantrex Academy →

More from Chemical Bonding and Molecular Structure

Which of the following molecules shows sp^3d hybridisation? MHT CET Medical 2026Identify a pair of molecules having zero dipole moment. MHT CET Medical 2026Identify the correct decreasing order of lattice enthalpy for metal fluorides from… MHT CET Medical 2026Which of the following bonds is expected to be the most polar? MHT CET Medical 2026Which of the following species is paramagnetic? MHT CET Medical 2026What is the number of bonding and antibonding electrons, respectively, in Li_2 molecule? MHT CET Medical 2026What is the number of electrons in bonding molecular orbitals and antibonding molecular… MHT CET Medical 2026Identify the hybridization in BF_3 molecule. MHT CET Medical 2026 Full Chemical Bonding and Molecular Structure list All AIIMS PYQs