Question

Assertion :He and Ne do not form clatharates. Reason: They are difficult to polarise due to smaller size.

Read the above assertion and reason and choose the correct option regarding it.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is true but Reason is false
• D. Assertion is false but Reason is true

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

When water is allowed to freeze in the presence of Ar, Kr or Xe under pressure, atoms of noble gas get trapped in the crystal lattice of ice giving clathrates corresponding to the composition, $8G.46H_{2}O$. These clathrates are also known as the noble gas hydrates. But due to smaller size (low boiling point) and small polarization, He and Ne do not form such compounds.