AP EAMCET2015Chemistryp Block Elements (Group 15, 16, 17 & 18)
Assertion (A) : Noble gases have very low boiling points. Reason (R) : All noble gases have general electronic configuration of ns^2 np^6 (except He).
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- B(A) is false but (R) is true
- C(A) is true but (R) is false
- DBoth (A) and (R) are true and (R) is the not the correct explanation of (A)
Correct answer
D. Both (A) and (R) are true and (R) is the not the correct explanation of (A)
Step-by-step solution
Boiling points of noble gases are low due to only acting weak van der Waal’s forces of attraction between the atoms.