Reason (R): They have non zero dipole moments and so they are polar molecules.
A. Both (A. and (R) are correct and (R) is the correct explanation of(A).
B. Both (A) and (R) are correct but (R) is not the correct explanation of(A).
C. (A) is correct but (R) is wrong.
D. (A) is wrong but (R) is correct.
Answer:A
Reason (R): They have non zero dipole moments and so they are polar molecules.
A. Both (A. and (R) are correct and (R) is the correct explanation of(A). B. Both (A) and (R) are correct but (R) is not the correct explanation of(A). C. (A) is correct but (R) is wrong. D. (A) is wrong but (R) is correct.