M.Sc. Bio-Physics (PU-CET P.G) 2022 Panjab University Entrance Exam With Answers

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64.

A polar molecule

A: Is slightly negative at one end and slightly positive at the other end
B: Has an extra electron, giving it a negative charge
C: Has an extra neutron, making it weigh more
D: Has covalent bonds

The answer is: A