12
QuizMultiple Choice

Unit Test — Unit test

Question 12 • TX-Chemistry B-CR

Which describes the polarity in a water molecule?

Answer
A
partial negative charge on the oxygen atom because its electrons are pulled toward the hydrogen atoms
B
partial negative charge on the oxygen atom because it pulls electrons from the hydrogen atoms
C
partial positive charge on the oxygen atom because it pulls electrons from the hydrogen atoms
D
partial positive charge on the oxygen atom because its electrons are pulled toward the hydrogen atoms

Explanation

Oxygen is more electronegative than hydrogen, so it attracts the shared electrons in each O–H bond more strongly. This gives the oxygen atom a partial negative charge and the hydrogen atoms partial positive charges. Therefore, the correct choice is “partial negative charge on the oxygen atom because it pulls electrons from the hydrogen atoms.”

AI-written and checked against the verified answer.

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