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Subject :NSO    Class : Class 9

Study the given experimental set-up carefully and choose the correct observation.

I. Bubbles are produced in the beaker.
II. Air in the empty bottle contracts.
III. Water from the beaker moves up the delivery tube.

A I only
B III only
C II and III only
D None of the observations is correct.

Ans 1:

Class : Class 9
I think it's gonna be A

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