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Multiple Choice Question with Only One Choice Correct
A cube of ice is floating in water contained in a vessel. When the ice melts, the level of water in the vessel
(a) rises
(b) falls
(c) remains unchanged
(d) falls at first and then rises to the same height as before

Chemistry

True or False :
The -OCH₃ group belongs to +I group.

Mathematics

Value of x for sin {cot^-1 (x + 1)} = cos (tan^-1 x) is

(a)	-1/2	(b)	0
(c)	1/2	(d)	1

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