The sum of the zeros of the polynomial x2 +3x-7=0 is (a)3 (b) -3 (c) 7 (d) -7
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How many moles of hydrogen gas will be liberated during reaction with 1 mole of Mg with HCl.
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The measure of two adjacent side of a rectangle is in the ratio 11:10. if the perimeter of the rectangle is 84 CM then find its length and breadth