10ml of 1 N HCI , 25 ml of 2 N H_2SO_4 and 40 ml of X N HNO, are mixed and made up to 2000 ml. 100 ml of t

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Q 3142123033.     10ml of 1 N HCI , 25 ml of 2 N H_2SO_4 and 40 ml of X N HNO, are mixed and made up to 2000 ml. 100 ml of this solution required 30 ml of NaOH taken from a solution containing 4 g of NaOH in 250 ml of solution. What is the value of X?

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