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InterviewSolution
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The volumes of `4N HCI` and `10 N HCI` required to make 1 litre of `6N HCI` areA. `0.75` litre of `10 N HCI` and `0.25` litre of `4N HCI`B. `0.25` litre of `4N HCI` and `0.75` litre of `10N HCI`C. `0.67` litre of `4N HCI` and `0.33` litre of `10N HCI`D. `0.80` litre of `4N HCI` and `0.20` litre of `10 N HCI` |
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Answer» Correct Answer - B Let volume of 4 N HCl used = `upsilon mL` therefore Volume of `10N HCl` used `= (1000 - upsilon) mL` `NxxV = N_(1)V_(1)+N_(2)V_(2)` `6xx1000=4xxupsilon+10(1000-upsilon)` `6upsilon = 10000-6000` `6 upsilon = 4000` `upsilon = (4000)/(6) = 666.7 mL` `=0.67 L` Vol. of 4 NHCl used `= 0.67 L` Vol. of 10 NHCl used `= 1-0.67 = 0.33 L` |
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