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Question

During an experiment the teacher gave 100 mL aqueous solution of acetone each having the concentration 10% (v/v) to Neeshu, Shruti and Shubham separately. They were asked to make the concentration 50%(v/v). Neeshu added 90 mL of acetone, Shubham added 80 mL of acetone and 10 mL of water and Shruti added 90 mL of acetone and 10 mL of water to their given sample. The solution of required concentration was prepared by

एक प्रयोग के दौरान शिक्षक ने नीशू, श्रुति तथा शुभम को पृथक रूप से एसीटोन का 100 mL जलीय विलयन दिया जिसकी प्रत्येक की सान्द्रता 10% (v/v) है। उन्हें 50%(v/v) सान्द्रता वाला विलयन बनाने को कहा गया। अपने दिये गये नमूने में नीशू ने 90 mL एसीटोन मिलाया, शुभम ने 80 mL एसीटोन तथा 10 mL जल मिलाया तथा श्रुति ने 90 mL एसीटोन तथा 10 mL जल मिलाया। किसके द्वारा आवश्यक सान्द्रता वाला विलयन बनाया गया?

A
Shubham

शुभम
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B
Neeshu

नीशू
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C
Shruti

श्रुति
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D
Both Neeshu and Shubham

नीशू तथा शुभम दोनों
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Solution

The correct option is C Shruti

श्रुति

Solution

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