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If 1 ml of water contains 20 drops. Then no. of molecules in a drop of water isA. `6.023xx10^(23)`B. `1.376xx10^(26)`C. `1.673xx10^(21)`D. `4.346xx10^(20)` |
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Answer» Correct Answer - C 1 mL of water = 1 g of water `:.` 20 drops of `H_(2)O = 1g` 1 drop of `H_(2)O = (1)/(20)g=0.05g` `=(0.05)/(18)`mole `=(0.05)/(18)xx6.23xx10^(23)` molecules `=1.673xx10^(21)` molecules. |
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