Water can be separated from alcohol water mixture by
1). decantation
2). evaporation
3). distillation
4). sublimation
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1. Tear gas used by the police to disperse the mob contains
2. Which of the inert gases can form compounds?
3. Major gaseous pollutant of the thermal power station is
4. Which of the following has least negative electron gain enthalpy?
5. The gas used for artificial fruit ripening of green fruit is –
6. The gas used for filling weather balloons is
7. Detergents clean surfaces on the principle of