A mixture of mustard oil and water can be separated by

A mixture of ammonium chloride and sand can be separated by

A U-tube contains water and methylated spirit separated by mercury. The mercury columns in the two arms are in level with 10.0 cm of water in one arm and 12.5 cm of spirit in the other. What is the specific gravity of spirit?

Water from a sprinkler comes out with a constant velocity u in all the directions. What is the maximum area of the grassland that can be watered at any time?

Discuss how permanent hardness of water can be removed.

Two water taps together can fill a tank in 9(3/8) hours.The tap of larger diameter takes 10 hours less than the smaller one to fill the tank separately.Find the time in which each tap can separately fill the tank.

Two water taps can fill together a tank in 6h 40m.The larger tap takes 3h less than the smaller to fill the tank separately.Find the time in which each tap can separately fill the tank.

Classify, each of the following as a homogeneous or heterogeneous mixture, Soda water, wood, air, soil, vinegar, filtered tea.