There is a mixture with sand and iron fillings. Write an activity for the separation of iron fillings from sand.

Thermite is a mixture of iron oxide and

Write an activity to show soap solution separates oil from water.

Write a method for the manufacturing of pig iron from the ore.

Sand from water is separated by

A mixture of saw dust and iron dust can be separated by the process of -

When dilute hydrochloric acid is added to iron fillings

Fill the following table and write the rule which you use in filling the table .

12 grams of a mixture of sand and calcium carbonate on strong heating produced 7.6 grams of residue. How many grams of sand is present in the mixture?