Question

36. How is the impurity of iron present in several substances removed in industries ?
Long Answer Type Questions
17. What is a mixture ? Give five examples of mixtures. Why do we call sea-water a mixture ?
ries
Describe bo​

Answer 1

Answer:

36.IMPURITY OF IRON ARE REMOVED BY THE PROCESS OF ROASTING

Explanation:

Seawater is a mixture but water is not a mixture because when hydrogen and oxygen (both gases) combined they form water (a liquid) which is new substance so that's why water is not a mixture and seawater is the mixture because seawater is a salty which contains salt.

AND PLEASE MARK ME BRAINLIEST

Answer 2

Answer:

The impurity of iron present in several substances in the industries is removed using electromagnets. ... Iron objects stick to the electromagnet and are collected at a separate place, leaving behind other objects.

A combination of two or more substance that do not form a new substance is called mixture.Seawater is a mixture but water is not a mixture because when hydrogen and oxygen (both gases) combined they form water (a liquid) which is new substance so that's why water is not a mixture and seawater is the mixture because sea water is a salty which contains salt.

5 examples of mixture are:-

air

soil

milk

soap

sea water

Explanation:

hope it helps please market brainliest answer if you find it helpful...... as it takes too much time to type