Home
SELF STUDY
BrowsePracticeTestsPlaylistDoubts & solutionsFree live classesOther courses

Family and Friends

Quick practice

Question 1 of 5

Karim brings water from the pond to drink. He mixes alum in water after bringing it daily.He does that ?

A

Does to depress mild suspended abrasions.

B

Turns hard water into soft water.

C

To heat water.

D

To eliminate microbes present in water.

Get unlimited practice with Teaching Superpack subscription

pick

Boost your performance with adaptive practice tests

pick

Practice every concept in the syllabus

pick

Compare your speed and accuracy with your peers

pick

Download the app and practice on the go