Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science CBSE
Class 9
Is Matter Around Us Pure?
Matter: Pure and impure substances
13.
Purity of the matter
Exercise condition:
4
m.
Choose the best answer:
Kathir was seen at home, where distilled water is used for car and inverter batteries. He learned that mineral or tap water should not be used for this purpose. Why?
Distilled water contains minerals
Distilled water is pure
Tap water is pure
Tap water contains no salts
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!