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Subjects
Science CBSE
Class 7
Acids, bases and salts
Properties and pH scale
8.
Basics of acids and bases
Exercise condition:
4
m.
I)
If the substance contains high (OH-) concentration, that can be termed as__________.
Ion
Base
Acid
Element
None of these
II)
If the pH level of a substance is from 1 to 6, we can term it as _________ substance.
Neutral
Acid
Ion
Base
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