pH is the negative logarithm of H+ ions.
A substance having <7 pH is a Base
A substance having >7 pH is an Acid
Exact pH 7 is a neutral substance
Ans 2:
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ANMOL VERMA
from
NIRMALA CONVENT SENIOR SECONDARY SCHOOL KATHGODAM, Haldwani
Class : Class 9
-pH stands for potenz Hydrogen, pH value indicates whether the substance is acidic, basic of neutral.
- pH less than 7 is acidic
-pH greater than 7 is basic
- pH equal to 7 is neutral ( neither acidic nor basic)
Ans 3:
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riddhikaa
from
sri kumaran public school, Bengaluru
Class : Class 7
pH scale is a numerical representation of acidity and basicity of the substances. It varies from 1 to 14. The solutions with a pH value less than 7 are referred to as bases and those with a pH value of 7 are to as neutral.