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.
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 4:
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Manas Malla
from
Visakha Valley School, Visakhapatnam
Class : Class 8
pH value are the value used to determine wheather a solution is acid or basic in nature
Acids= pH<7
Bases= pH>7
Neutral= pH=7