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Ananya from Delhi Public School, Meerut
Subject :NSO    Class : Class 7
What are pH values?

Ans 1:

Julian Thomas Abraham from Madhava Kripa school , Manipal
Class : Class 8
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:

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.

Ans 3:

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:

ANSH from DAYANAND PUBLIC SCHOOL, SHIMLA
Class : Class 8
ph is the negative logarithm of hydrogen ion.

Ans 5:

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

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