alleryતટસ્થ (NEUTRAL) દ્રાવણનું (25°C પર શુદ્ધ પાણી) pH મૂલ્ય કેટલું હોય છે:
A$7$
B$0$
C$14$
D$1$
Answer & Solution
Correct answer: A. $7$
pH 7 = તટસ્થ.
pH < 7 એસિડિક છે (0 સુધી); pH > 7 બેઝિક છે (14 સુધી).
25°C પર શુદ્ધ પાણીનું pH બરાબર 7 હોય છે.
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