alleryغیر جانبدار محلول کا pH (خالص پانی 25°C پر) ہے:
A$7$
B$0$
C$14$
D$1$
Answer & Solution
Correct answer: A. $7$
pH 7 = غیر جانبدار۔ pH < 7 تیزابی ہے (نیچے 0 تک)؛ pH > 7 بنیادی ہے (14 تک)۔ 25°C پر خالص پانی کا pH = 7 بالکل ہے۔
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