alleryএটা প্ৰশম দ্ৰৱৰ (25°C-ত বিশুদ্ধ পানী) pH হৈছে:
A$7$
B$0$
C$14$
D$1$
Answer & Solution
Correct answer: A. $7$
pH 7 = প্ৰশম।
pH < 7 হ'লে আম্লিক (0 লৈকে); pH > 7 হ'লে ক্ষাৰকীয় (14 লৈকে)।
25°C-ত বিশুদ্ধ পানীৰ pH ঠিক 7 হয়।
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