alleryএকটি নিরপেক্ষ দ্রবণের (25°C তাপমাত্রায় বিশুদ্ধ জল) pH হলো:
A$7$
B$0$
C$14$
D$1$
Answer & Solution
Correct answer: A. $7$
pH 7 = নিরপেক্ষ।
pH < 7 হলো আম্লিক (0 পর্যন্ত); pH > 7 হলো ক্ষারীয় (14 পর্যন্ত)।
25°C তাপমাত্রায় বিশুদ্ধ জলের pH ঠিক 7।
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