alleryଏକ ପ୍ରଶମିତ ଦ୍ରବଣର pH (25°C ରେ ବିଶୁଦ୍ଧ ଜଳ) ହେଉଛି:
A$7$
B$0$
C$14$
D$1$
Answer & Solution
Correct answer: A. $7$
pH 7 = ପ୍ରଶମିତ (neutral)।
pH < 7 ଅମ୍ଳୀୟ (0 ପର୍ଯ୍ୟନ୍ତ); pH > 7 କ୍ଷାରୀୟ (14 ପର୍ଯ୍ୟନ୍ତ)।
25°C ରେ ବିଶୁଦ୍ଧ ଜଳର pH = ଠିକ୍ 7 ଅଟେ।
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