RRB ALP 2013 প্রশ্ন 25
প্রশ্ন: ২৫°C তাপমাত্রায় একটি নিরপেক্ষ দ্রবণের pH:
বিকল্প:
A) 0
B) 1.0
C) 7.0
D) 1.4
Show Answer
উত্তর:
সঠিক উত্তর: C
BETA
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