railway RRB JE (CBT I + CBT II) Mock Test 2024 General Science Chemistry Basic Concepts of Chemistry

'pH' में 'p' का पूर्ण रूप क्या है?

1
प्रेसिपीटेशन
2
परसेंटेज
3
पोटेंसी
4
पोटेंज़
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