महत्वपूर्ण पदार्थों का PH - मान ट्रिक से याद करें 🔥|pH Value Trick in Hindi|Railway Science Gk trick



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" The Logical Science "

Today's In This Video Alok sir ‪@thelogicalscience‬ Discussed About pH value Of Some important Materials which are always asked in Railway tech & Non Tech Exams.
I hope by this trick or a method you will be able to Answer This Type of Questions Very Quickly & Easily. (Tq)



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