Teaching UP TGT Mock Test Series 2025 General Science Chemistry Structure of Atom

પાણીના અણુમાં, હાઇડ્રોજનના દળ અને ઓક્સિજનના દળનો ગુણોત્તર હંમેશા ________ હોય છે.

1
7:1
2
8:1
3
1:7
4
1:8
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