Set A Q. No. 11 Calculate the oxidation number of:
ii. Mn in MnO4
gi
OX
Cin HC204​

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

1+1=22×1=22-1=11-1=1duh

Hello!
your answer should be c

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