The number of electrons exchanged when \( \mathrm{KMnO}_{4} \) \( \mathrm{P} \) reacts with \( \...

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The number of electrons exchanged when \( \mathrm{KMnO}_{4} \)
\( \mathrm{P} \)
reacts with \( \mathrm{H}_{2} \mathrm{O}_{2} \) is equal to that of
W
(1) s-electrons in \( \mathrm{Ca}( \) at.no:20)
(2) p-electrons in neon (at.no:10)
(3) The number of electrons exchanged is equal to that of d-electrons in chromium (at.no:24)
(4) f-electrons in lanthanum (at.no:57)
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