Home Chemistry Electrochemistry General Red hot carbon will remove oxygen from the o…
Chemistry Electrochemistry General Single Correct MCQ
Published on: August 13, 2026

Red hot carbon will remove oxygen from the oxide AO and BO but not from MO, while B will remove oxygen from AO. The activity of metals A, B and M in decreasing order is

A
A > B > M
B
B > A > M
C
M > B > A
D
M > A > B

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The correct answer is:
C

M is more reactive than carbon and B is more reaitive than A. Also both B and A are less reactive than C.

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