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0. Chemical tests of four metals A, B, C, D shown the following results : * Only Band C react with 0.5 M HCI to give H2 gas * When B is added to a solution containing the ions of the other metals * A reacts with 6 M HN03, but D does not Arrange the metals in the increasing order as reducing agents.
B, C, A, D
C, A, D, 8
A, D, B, C
D, A, C, B
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