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A metal oxide has the formula Z(2)O(3) ....

A metal oxide has the formula `Z_(2)O_(3)` . It can be reduced by hydrogen to give free metal and water . 0.1596 g of the metal oxide requires 6 mg of hydrogen for complete reduction . The atomic weight of the metal is

A

27.9

B

159.6

C

79.8

D

55.8

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