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Which of the following statements are co...

Which of the following statements are correct ?

A

S - S bond is present in

B

In peroxosulphuric acid (`H_2SO_(5)`) sulphur is in (+6) oxidation state.

C

Iron powder along with `Al_(2)O_(3)` and `K_2O` is used as a catalyst in the preparation of `NH_3` by Haber's process.

D

Change in enthalpy is positive for the preparation of `SO_(3)` by catalytic oxidation of `SO_(2)`

Text Solution

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The correct Answer is:
A, B, D
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