Sulphate salt metal oxide and SO(3)(or S...

Sulphate salt metal oxide and `SO_(3)(or SO_(2)+(1)/(2)O_(2))` on heating:

`K_(2)SO_(4)`

`CaSO_(4)`

`MgSO_(4)`

`(NH_(4))_(2)SO_(4)`

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The correct Answer is:

B, C

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Transition metal and their compounds are used as catalyst in industry and in biological system. For example, in the Contact Process, vanadium compounds in the +5 state (V_(2)O_(5) or VO_(3)^(-)) are used to oxidise SO_(2) to SO_(3) : SO_(2)+(1)/(2)O_(2) overset(V_(2)O_(5))(to) SO_(3) It is thought theta the actual oxidation process takes place in two stages. In the first step, V^(5+) in the presence of oxide ions converts SO_(2) to SO_(3) . At the same time, V^(5+) is reduced to V^(4+) . 2V^(5+)+O^(2-)+SO_(2) to 2V^(4+)+SO_(3) In the second step, V^(5+) is regenerated from V^(4+) by oxygen: 2V^(4+)+(1)/(2)O_(2) to 2V^(5+)+O^(2-) The overall process is, of curse, the sum of these two steps: SO_(2) +(1)/(2)O_(2) to SO_(3) Q. Transition metals and their compounds catalyse reactions because:

Transition metal and their compounds are used as catalyst in industry and in biological system. For example, in the Contact Process, vanadium compounds in the +5 state (V_(2)O_(5) or VO_(3)^(-)) are used to oxidise SO_(2) to SO_(3) : SO_(2)+(1)/(2)O_(2) overset(V_(2)O_(5))(to) SO_(3) It is thought thta the actual oxidation process takes place in two stages. In the first step, V^(5+) in the presence of oxide ions converts SO_(2) to SO_(3) . At the same time, V^(5+) is reduced to V^(4+) . 2V^(5+)+O^(2-)+SO_(2) to 2V^(4+)+SO_(3) In the second step, V^(5+) is regenerated from V^(4+) by oxygen: 2V^(4+)+(1)/(2)O_(2) to 2V^(5+)+O^(2-) The overall process is, of curse, the sum of these two steps: SO_(2) +(1)/(2)O_(2) to SO_(3) Q. Catalytic activity in transition metals depends on:

Transition metal and their compounds are used as catalyst in industry and in biological system. For example, in the Contact Process, vanadium compounds in the +5 state (V_(2)O_(5) or VO_(3)^(-)) are used to oxidise SO_(2) to SO_(3) : SO_(2)+(1)/(2)O_(2) overset(V_(2)O_(5))(to) SO_(3) It is thought thta the actual oxidation process takes place in two stages. In the first step, V^(5+) in the presence of oxide ions converts SO_(2) to SO_(3) . At the same time, V^(5+) is reduced to V^(4+) . 2V^(5+)+O^(2-)+SO_(2) to 2V^(4+)+SO_(3) In the second step, V^(5+) is regenerated from V^(4+) by oxygen: 2V^(4+)+(1)/(2)O_(2) to 2V^(5+)+O^(2-) The overall process is, of curse, the sum of these two steps: SO_(2) +(1)/(2)O_(2) to SO_(3) Q. Which of the following ion involved in the above process will show paramagnetism?

Transition metal and their compounds are used as catalyst in industry and in biological system. For example, in the Contact Process, vanadium compounds in the +5 state (V_(2)O_(5) or VO_(3)^(-)) are used to oxidise SO_(2) to SO_(3) : SO_(2)+(1)/(2)O_(2) overset(V_(2)O_(5))(to) SO_(3) It is thought thta the actual oxidation process takes place in two stages. In the first step, V^(5+) in the presence of oxide ions converts SO_(2) to SO_(3) . At the same time, V^(5+) is reduced to V^(4+) . 2V^(5+)+O^(2-)+SO_(2) to 2V^(4+)+SO_(3) In the second step, V^(5+) is regenerated from V^(4+) by oxygen: 2V^(4+)+(1)/(2)O_(2) to 2V^(5+)+O^(2-) The overall process is, of curse, the sum of these two steps: SO_(2) +(1)/(2)O_(2) to SO_(3) Q. During the course of the reaction:

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