Redox Reaction
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Redox Reaction
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10 Questions

1. Phosphorus has the oxidation state of + 3 in
2. Acompound contains atoms of threeelements A - Band CIf the oxidation number of Ais +2 - B is +5 - and that of C is -“2 - the possibleformula of the compound is:
3. The oxidation number of phosphorus inpyrophosphoric acid is
4. The oxidation number of chromium inpotassium dichromate is
5. When Cl2 gas reacts with hot andconcentrated sodium hydroxide solution - theoxidation number of chlorine changes from:
6. Zn gives H 2 gas with H 2 SO4 and HCl but notwith HNO3 because
7. The loss of electron is termed as
8. Which of the following involves a redoxreaction?
9. The oxide - which cannot act as a reducingagent - is
10. Amixture of potassium chlorate - oxalic acidand sulphuric acid is heatedDuring the reactionwhich element undergoes maximum change inthe oxidation number?

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