The oxidation state of I in H₄IO₆⁻ is
The oxidation state of I in H₄IO₆⁻ is
Options
(a) 1 (b) -1 (c) 7 (d) 5
Correct Answer:
7
Explanation:
No explanation available. Be the first to write the explanation for this […]
Hydrogen and Redox Reactions
The number of moles of acidified KMnO₄ required to oxidise one mole
The number of moles of acidified KMnO₄ required to oxidise one mole of ferrous oxalate (FeC₂O₄) is
Options
(a) 5 (b) 3 (c) 0.6 (d) 1.5
Correct Answer:
0.6
Explanation:
No explanation available. […]
When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation
When KMnO₄ reacts with KBr in alkaline medium gives bromate ion. Then oxidation state of Mn changes from +7 to
Options
(a) 6 (b) 4 (c) 3 (d) 2
Correct Answer:
4
Explanation: […]
The change in oxidation state of sulphur when sulphur dioxide is passed
The change in oxidation state of sulphur when sulphur dioxide is passed in an acidified K₂Cr₂O₇ solution is from
Options
(a) 4 to 0 (b) 4 to 2 (c) 4 to 6 (d) […]
For decolourization of 1 mole of KMnO₄, the moles of H₂O₂ required is
For decolourization of 1 mole of KMnO₄, the moles of H₂O₂ required is
Options
(a) 1/2 (b) 3/2 (c) 5/2 (d) 7/2
Correct Answer:
5/2
Explanation:
No explanation available. Be the first to […]
The oxidation number of oxygen in O₂PtF₆ is
The oxidation number of oxygen in O₂PtF₆ is
Options
(a) zero (b) 1/2 (c) 1 (d) -1/2
Correct Answer:
1/2
Explanation:
No explanation available. Be the first to write the explanation for this […]
MnO₄²⁻ (1 mole) in neutral aqueous medium is disproportionated to
MnO₄²⁻ (1 mole) in neutral aqueous medium is disproportionated to
Options
(a) 2/3 mole of MnO₄⁻ and 1/3 mole of MnO₂ (b) 1/3 mole of MnO₄⁻ and 2/3 mole of MnO₂ (c) 1/3 […]
How many moles of iodine are liberated when 1 mole of potassium dichromate
How many moles of iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
3
Explanation:
Iodine is liberated […]
A gas z is bubbled through a solution containing x⁻ and y⁻. If the reduction
A gas z is bubbled through a solution containing x⁻ and y⁻. If the reduction potential are in the order x > y >z, then
Options
(a) y will oxidise z and not […]
The volume of 0.05 M KMnO₄ solution required to oxidized completely 2.70g
The volume of 0.05 M KMnO₄ solution required to oxidized completely 2.70g of oxalic acid (H₂C₂O₄) in acidic medium will be
Options
(a) 120 cm³ (b) 240 cm³ (c) 360 cm³ (d) 480 […]