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प्रश्न
How many moles of I2 are liberated when 1 mole of potassium dichromate react with potassium iodide?
पर्याय
1
2
3
4
MCQ
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उत्तर
3
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D-block Elements - Some Important Compounds of Transition Elements
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संबंधित प्रश्न
What is the geometry of chromate ion?
- Tetrahedral
- Octahedral
- Trigonal planer
- Linear
What is the action of acidified potassium dichromate on - KI
Which of the following statements is not true?
Permanganate ion changes to ____________ in acidic medium.
Describe the preparation of potassium dichromate.
Complete the following.
\[\ce{MnO^-_4 + Fe^2+ ->?}\]
Complete the following.
\[\ce{KMnO4 ->[\Delta][Red hot]?}\]
Complete the following.
\[\ce{Cr2O^2-_7 + I^- + H^+ ->?}\]
Explain why Cr2+ is strongly reducing while Mn3+ is strongly oxidizing.
Why do the d-block elements form coloured compounds?
