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प्रश्न
Which of the following statements is not true?
पर्याय
on passing H2S, through acidified K2Cr2O7 solution, a milky colour is observed.
Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis.
K2Cr2O7 solution in acidic medium is orange in colour.
K2Cr2O7 solution becomes yellow on increasing the pH beyond 7.
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उत्तर
Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis
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संबंधित प्रश्न
What is the geometry of chromate ion?
- Tetrahedral
- Octahedral
- Trigonal planer
- Linear
What is the molecular formula of chromyl chloride?
(A) CrO2Cl2
(B) CrOCl2
(C) CrCl3
(D) Cr2OCl2
What is the action of acidified potassium dichromate on - SO2
Draw structure of dichromate ion
What is the action of acidified potassium dichromate on - KI
In acid medium, potassium permanganate oxidizes oxalic acid to ____________.
Complete the following.
\[\ce{C6H5CH3 ->[acidified][KMnO4]?}\]
Complete the following.
\[\ce{MnO^-_4 + Fe^2+ ->?}\]
Complete the following.
\[\ce{Na2Cr2O7 + KCl ->?}\]
Why do the d-block elements form coloured compounds?
