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Question
Which of the following statements is not true?
Options
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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Solution
Na2Cr2O7 is preferred over K2Cr2O7 in volumetric analysis
RELATED QUESTIONS
What is the molecular formula of chromyl chloride?
(A) CrO2Cl2
(B) CrOCl2
(C) CrCl3
(D) Cr2OCl2
Draw structure of dichromate ion
Draw the structure of the chromate ion.
Write observed electronic configuration of elements from first transition series having half
filled d-orbitals.
What is the action of acidified potassium dichromate on - KI
How many moles of I2 are liberated when 1 mole of potassium dichromate react with potassium iodide?
Complete the following.
\[\ce{MnO^-_4 + Fe^2+ ->?}\]
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?
