When `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` and soluble chloride such as KCl :A. red vapours of `CrO_(2)Cl_(2)` are evolvedB. `Cl^(-)` ion is oxidized to `Cl_(2)` gasC. `CrCl_(3)` is formedD. `Cr_(2)O_(7)^(2-)` ion is reduced to green `Cr^(3+)` ion

When `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` and soluble

1.	When `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` and soluble chloride such as KCl :A. red vapours of `CrO_(2)Cl_(2)` are evolvedB. `Cl^(-)` ion is oxidized to `Cl_(2)` gasC. `CrCl_(3)` is formedD. `Cr_(2)O_(7)^(2-)` ion is reduced to green `Cr^(3+)` ion
Answer» Correct Answer - A `KCl +H_(2)SO_(4)+K_(2)Cr_(2)O_(7) to CrO_(2)Cl_(2)` (Chromyl Chloride test)

Discussion

No Comment Found

Related InterviewSolutions

Which of the following statements is/are correct for chromyl chloride test ?A. Formation of chromyl chloride vapourB. Liberation of chlorine gasC. Formation of lead chromateD. Formation of reddis-brown vapour
Which reagent is used to remove `SO_(4)^(2-)` or `Cl^(-)` from water ?A. NaOHB. `Pb(NO_(3))_(2)`C. `BaSO_(4)`D. `KOH`
When solution of KCl, KF and KBr are treated with `I_(2)` ?A. `Cl_(2) " and" Br_(2)` are evolvedB. `Cl_(2)` is evolvedC. `Cl_(2),F_(2) " and" Br_(2)` are evolvedD. None of these
Solution of a salt in dilute `H_(2)SO_(4)` or acetic and produces deep blue colour with starch iodide solution. The salt contains :A. `Br^(-)`B. `I^(-)`C. `Cl^(-)`D. `NO_(2)^(-)`
Which of the following combines with Fe(II) ions to form a brown complex ?A. `N_(2)O`B. `NO`C. `N_(2)O_(5)`D. `N_(2)O_(4)`
Which of the following anion(s) is/are easily removed from aqueous solution by precipitation ?A. `Cl^(-)`B. `SO_(4)^(2-)`C. `NO_(3)^(-)`D. `CO_(3)^(2-)`
A test tube containing a nitrate and another containing a bromide and `MnO_(2)` are treated with concentrated `H_(2)SO_(4)`. The reddish brown fumes evolved are passed through water. The water will be coloured by :A. the nitrateB. the bromideC. bothD. none of the two
In brown ring complex, if number of ambidentate is/are "a" and oxidation state of iron is/are "b" then a+b=?
Heating which of the following salts in a dry test tube may cause a change in their colour ?A. `ZnCO_(3)` (white)B. `Co(NO_(3))_(2). 6H_(2)O` (red)C. `FeSO_(4).6H_(2)O` (green)D. `MnSO_(4)` (faint pink)
Match List-I with List-II and select the correct answer using the codes given below the lists : A. `{:(P,Q,R,S),(1,3,2,4):}`B. `{:(P,Q,R,S),(3,2,4,1):}`C. `{:(P,Q,R,S),(4,3,2,1):}`D. `{:(P,Q,R,S),(4,1,2,3):}`

When `K_(2)Cr_(2)O_(7)` is heated with conc. `H_(2)SO_(4)` and soluble chloride such as KCl :A. red vapours of `CrO_(2)Cl_(2)` are evolvedB. `Cl^(-)` ion is oxidized to `Cl_(2)` gasC. `CrCl_(3)` is formedD. `Cr_(2)O_(7)^(2-)` ion is reduced to green `Cr^(3+)` ion

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment