Home
Class 11
CHEMISTRY
Identify the reactions in which dichroma...

Identify the reactions in which dichromate acts as an oxidising reagent .
`I . Cr_(2)O_(7)^(2)+6Fe^(2+)+14H^(+)rarr 2Cr^(3+) +6Fe^(3+)+7H_(2)O`
`II. Cr_(2)O_(7)^(2-)+2OH^(-1) rarr2CrO_(4)^(2-)+H_(2)O`
`III. Cr_(2)O_(7)^(2-)+6I+14H^(+)rarr 2Cr^(3+)+3I_(2)+7H_(2)O`
`IV. Na_(2)Cr_(2)O_(7)+2KCI rarr K_(2)Cr_(2)O_(7)+2NaCI`

Text Solution

Verified by Experts

The correct Answer is:
A-T; B-PQRS; C-RST; D-PQRST
Promotional Banner

Similar Questions

Explore conceptually related problems

Structure of Cr_(2)O_(7)^(2-) has

Cr_(2)O_(7)^(2-) + I^(-) rarr I_(2)+Cr^(3+) E_(cell)^(@)=0.79V,E_(Cr_(2)O_(7)^(2-))^(@)=1.33V . Then E_(I_(2))^(@)=?

In the reaction the stoichiometry coefficients of Cr_(2)O_(7)^(2-) , NO_2^(-) and H^(+) respectively are Cr_(2)O_(7)^(2-) +NO_(2)^(-) +H^(+) rarr Cr^(3+) +NO_(3)^(-) +H_(2)O

In the reaction the stoichiometry coefficients of Cr_(2)O_(7)^(2-), NO_(2)^(-) and H^(+) respectively are Cr_(2)O_(7)^(2-)+NO_(2)^(-)+H^(+)rarrCr^(3+)+NO_(3)^(-)+H_(2)O

K_(2)Cr_(2)O_(7) + HCl rarr KCl + CrCl_(3) + Cl_(2) + H_(2)O . How many moles of HCl reacts with one mole of K_(2)Cr_(2)O_(7) ?

The value of n in the following equation if balanced Cr_(2)O_(7)^(3+)+14H^(+)+nFe^(2+) to 2Cr^(3+)+nFe^(3+)+7H_(2)O

Which substance serves as a reducing agent in the following reactions ? 14H^(+) +Cr_(2)O_(7)^(2-) +3Ni rarr 2Cr^(3+) + 7H_(2)O+3Ni^(2+),

Number of Cr-O sigma bonds in dichromate in Cr_(2)O_(7)^(2-) is

CrO_(4)^(2-) (yellow) chages to Cr_(2)O_(7)^(2-) (orange) in p^(H) = y . Hence x and y are