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Which of the following is formed when CO...

Which of the following is formed when `CO_(2)` gas is passed through an aqueous solution of sodium chromate ?

A

`Cr(OH)_3` is precipitated

B

Yellow solution of `Cr(CO_3)_3` is formed

C

Orange solution of `Na_2Cr_2O_7` is formed

D

No reaction

Text Solution

Verified by Experts

The correct Answer is:
C
`2Na_2CrO_4 + 2CO_2 + H_2O to Na_2Cr_2O_7 + 2NaHCO_3`.
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -NCERT BASED QUESTIONS (Compounds of Transitional Elements)
  1. How is sodium chromate converted into sodium dichromate in the manufac...

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  2. Which of the following gases turns the acdified potassium dischromate ...

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  3. Which of the following is formed when CO(2) gas is passed through an a...

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  4. Acidified solution of chromic acid on treatment with hydrogen peroxide...

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  5. In aqueous solution Cr^(2+) is stronger reducing agent than Fe^(2+). T...

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  6. The correct order of increasing oxidising power in the series is

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  7. The correct formula of permaganic acid is

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  8. Why Mn^(2+) compounds are more stable than Fe^(2+) compounds towards o...

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  9. Potassium permanganate acts as an oxidant in neutral, alkaline as well...

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  10. Which of the oxide of manganese is amohoteric

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  11. MnO(4)^(-) reacts with Br^(-) in alkaline pH to give

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  12. Which of the following statement is incorrect for KMnO4

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  13. Mn^(2+) can be converted into Mn^(7+) by reacting with

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  14. Formula of thiosulphate, manganate and arsenate respectively are

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  15. The number of moles of KMnO(4) that will be needed to react completely...

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  16. When a brown compound of Mn (A) is teated with HCl, it gives a gas (B)...

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  17. On addition of small amoung of KMnO(4) to concentrated H(2)SO(4), a gr...

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  18. When KMnO(4) solution is added to oxalic acid solution , the decolouri...

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  19. KMnO(4) acts as an oxidising agent in acidic medium. The number of mol...

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  20. KMnO(4) acts as an oxidising agent in alkaline medium when alkaline KM...

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