Home
Class 12
CHEMISTRY
How is sodium chromate converted into so...

How is sodium chromate converted into sodium dichromate in the manufacture of potassium dichromate from chromite ore?

A

By the action of concentrated sulphuric acid

B

By roasting with soda ash

C

By the action of sodium hydroxide

D

By the action of lime stone

Text Solution

Verified by Experts

The correct Answer is:
A
Required concentrated `H_2SO_4`
Promotional Banner

Topper's Solved these Questions

  • D AND F BLOCK ELEMENTS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|60 Videos

  • CO-ORDINATION COMPOUNDS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|40 Videos

  • ELECTROCHEMISTRY

    MARVEL PUBLICATION|Exercise Test your Grasp|50 Videos

Similar Questions

Explore conceptually related problems

How is sodium carbonate converted into sodium bicarbonate ?

Potassium dichromate is used

Potassium dichromate is used

The colour of potassium dichromate is due to

Which of the following is use of potassium dichromate ?

MARVEL PUBLICATION-D AND F BLOCK ELEMENTS -TEST YOUR GRASP
  1. How is sodium chromate converted into sodium dichromate in the manufac...

    Text Solution

    |

  2. The number of transition series in the periodic table are

    Text Solution

    |

  3. What is the general electronic configuration of transition elements

    Text Solution

    |

  4. Each transition series contains only 10 elements because

    Text Solution

    |

  5. Which one of the following refers to configuration of transition elem...

    Text Solution

    |

  6. The outer electronic configuration of chromium is

    Text Solution

    |

  7. Which of the following does NOT show different oxidation states?

    Text Solution

    |

  8. Calculate the oxidation number of Mn in KMnO(4) molecule.

    Text Solution

    |

  9. The properties of transition metals are in between the properties of ...

    Text Solution

    |

  10. Which transition metal shows the highest oxidation state ?

    Text Solution

    |

  11. Which of the following would be diamagnetic?

    Text Solution

    |

  12. The element present immediately below Zn in the periodic table in the ...

    Text Solution

    |

  13. Oxidation state of +1 is possible with

    Text Solution

    |

  14. For Sc (2 1), if both 3d and 4s electrons in involved in bonding, the ...

    Text Solution

    |

  15. Which one of the following forms a colourless solution in aqueous medi...

    Text Solution

    |

  16. Which of the following group belongs to transition series ?

    Text Solution

    |

  17. In transition elements, the differentiating electron enters into subs...

    Text Solution

    |

  18. Which of has the highest number of unpaired electrons?

    Text Solution

    |

  19. The range of wavelength of the visible light is

    Text Solution

    |

  20. Which of the following salt give coloured aqueous solution ?

    Text Solution

    |

  21. Sulphide ore of Zinc is

    Text Solution

    |