Home
Class 11
CHEMISTRY
When washing soda is heated...

When washing soda is heated

A

CO is released

B

`CO+CO_(2)` is released

C

`CO_(2)` is released

D

water vapor is released

Text Solution

Verified by Experts

The correct Answer is:
D
Washing soda is `Na_(2)CO_(3). H_(2)O` on heating, the monohydrate changes into the anhydrous form which does not decompose on further heating even to redness. It is the amorphous powder and called soda ash. It melts at `8.52^(@)C`
`Na_(2)CO_(3).10H_(2)Ooverset("Below" 373K)hArrNa_(2)CO_(3).H_(2)O^(-)+9H_(2)O`
`Na_(2)CO_(3).H_(2)Ooverset("Above" 373K)hArrNa_(2)CO_(3)+H_(2)O`
Promotional Banner

Topper's Solved these Questions

  • THE S BLOCK ELEMENTS

    R SHARMA|Exercise Question Bank (Level- IV)|10 Videos

  • THE P BLOCK ELEMENTS

    R SHARMA|Exercise Archives|40 Videos

  • THERMODYNAMICS

    R SHARMA|Exercise Archives|59 Videos

Similar Questions

Explore conceptually related problems

When washing soda is treated with hydrochloric acid, it gives off a colourless gas with a lot of effervescence. Identify the gas.

How would you distinguish between baking powder and washing soda by heating ?

" The number of water molecules are associated with washing soda is "X" ,then "X-1=

R SHARMA-THE S BLOCK ELEMENTS-ARCHIVES
  1. In which of the following is the hydration energy higher than the latt...

    Text Solution

    |

  2. The product obtained on fusion of BaSO(4) and Na(2)CO(3) is

    Text Solution

    |

  3. When washing soda is heated

    Text Solution

    |

  4. Baking soda is

    Text Solution

    |

  5. NaOH is prepared by the

    Text Solution

    |

  6. The correct sequence of increasing covalent character is represented b...

    Text Solution

    |

  7. The correct order of solubility of the sulphates of alkaline earth met...

    Text Solution

    |

  8. Which of the following is not an ore of magnesium?

    Text Solution

    |

  9. Photoelectric effect is the maximum in

    Text Solution

    |

  10. Which of the following is monovalent?

    Text Solution

    |

  11. Superoxide of potassium is

    Text Solution

    |

  12. Carnallite on electrolysis gives

    Text Solution

    |

  13. On dissolving moderate amount of sodium metal in liquid ammonia at low...

    Text Solution

    |

  14. Sodium metal reacts with Al(2)O(3) at high temperature to give a sodiu...

    Text Solution

    |

  15. Aqueous NaCl solution is electrolyzed using platinum electodes. What i...

    Text Solution

    |

  16. What are the products formed when Li(2)CO(3) undergoes decomposition?

    Text Solution

    |

  17. What is the reaction occuring at the anode in Down's process for the e...

    Text Solution

    |

  18. In the Solvary process of manufacture of Na(2)CO(3). the byproducts ar...

    Text Solution

    |

  19. In electrolysis of NaCl when Pt electrode is taken H(2) is liberated a...

    Text Solution

    |

  20. When sodium is treated with sufficient oxygen/air, the product obtaine...

    Text Solution

    |