Home
Class 11
CHEMISTRY
A piece of magnesium ribbon was heated t...

A piece of magnesium ribbon was heated to redness in an atmosphere of `N_2` and then treated with `H_2O`, the gas evolved is:

A

ammonia

B

hydrogen

C

nitrogen

D

oxygen

Text Solution

Verified by Experts

The correct Answer is:
A

`3Mg +N_2 rarr Mg_3N_2 overset(6H_2O)to 3Mg(OH)_2 + 2NH_3`
Promotional Banner

Topper's Solved these Questions

  • S-BLOCK ELEMENTS

    BRILLIANT PUBLICATION|Exercise LEVEL-II (ASSERTION-REASON TYPE)|20 Videos
  • S-BLOCK ELEMENTS

    BRILLIANT PUBLICATION|Exercise LEVEL-III (Single Correct Answer Type)|8 Videos
  • S-BLOCK ELEMENTS

    BRILLIANT PUBLICATION|Exercise LEVEL-I|100 Videos
  • REDOX REACTIONS

    BRILLIANT PUBLICATION|Exercise LEVEL -III|50 Videos
  • SOME BASIC CONCAPTS OF CHEMISTRY

    BRILLIANT PUBLICATION|Exercise LEVEL-III (Linked Comprehension Type)|6 Videos

Similar Questions

Explore conceptually related problems

When carbon is heated with con. H_2SO_4 the gas liberated is/are:

When F_2 gas reacts with H_2O , it forms

Draw the structure of H_2O_2 in gas phase.

When a white crystalline compound 'X' is heated with K_(2)Cr_(2)O_(7) and concentrated H_(2)SO_(4) a red dish brown gas 'A' is evolved. On passing 'A' into caustic soda solution, a yellow coloured solution of 'B' is obtained. Neutralising the solution 'B' with acetic acid and on subsequent addition of lead acetate a yellow precipitate C is obtained. When 'X' is heated with NaOH a colourless gas is evolved and on passing this a gas into K_(2)HgI_(4) (Nessler's reagent) solution a reddish brown precipitate D is formed. Identify '(A), (B), (C), (D) and X. Write equations for the reactions involved.

A salt (A) when heated with K_2 Cr_2 O_7 and conc. H_2 SO_4 liberates a gas which is absorbed in NaOH solution. The NaOll solution turns yellow. When this solution is acidified with acetic acid and lead acetate solution is added, a yellow precipitate (B) is formed. (A) is mixed with MnO_2 and heated with conc. H_2 SO_4 when a gas (C) is evolved which tums starch-iodide paper blue. The compound formed, which turns NaOH solution yellow, is:

2g of aluminium is treated separately with excess of dil. H_(2)SO_(4) and excess of NaOH, the ratio of volume of hydrogen evolved is :

When 0.273g of Mg is heated strongly in a nitrogen (N_2) atmosphere, 0.378g of the compounds is formed. Hence, compound formed is

BRILLIANT PUBLICATION-S-BLOCK ELEMENTS-LEVEL-II
  1. Soda lime is

    Text Solution

    |

  2. Sodium peroxide which is a yellow solid , when exposed to air bec...

    Text Solution

    |

  3. A piece of magnesium ribbon was heated to redness in an atmosphere of ...

    Text Solution

    |

  4. Gypsum is added to clinker during cement manufacture to:

    Text Solution

    |

  5. Magnesium forms Mg^(2+) and not Mg^(+) because:

    Text Solution

    |

  6. A chloride dissolves appreciably in cold water. When placed on a plati...

    Text Solution

    |

  7. Limestone is not used in which of the following manufacturing processe...

    Text Solution

    |

  8. Which category of salts of alkaline earth metals is not found in solid...

    Text Solution

    |

  9. A metal M readily forms sulphate MSO4 which is water soluble. It forms...

    Text Solution

    |

  10. Sodium is heated in air at 350^@C to form X. X absorbs CO2 and forms s...

    Text Solution

    |

  11. On heating a mixture containing 1 mole each of Li2CO3 and K2CO3 .... "...

    Text Solution

    |

  12. There is loss in mass when mixture of Li2CO3 and Na2CO3 .10H2O is heat...

    Text Solution

    |

  13. Identify the correct statement:

    Text Solution

    |

  14. Which of the following pairs of substances would give same gaseous pro...

    Text Solution

    |

  15. The hydration energy of Mg^(2+) ion is

    Text Solution

    |

  16. The name and formula of the compound of magnesium chlorine and oxygen ...

    Text Solution

    |

  17. Be2C+H2O rarr BeO+X CaC2 +H2O rarr Ca(OH)2 +Y Mg2C3 +H2O rarr Mg(O...

    Text Solution

    |

  18. X+C+Cl2 overset("High temp.")to Y+CO" , "Y+2H2O rarr Z+2HCl ...

    Text Solution

    |

  19. Which metal bicarbonates does not exist in solid state? i) LiHCO3 ...

    Text Solution

    |

  20. The correct sequence of increasing covalent character is

    Text Solution

    |