Home
Class 12
CHEMISTRY
In alkaline solution, with Devarda's all...

In alkaline solution, with Devarda's alloy (Cu//Al//Zn) nitrites are reduced to ammonia.

Text Solution

Verified by Experts

The correct Answer is:
T
NA
Promotional Banner

Topper's Solved these Questions

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise ALP PART OBJECTIVE|12 Videos

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Nitrogen containing Compounds)|5 Videos

  • P BLOCK ELEMENTS

    RESONANCE ENGLISH|Exercise ALP PART II SUBJECTIVE|1 Videos

  • NUCLEAR CHEMISTRY

    RESONANCE ENGLISH|Exercise STAGE-II|1 Videos

  • P-BLOCK ELEMENT (BORON AND CARBON FAMILY)

    RESONANCE ENGLISH|Exercise PART - III : OLYMPIAD PROBLEMS (PREVIOUS YEARS) STAGE - V (INTERNATIONAL CHEMISTRY OLYMPIAD (IChO)) Problem 3|8 Videos

Similar Questions

Explore conceptually related problems

Ammonia forms the complex [Cu(NH_(3))_(4)]^(2+) with copper ion in alkaline solution but not in acidic solution. This is due to the reason that :

A solution of sodium in liquid ammonia serves as a reducing agent due to the reaction.

Ammonia form the complex ion [Cu(NH_(3))_(4)]^(2+) with copper ions in the alkaline solution but not In acidic solution.What is the statement-2 for it?

A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of

A solution of sodium metal in liquid ammonia is strongly reducing due to the presence of

Which of the following statements is/are true for the solutions of alkali metals and alkaline earth metals in ammonia (l) ?

E_0 values of Zn^(2+), Zn , Mg^(2+), Mg and Cu^(2+), Cu are -0.76 V, -2.36 and 0.34 V respectively. (a) Which metal can be extracted even from its aqueous solutions by electrolysis ? (b) Which metal acts as best reductant ? Write reactions .

Consider the following statement: S_(1) : Cu^(2+) ions are reduced to Cu^(+) by potassium iodide and potassium cyanide both, when taken in excess S_(2) : H_(2)S will precipitate the sulphide of all the metals from the solutions of chlorides of Cu,Zn and Cd if the solution is aqueous. S_(3) :The presence of magnesium is confirmed in qualitative analysis by the formation of a white crystal S_(4) :Calomel on reaction with potassium iodide gives red precipitate. and arrange in the order of true/false.

Statement -1 :An original solution containing excess of Ni^(2+) ions gives a yellow coloured solution with potassium cyanide solution. Statement-2 :A solution of Ni^(2+) ions gives red precipitate with dimethylglyoxime solution just made alkaline with ammonia.

Alkali &alkaline earth metals have low ionisation enthalpies and hence exhibit characteristic flame colouration. They have high negative electrode potentials & hence are strong reducing agents. It dissolve in liquid ammonia to give a solution which conducts electricity and act as strong reducing agent. being stronger reducing agent than hydrogen, they are usually prepared by the electrolysis of their fused chlorides. Their oxides are basic and the basic strength increases down the group. The solubility of carbonates and sulphates of alkali and alkaline earth metals show opposite trends. only the carbonates of Li and alkaline earth metals decompose on heating. The bicarbonates of both alkali & alkaline earth metals on heating give carbonates. Which of the following process is used in the extractive metallurgy of sodium?

RESONANCE ENGLISH-P BLOCK ELEMENTS-ALP PART 1 Comprehension # 1 SUBJECTIVE
  1. In P4 O10, the number of oxygen atoms bonded to each phosphorus atom i...

    Text Solution

    |

  2. Write the names of substances which have higher oxidation potential th...

    Text Solution

    |

  3. Why sulphur is able to show oxidation state of +4 and +6 with fluroine...

    Text Solution

    |

  4. Oxygen exists as a gas, while sulphur exists as a solid Why ?

    Text Solution

    |

  5. How is the presence of SO2 detected?

    Text Solution

    |

  6. Which aerosols deplete ozone?

    Text Solution

    |

  7. Oxygen almost invariably exhibits oxidation state of -2 but the other ...

    Text Solution

    |

  8. An aqueous solution of a gas (X) gives the following reactions : (a)...

    Text Solution

    |

  9. On heating rhombic sulphur it melts but viscosity of liquid increases ...

    Text Solution

    |

  10. {:(,underset(("Oxy acids of phosphoros"))("Column I"),,underset(("Char...

    Text Solution

    |

  11. {:("Column I","Column II"),((A)PbO(2)+HNO(3)to,(p)"One of the products...

    Text Solution

    |

  12. {:("Column I","Column II"),((A)2NO(2)overset("Cool")to,(p)"One of the ...

    Text Solution

    |

  13. P(4) reduces copper sulphate solution to metallic copper. True or Fa...

    Text Solution

    |

  14. Red phosphorus catches fire at room temperature. True or False

    Text Solution

    |

  15. If 200mL of 0.1M urea solution is mixed with 400mL of 0.2M glucose sol...

    Text Solution

    |

  16. N(2)O does not from hyponitrite with alkali. State True or False .

    Text Solution

    |

  17. In alkaline solution, with Devarda's alloy (Cu//Al//Zn) nitrites are r...

    Text Solution

    |

  18. N(2)O(5) is an acid anhydride of HNO(3). State True or False

    Text Solution

    |

  19. SO(3) does not turn starch iodate paper blue.

    Text Solution

    |

  20. Reduction of bisulphite solution and SO(2) with zin dust yields sulpha...

    Text Solution

    |