Home
Class 12
CHEMISTRY
A solution of a metal salt gives a gelat...

A solution of a metal salt gives a gelatinous white precipitate on treatment with aqueous ammonia in presence of ammonium chloride. The precipitate on treatment with strong NaOH solution, dissolves giving a colourless solution. The metal ion in the salt is

A

`Ca^(2+)`

B

`Al^(3+)`

C

`Zn^(2+)`

D

`Mg^(2+)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • QUESTION PAPER 2008

    WB JEE PREVIOUS YEAR PAPER|Exercise CHEMISTRY|40 Videos

Similar Questions

Explore conceptually related problems

Ammonium hydroxide is slowly added to a solution containing a salt. The colour of the solution turns deep blue. The metal ion present in the solution is

Which of the ions will give colourless aqueous solution?

Which of the following compounds does not produce a white precipitate on treatment with ammonicacal silver nitrate solution?-

Upon treatment with ammonical H_(2)S solution, the metal ion precipitating as sulphide is:

Heating an aqueous solution of aluminium chloride to dryness will give:

A metal nitrate reacts with KI solution to give a black precipitate which on addition of excess of KI solution forms an orange coloured solution. The cation of metal nitrate is :

When acetaldehyde is heated with Fehling solution, it gives a precipitate of

In aqueous solution nitric acid ionise to give two ions.

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-CHEMISTRY
  1. In a reaction ""(4)Be^(9)+"Projectile"to""(4)Be^(8)+""(0)n^(1), the pr...

    Text Solution

    |

  2. Conversion of RCOOH to RCH(2)OH can be achievedby

    Text Solution

    |

  3. The root mean square speed at sTP of molecules H(2),N(2),O(2) and HBr ...

    Text Solution

    |

  4. Which of the following compound forms two isomeric oxims on reactig wi...

    Text Solution

    |

  5. 3-phenyl propene on reaction with HBr gives (as a major product)

    Text Solution

    |

  6. BaSO(4) is water insoluble although it is an ionic compound because of

    Text Solution

    |

  7. The atmospheric gas which cannot produce greenhouse effect is

    Text Solution

    |

  8. In acidic medium, the equivalent wight of K(2)Cr(2)O(7) (Mol. Wt. =M) ...

    Text Solution

    |

  9. The oxidation state of Fe in[Fe(H(2)O)(5)NO]SO(4) is

    Text Solution

    |

  10. Number of sigma- bond, pi- bond and Ione pari (lp) of electrons in ace...

    Text Solution

    |

  11. Equivalent conductance of an weak acid at 0-1 M concentration is 100 t...

    Text Solution

    |

  12. Role of ATP in bioenergetics is

    Text Solution

    |

  13. Molar conductivities of H^(+),Na^(+),K^(+) and Rb^(+) ions in aqueous ...

    Text Solution

    |

  14. Chloride of a metal (M) of specific heat 0-16 contains 63.96% of chorl...

    Text Solution

    |

  15. A solution of a metal salt gives a gelatinous white precipitate on tre...

    Text Solution

    |

  16. Cryolite is added to alumina in the electrolytic production of the alu...

    Text Solution

    |

  17. Which of the following characteristics will always lead to a spontaneo...

    Text Solution

    |

  18. If the reaction CH(3)COOCH(3)+H(2)Ounderset(["acid"])overset(H^(+))...

    Text Solution

    |

  19. The cell constnat (k) for an electrical conductivity cell having two e...

    Text Solution

    |

  20. Among O(2),NH(3),CO and CH(4) the gas with highest root mean square ve...

    Text Solution

    |