Home
Class 11
CHEMISTRY
Shall phenolpthalein be used in neutrali...

Shall phenolpthalein be used in neutralisation of `Na_2 CO_3 by HC1`? Why the solubility of AgCN be increased by addition of KCN. What is the sum of PH & POH of a solution.

Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTION PAPER 1

    UNITED BOOK HOUSE|Exercise EXERCISE|63 Videos
  • MODEL QUESTION PAPER 11

    UNITED BOOK HOUSE|Exercise EXERCISE|54 Videos
UNITED BOOK HOUSE-MODEL QUESTION PAPER 10-EXERCISE
  1. Which one has the highest paramanetic property and which one has least...

    Text Solution

    |

  2. Find the position of the element having atomic number 24. In which blo...

    Text Solution

    |

  3. What do you mean by Stair step diagonal? State its significance.

    Text Solution

    |

  4. If the dipole moment and bond length of HF be 2.0 D and o.C.2A^@then f...

    Text Solution

    |

  5. Explain why the viscosity and boiling point of H2SO4 is too high.Write...

    Text Solution

    |

  6. What do you mean by surface tension? What is PI? How it is related wit...

    Text Solution

    |

  7. What do you mean by enthalpy? Show that DeltaH= DeltaU + Delta nRT.

    Text Solution

    |

  8. Define free energy. Comment for its change in a sponttaneous reaction.

    Text Solution

    |

  9. Identify ABCD:A overset(Na) underset(LiqNH3)(rarr)B overset (CH3I)(rar...

    Text Solution

    |

  10. If 4ml O2is obtained at 1.5atm pressure and 25^@C from 1 ml H2O2 sol...

    Text Solution

    |

  11. How would you differch mically Na2CO3 & NaHCO3 which alkali metal form...

    Text Solution

    |

  12. State the conditions of SN^2 reaction? What is I-effect?

    Text Solution

    |

  13. What type of equilibrium 'is this 3Fe (s) + (g) f Fe3O4 (S) 4H2 (g)Di...

    Text Solution

    |

  14. Shall phenolpthalein be used in neutralisation of Na2 CO3 by HC1? Why ...

    Text Solution

    |

  15. Why CO Can't be dried using comes H2SO4? Give an example of a reaction...

    Text Solution

    |

  16. State reason:Why the radius of Ga is less than that of Al.

    Text Solution

    |

  17. State reason:The melting point of Boron is top high.What is Corundum? ...

    Text Solution

    |

  18. How would you differ Chemically between ethane and ethene. What will h...

    Text Solution

    |

  19. How would you Convert. State one demerits Fredel craft alkylation reac...

    Text Solution

    |

  20. How would you Convert. State one demerits Fredel craft alkylation reac...

    Text Solution

    |