Home
Class 12
CHEMISTRY
Which one of the following statements is...

Which one of the following statements is not correct?

A

Moissan boron is amorphous

B

The reaction between boron and concentrated `HNO_(3)` gives `N_(20O`

C

Amorphous boron on heating with oxygen forms `B_(2)O_(3)`.

D

Boron is a non-conductor of electricity

Text Solution

Verified by Experts

The correct Answer is:
B

The reaction between boron and concentrated `HNO_(3)` gives `NO_(2)`.
`B+3HNO_(3)toH_(3)BO_(3)+2NO_(2)`
Promotional Banner

Topper's Solved these Questions

  • p-BLOCK ELEMENTS

    SIA PUBLICATION|Exercise MCQ.s|169 Videos
  • ORGANIC CHEMISTRY-II

    SIA PUBLICATION|Exercise MCQ|136 Videos
  • POLYMERS

    SIA PUBLICATION|Exercise MCQ.s|9 Videos

Similar Questions

Explore conceptually related problems

Which one of the following statement is not correct ?

Which one of the following statement is not correct regarding phosphine ?

In the equilibrium reaction A+BhArrC+D , the activation energy for the forward reaction is 25 kcals "mole"^(-1) and that of backward reaction is 15 kcals "mole"^(-1) . Which one of the following statements is correct?

In the equilibrium reaction, A +B leftrightarrow C + D The activation energy for the forward reaction is 25 kcal mol^(-1) and that of the backward reaction is 15 kcal mol^(-1) . Which one of the following statements is correct?

Which one of the following statements is correct?

Which one of the following statements is correct?

Which one of the following statements is correct?

SIA PUBLICATION-p-BLOCK ELEMENTS-MCQ.s
  1. Bond energy of Cl(2),Br(2) and I(2) follow the order

    Text Solution

    |

  2. Assertion (A): The boiling points of noble gases increase from He to X...

    Text Solution

    |

  3. Which one of the following statements is not correct?

    Text Solution

    |

  4. Which one of the following is a correct set?

    Text Solution

    |

  5. The total number of sigma and pi-bonds in pyrophosphoric acid are resp...

    Text Solution

    |

  6. What are the products formed when moist chlorine gas is reacted with h...

    Text Solution

    |

  7. What is the bond angle in ClO(2) (OClO) ?

    Text Solution

    |

  8. The hybridisation of Xe and the number of lone pairs of electrons on i...

    Text Solution

    |

  9. Diborane reacts with ammonia under different conditions to give a vari...

    Text Solution

    |

  10. Which one of the following is the mineral for tin?

    Text Solution

    |

  11. The oxide of nitrogen formed by thermal decoposition of NH(4)NO(3) is

    Text Solution

    |

  12. Which one of the following is most acidic?

    Text Solution

    |

  13. Which one of the following is formed apart from sodium chloride when c...

    Text Solution

    |

  14. Helium mixed with oxygen is used in the treatment of

    Text Solution

    |

  15. The number of p pi-d pi 'pi' bonds present in XeO(3) and XeO(4) molecu...

    Text Solution

    |

  16. The type of bonds present in sulphuric anhydride are

    Text Solution

    |

  17. Which pair of oxyacids of phosphorus contains 'P-H' bonds ?

    Text Solution

    |

  18. SiCl(4) on hydrolysis forms 'X' and HCl. Compound 'X' loses water at 1...

    Text Solution

    |

  19. Match the following The correct answer is

    Text Solution

    |

  20. Boron halides behave as Lewis acids because of their nature.

    Text Solution

    |