HP TET NON-MEDICAL - CHEMISTRY PYQ 2023 | HP TET Previous Year Question Paper 2023 | By Kamini Ma'am

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  • เผยแพร่เมื่อ 14 ธ.ค. 2024

ความคิดเห็น • 6

  • @VINODKUMAR_9
    @VINODKUMAR_9 8 หลายเดือนก่อน +1

    Mam please HP PGT chemistry ki TH-cam classes continue rkhe...

  • @sunidhipathania6147
    @sunidhipathania6147 หลายเดือนก่อน

    In que 12th.....as per your concept there will be two answers NH3 and BF3..... But both the structures have covlent bonds... SO3 is the only structure which has two dative or coordinate bonds
    BF3 forms dative bond when it gains pair of electrons. Example H3N••BF3 Or H3N:-->BF3
    In this N is providing both the electrons to the B which fulfill the octet rule.

  • @nidhisharma.94
    @nidhisharma.94 7 หลายเดือนก่อน

    Good evening ma'am
    Q.12 dative bond present in SO3 ..?
    Bf3 have a covalent bonding .. plz clarify my doubt

    • @sharmasharma425
      @sharmasharma425 7 หลายเดือนก่อน

      The molecule SO3 has two coordinate bonds but that structure is not the most stable form as it carries a formal charge. Hence, it doesn't show dative bonding.

    • @sharmasharma425
      @sharmasharma425 7 หลายเดือนก่อน

      One of the most well-known examples of dative bonding is the bond between ammonia (NH3) and boron trifluoride (BF3). The boron of BF3 has only six valence electrons and requires two more electrons to satisfy the octet rule.

    • @nidhisharma.94
      @nidhisharma.94 7 หลายเดือนก่อน

      Official Answer key ke according bhi Jo Answer given h vo SO3 h @ sharmasharma425