Home
Class 12
CHEMISTRY
In the reaction B (OH)(2).2H(2)Oto[B(OH)...

In the reaction `B (OH)_(2).2H_(2)Oto[B(OH)_(2)]^(-)+2H_(2)O^(+)`. [B(OH)_(2)]^(-) is

A

Lewis base

B

Protonic acid

C

Lewis acid

D

Bronsted acid

Text Solution

Verified by Experts

The correct Answer is:
C
Boric acid is weak mono basic acid.It is not a protonic acid but acts as a Lewis acid by accepting electron from a hydroxyl ion.
Promotional Banner

Topper's Solved these Questions

  • K-CET-CHEMISTRY-2017

    SUNSTAR PUBLICATION|Exercise MULTIPLE CHOICE QUESTION|60 Videos

  • SUPPLEMENTARY EXAM QUESTION PAPER JULY - 2018

    SUNSTAR PUBLICATION|Exercise PART - D|28 Videos

Similar Questions

Explore conceptually related problems

In the reaction, B(OH)_(3) + 2H_(2)O to [B(OH)_(4)]^(-) + H_(3)O^(+) ,B(OH)_(3) functions as

In the reaction : Cl_(2)+2OH^(-)toOCl^(-)+Cl^(-)+H_(2)O

For the reaction : CO(g)+2H_(2)(g)hArr CH_(3)OH(g)

Consider the reaction A H_(2)O_(2)+2HIrarrI_(2)+2H_(2)O B HOCI+H_(2)O_(2)rarrH_(3)O^(+)+CI^(-)+O_(2) which of the following statement is correct about H_(2)O_(2) with reference to these reactions hydrogen peroxide is ……………………

The value of enthalpy change (Delta H) for the reaction : C_(2)H_(5)OH(l) + 3O_(2)(g) rarr 2CO_(2)(g) + 3H_(2)O(l) at 27^(@)C is - 1366.5 kJ mol^(-1) . The value of internal energy change for the above reaction at the temperature will be :

In a fuel cell methanol is used as fuel and oxygen is used as an oxidiser. The reaction is : CH_(3)OH(l)+(3)/(2)O_(2)(g)rarr CO_(2)(g)+2H_(2)O(l) At 298 K, standard Gibb's energies of formation for CH_(3)OH(l), H_(2)O(l) and CO_(2)(g) are -166.2, - 237.2 and -394.4 kJ/mol respectively. If standard enthalpy of combustion of methanol is - 726 kJ/mol, effeciency of the fuel cell will be :

In the reaction , CH_(3)CHO+HCNtoCH_(3)CH(OH)CN overset(H^(+)//H_(2)O)toCH_(3)CH(OH)COOH an asymmetric centtre is generated . The acid obtained would be :

SUNSTAR PUBLICATION-K-CET-CHEMISTRY-2019-Question
  1. The reaction in which DeltaHgtDeltaU is

    Text Solution

    |

  2. The number of moles of electron required to reduce 0.2 mole of Cr(2)O...

    Text Solution

    |

  3. In the reaction B (OH)(2).2H(2)Oto[B(OH)(2)]^(-)+2H(2)O^(+). [B(OH)(2)...

    Text Solution

    |

  4. Match the folllwing acids with their pKa values:

    Text Solution

    |

  5. Which of the following can be used to test the acidic nature of ethano...

    Text Solution

    |

  6. The reagents A,B and C respectively are

    Text Solution

    |

  7. Propanoic acd undergoes HVZ reaction to give chloropopanoic acid.The p...

    Text Solution

    |

  8. Poverset(H(2)//Pd-BaSO(4))toQunderset((ii)dil.HCl)overset((I Con.NaOH)...

    Text Solution

    |

  9. The main reactions occurring in blast furnace during extraction of iro...

    Text Solution

    |

  10. Which of the following pair contains 2 long pair of electrons on the c...

    Text Solution

    |

  11. Which of the following statement is correct?

    Text Solution

    |

  12. 0.1 mole of XeF(6) is treated with 1.8 g of water.The product obtained...

    Text Solution

    |

  13. In the reaction of gold with aquaregia, oxidation state of Nitrogen ch...

    Text Solution

    |

  14. The vitamin that helps to clotting of blood is

    Text Solution

    |

  15. The polymer containing five methylene groups in its repeating unit is

    Text Solution

    |

  16. Cis-1,4- polysoprene is called

    Text Solution

    |

  17. Which cleansing agent gets precipitated in hard water?

    Text Solution

    |

  18. Anti-histamine among the following is

    Text Solution

    |

  19. The elements in which electrons are progressively filled in 4f orbital...

    Text Solution

    |

  20. Incorrect statement with reference to Ce (Z=58)

    Text Solution

    |