Advertisements
Advertisements
Question
Draw the structure of boric acid showing hydrogen bonding. Which species is present in water? What is the hybridisation of boron in this species?
Advertisements
Solution
Structure of boric acid; the dotted lines represent hydrogen bonds
[B(OH)4]– units are present in water. Boron has sp3 hybridisation in [B(OH)4]– unit.
APPEARS IN
RELATED QUESTIONS
Is boric acid a protic acid? Explain.
Explain what happens when boric acid is heated.
Explain the Structure of Boric Acid.
A certain salt X, gives the following results.
- Its aqueous solution is alkaline to litmus.
- It swells up to a glassy material Y on strong heating.
- When conc. H2SO4 is added to a hot solution of X, white crystal of an acid Z separates out.
Write equations for all the above reactions and identify X, Y and Z.
Boric acid is polymeric due to ______.
An aqueous solution of borax is _______.
Explain the Structure of Diborane.
When aqueous solution of borax is acidified with hydrochloric acid, a white crystalline solid is formed which is soapy to touch. Is this solid acidic or basic in nature? Explain.
What are boranes? Give chemical equation for the preparation of diborane.
A compound (A) of boron reacts with NMe3 to give an adduct (B) which on hydrolysis gives a compound (C) and hydrogen gas. Compound (C) is an acid. Identify the compounds A, B and C. Give the reactions involved.
Which is correct statement about diborane structure?
Aqueous solution of which of the following boron compounds will be strongly basic in nature?
Boric acid heated to red hot gives ______.
Which of the following compounds are formed when boron trichloride is treated with water?
In diborane ______.
On the addition of mineral acid to an aqueous solution of borax, the compound formed is ______.
Which one of the following methods is used to prepare borax crystals?
Boric acid (H3BO3) is ______.
