Advertisements
Advertisements
प्रश्न
Write a balanced equation for \[\ce{H3BO3 ->[\Delta]}\]?
Advertisements
उत्तर
\[\ce{4H3BO3 ->[][-4H2O] \underset{Metaboric acid}{4HBO2} ->[410 K][- H2O] \underset{Tetraboric acid}{H2B4O7}->[Red hot][- H2O] \underset{Boron trioxide}{2B2O3}}\]
संबंधित प्रश्न
Is boric acid a protic acid? Explain.
Explain the Structure of Boric Acid.
Explain the following reaction.
Hydrated alumina is treated with aqueous NaOH solution.
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.
Write a balanced equation for NaH + B2H6 → ?
Boric acid is polymeric due to ______.
An aqueous solution of borax is _______.
Explain the Structure of Diborane.
Draw the structures of BCl3.NH3 and AlCl3 (dimer).
Explain the nature of boric acid as a Lewis acid in water.
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 of the following is a FALSE statement about boric acid, \[\ce{H3BO3}\]?
Boric acid heated to red hot gives ______.
In diborane ______.
When aqueous solution of AICl3 is concentrated, it furnishes crystals of ______.
Which one of the following methods is used to prepare borax crystals?
