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प्रश्न
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.
उत्तर
When aqueous solution of borax is acidified with hydrochloric acid, boric acid is produced. As the name says, boric acid is acidic in nature but weak acid. Unlike protonic acid, boric acid is monobasic acid,
It accepts electrons from the hydroxyl group of water and forms [B(OH4]–.
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संबंधित प्रश्न
Is boric acid a protic acid? Explain.
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.
Write a balanced equation for \[\ce{H3BO3 ->[\Delta]}\]?
Draw the structure of boric acid showing hydrogen bonding. Which species is present in water? What is the hybridisation of boron in this species?
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, \[\ce{H3BO3}\]?
Diborane (B2H6) reacts independently with O2 and H2O to produce, respectively:
When aqueous solution of AICl3 is concentrated, it furnishes crystals of ______.
The reaction of H3N3B3Cl3(A) with LiBH4 in tetrahydrofuran gives inorganic benzene (B). Further, the reaction of (A) with (C) leads to H3N3B3(Me)3. Compounds (B) and (C) respectively, are ______.
