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Which of the following statements regard...

Which of the following statements regarding boric acid is false?

A

It acts as a weak monobasic acid

B

It is soluble in hot water

C

It has a planar structure

D

It acts as a tribasic acid

Text Solution

Verified by Experts

The correct Answer is:
D
`B(OH)_(3)+2HOH hArr [B(OH)_(4)]^(-)+H_(3)O`.
In aqueous solution the boron completes its octet by accepting `OH^(-)` from water molecules.It therefore function as a weak monobasic lewis acid.
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RESONANCE-P-BLOCK ELEMENT (BORON AND CARBON FAMILY)-Advanced Level Problems Part-I : PRACTICE TEST-1 (IIT-JEE (MAIN Pattern))
  1. Given type of silicones are called [P] -O-oversetoverset(R)(|)unders...

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  2. Which of the following is not a property of silicones ?

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  3. Tourmalene is a class of cyclosilicates with general formula. (Ca, K...

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  4. The silicate anion in the mineral kinoite is a chain of three SiO(4) t...

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  5. The dehydration of malonic acid CH(2) (COOH)(2) with P(4)O(10) and hea...

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  6. Borax on heating with cobalt oxide forms a blue bead of

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  7. The dissolution of Al(OH)(3) by a solution of NaOH results in the form...

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  8. Select the incorrect statement about the boron.

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  9. Aqueous solution containing 1 mol of borax raects with 2 mol of acids....

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  10. Water transpoted through Lead pipes becomes poisonous due to the forma...

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  11. When a mixture of air and steam is passed over red hot coke, the outgo...

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  12. In BF(3), the B-F bond length is 1.30 A, when BF(3) is allowed to be t...

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  13. Aluminium is extracted in the electrolysis of :

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  14. A compound of boron X reacts at 200^(@)C temperature with NH(3) to giv...

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  15. For given processes, choose the correct order of purity of silicon obt...

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  16. E represents an element belonging to boron family. 2E+3X(2) to 2EX(3...

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  17. E represents an element belonging to boron family. E+2X(2) to EX(4)...

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  18. When Al is added to KOH solution

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  19. Which of the following reactions lead to chemical inertness :

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  20. Which of the following statements regarding boric acid is false?

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