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Which one of the following is correct st...

Which one of the following is correct statement ?

A

The hydroxide of aluminium is more acidic than that of boron

B

The hydroxide of boron is acidic, while that of aluminium is amphoteric

C

The hydroxide of boron is acidic, while that of aluminium is amphoteric

D

The hydroxide of boron and aluminium are amphoteric

Text Solution

Verified by Experts

The correct Answer is:
C
`B(OH)_(3) rArr H_(3)BO_(3)` boric acid, `Al(OH)_(3) rArr` Amphoteric
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  6. In Goldschmidt aluminothermic process, thermite mixture contains:

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  7. Which metal has a greater tendency to form metal oxide

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  8. In which of the following molecules is hydrogen bridge bond present ?

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  9. In borax the number of B-O-B links and B-OH bond present are, respecti...

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  11. Correct formula of aluminium nitride is

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  12. Which metal burn in air at high temperature with the evolution of much...

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  13. Ga is below Al in the periodic table, but atomic radius of Ga is less ...

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  14. Crystalline metal can be transformed into metallic glass by

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  15. An element A dissolves both in acid and alkali. It is an example of

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  16. Which one of the following is correct statement ?

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  17. In the purification of bauxite by Hall's process

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  18. Assertion: Boron is metalloid. Reason : Boron shows metallic nature...

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  19. These questions consist of two statements each, printed as Assertion a...

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  20. Which one of following elements is unable to from MF(6)^(3-) ion?

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