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The P-Block Elements

Question
CBSEENCH11007265
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Write reactions to justify amphoteric nature of aluminium. 

Solution

Aluminium dissolves both in acids and alkalies evolving dihydrogen.
           2 Al left parenthesis straight s right parenthesis space plus space 3 straight H subscript 2 SO subscript 4 left parenthesis aq right parenthesis space rightwards arrow space space Al subscript 2 left parenthesis SO subscript 4 right parenthesis subscript 3 left parenthesis aq right parenthesis space plus space 3 straight H subscript 2 left parenthesis straight g right parenthesis 2 Al left parenthesis straight s right parenthesis plus 2 NaOH left parenthesis aq right parenthesis plus 6 straight H subscript 2 straight O left parenthesis straight l right parenthesis space space space space space space space space space space space space space space space space space space rightwards arrow space 2 N a to the power of plus left square bracket A l left parenthesis O H right parenthesis subscript 4 right square bracket to the power of minus space left parenthesis a q right parenthesis space plus space 3 straight H subscript 2 left parenthesis straight g right parenthesis

Some More Questions From The p-Block Elements Chapter

What is the structure of diborane?

Can borax bead test be performed for Ca2+ ion?

Which is the hardest compound of boron?

What is inorganic benzene? Write its formula. 

Name a hydride of boron which is used as reducing agent in organic chemistry. 

Does a molecule of BH3 exist?

What is relative stability of +1 oxidation state in group 13.

Are all the B-H bonds in diborane equivalent?

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