Q.

Regarding ‘Al’ the wrong statement is

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a

It reacts with both acids and bases

b

Its maximum covalency is ‘6’

c

It is a strong reducing agent

d

It becomes passive with con HCl

answer is D.

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Detailed Solution

→ Al reacts with both acids as well as bases,ie.,Al shows amphoteric nature.                                                                                                     Sodium meta aluminate→ Al maximum covalency is 6,due to presence of valency empty 3d-orbitals.  eg.,→ " Al "acts as strong reducing agent.eg.,Al do not passive with conc.HCl
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