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Which of the following statements regarding aluminium is not correct?
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By Expert Faculty of Sri Chaitanya
a
Aluminium is a light metal with considerable strength
b
Aluminium is a good conductor of heat and electricity
c
The corrosion of the aluminium metal is prevented by the formation of a coat of aluminium oxide on its layer
d
Aluminium dissolves in hydrochloric acid but not in concentrated sodium hydroxide
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Correct option is D
Aluminium dissolves both in HCl and conc. NaOH2Al+6HCl→Al2Cl3+3H2 and 2Al+2NaOH+6H2O→2NaAl(OH)4+3H2O
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