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Question
Explain and give reasons why aluminium vessels should not be cleaned with powders containing alkalis.
Answer in Brief
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Solution
Aluminium vessels should not be cleaned with powders containing alkalis because aluminium reacts with alkalis to form respective aluminate and hydrogen as:
\[\ce{2Al + 2NaOH + 2H2O -> 2NaAlO2 + 3H2}\]
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