$A l$ should not be washed with material containing washing soda :

washing soda is expensive

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washing soda is easily decomposed

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it react with

A l

to form soluble aluminate.

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none of these

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Solution

The correct option is C it react with $A l$ to form soluble aluminate.
$2 A l + N a_{2} C O_{3} + 3 H_{2} O \to 2 N a A l O_{2} + C O_{2} + 3 H_{2}$
So if $A l$ is washed with washing soda it forms sodium aluminate ( $N a A l O_{2}$ ) which is soluble in water
Hence option C is correct.

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Similar questions

Q. Aluminium vessels should not be washed with materials containing washing soda because :

Assertion (A): Permanent hardness of water is removed by treatment with washing soda.
Reason(R): Washing soda reacts with soluble magnesium and calcium sulphate to form water-soluble compounds.

Q. Assertion (A): Permanent hardness of water is removed by treatment with washing soda.
Reason(R): Washing soda reacts with soluble magnesium and calcium sulphate to form insoluble compounds.

Q. Assertion :Permanent hardness of water can be removed by using washing soda Reason: Washing soda reacts with soluble calcium and magnesium chlorides and sulphates in hard water to form insoluble carbonates

Q. How can washing soda be obtained from baking soda? Discuss uses of washing soda.

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Al should not be washed with material containing washing soda :

The correct option is C it react with Al to form soluble aluminate.2Al+Na2CO3+3H2O→2NaAlO2+CO2+3H2So if Al is washed with washing soda it forms sodium aluminate (NaAlO2) which is soluble in waterHence option C is correct.

$A l$ should not be washed with material containing washing soda :

The correct option is C it react with $A l$ to form soluble aluminate.
$2 A l + N a_{2} C O_{3} + 3 H_{2} O \to 2 N a A l O_{2} + C O_{2} + 3 H_{2}$
So if $A l$ is washed with washing soda it forms sodium aluminate ( $N a A l O_{2}$ ) which is soluble in water
Hence option C is correct.