1.

Assertion : Copper metal gets readily corroded in an acidic aqueous solution. Reason : Free energy change for this process is positive.

Answer»

If both assertion and REASON are true and the reason is not thecorrect explanation of the assertion.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
If assertion is true but reason is false.
It the assertion and reason both are false.

Solution :Copper corrodes at negligible rates in unpolluted AIR, water and deaerated non-oxidiing acids. Pure copper and the high copper alloys can be considered to exhibit similar resistance to most corrosive ENVIRONMENTS. They POSSES excellent resistance to atmospheric environments. Corrosion is a spontaneous process for which free energy change must be negative.


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