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Building Materials

Q1: Pick up the correct statement from the following:

A Rusting is caused due to combined action of air, moisture and carbon dioxide

B During rusting, first ferrous bicarbonates are formed

C On further oxidation ferrous bicarbonates get converted to ferric bicarbonates

D Ultimately hydrated ferric oxide is formed during rusting and carbon dioxide gets liberated

E All the above.

ANS:E - All the above.

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