Which of the following statements is correct?

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(B) Sodium metal is a strong reducing agent and it reduces $CO_2$ to carbon: $4Na + 3CO_2 	o 2Na_2CO_3 + C$. Option $A$ is incorrect because $Downs$

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Sodium metal reduces $CO_2$ to carbon.

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(B) Sodium metal is a strong reducing agent and it reduces $CO_2$ to carbon: $4Na + 3CO_2 	o 2Na_2CO_3 + C$. Option $A$ is incorrect because $Downs$ process uses a mixture of $NaCl$ and $CaCl_2$ to lower the melting point. Option $C$ is incorrect because $Mg$ reacts with hot water or steam,not cold water. Option $D$ is incorrect because Magnalium is an alloy of $Mg$ and $Al$.

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