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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pb200

Which of the following reactions occur as written?

A $CO X_{2} + C Δ 2 CO$ (red hot carbon)
B $CO + H X_{2} O catalyst CO X_{2} + H X_{2}$ (water gas shift)
C $CO + H X_{2} O HCOOH$ at room temperature without any catalyst
D $2 Mg + CO X_{2} 2 MgO + C$ (burning magnesium in $CO X_{2}$ )

Answer: A, B, D

Magnesium is a strong enough reductant to burn in

CO X_{2}

. The Boudouard reaction and the water-gas shift are both known industrial processes. CO is only the formal anhydride of formic acid and does not react with water at room temperature, so the last reaction does not occur.

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