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Q.

Which of the following statements is not correct?

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a

CO2 is neither combustible nor supporter of combustion

b

CO is a combustible gas

c

CO cannot reduce alkali metal oxides

d

CO2 reduces CuO to Cu is

answer is D.

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Detailed Solution

→CO2 is neither combustible nor supporter of combustion→ CO is a combustable gasCO+12O2→CO2gBlue flames+∆→ CO Can't reduce alkali metal oxidesSince, alkali metals have grater tendency towards oxygen than "CO" →CO2 can't reduces the CuO to Cu Where as CO can reduces the CuO to CuCO+CuO→CO2+Cu
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Which of the following statements is not correct?