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  • The number of terminal oxygen atoms present in the product B obtained from the following reaction is __________. <img alt="\mathrm{FeCr}_{2} \mathrm{O}_{4}+\mathrm{Na}_{2} \mathrm{CO}_{3}

The number of terminal oxygen atoms present in the product B obtained from the following reaction is __________.

\mathrm{FeCr}_{2} \mathrm{O}_{4}+\mathrm{Na}_{2} \mathrm{CO}_{3}+\mathrm{O}_{2} \rightarrow \mathrm{A}+\mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{CO}_{2}

\mathrm{A}+\mathrm{H}^{+} \rightarrow \mathrm{B}+\mathrm{H}_{2} \mathrm{O}+\mathrm{Na}^{+}

Option: 1

6


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

The reactions occur as

\mathrm{\mathrm{FeCr}_{2} \mathrm{O}_{4}+\mathrm{Na}_{2} \mathrm{CO}_{3}+\mathrm{O}_{2} \longrightarrow \mathrm{Na}_{2} \mathrm{CrO}_{4}+\mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{CO}_{2}}

\mathrm{Na}_{2} \mathrm{CrO}_{4}+\mathrm{H}^+\longrightarrow \mathrm{Na}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}+\mathrm{H}_{2} \mathrm{O}

Thus \text { B\: is } \mathrm{Cr}_{2} \mathrm{O}_{7}{ }^{2-}

It contains 6 terminal oxygen atoms

Hence answer is 6

Posted by

Riya

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