$Q$ અને $R$ ની બનાવટ માટે પ્રક્રિયકોની સાચી શ્રેણી શોધો.
A$(i)$ $Cr _2 O _3, 770\,K , 20\,atm$;
$(ii)$ $CrO _2 Cl _2, H _3 O ^{+}$;
$(iii)$ $NaOH$;
$(iv)$ $H _3 O ^{+}$
B$(i)$ $CrO _2 Cl _2, H _3 O ^{+}$;
$(ii)$ $Cr _2 O _3, 770\,K , 20\,atm$;
$(iii)$ $NaOH$;
$(iv)$ $H _3 O ^{+}$
C$(i)$ $KMnO _4, OH ^{-}$;
$(ii)$ $Mo _2 O _3, A$;
$(iii)$ $NaOH$;
$(iv)$ $H _3 O ^{+}$
D$(i)$ $Mo _2 O _3, \Delta$;
$(ii)$ $CrO _2 Cl _2, H _3 O ^{+}$;
$(iii)$ $NaOH$;
$(iv)$ $H _3 O ^{+}$
JEE MAIN 2023, Medium
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