Which of the following reactions is not corre | vedclass

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Question

(A) The reaction $2M_2O \xrightarrow[673 \ K]{	ext{heat}} M_2O_2 + 2M$ is generally not a standard method for preparing peroxides of alkali metals.Sp

Vedclass · Accepted Answer

$2Li_2O \xrightarrow[673 \ K]{	ext{heat}} Li_2O_2 + 2Li$

Vedclass · Answer

(A) The reaction $2M_2O \xrightarrow[673 \ K]{	ext{heat}} M_2O_2 + 2M$ is generally not a standard method for preparing peroxides of alkali metals.Specifically,$Li$ is the smallest alkali metal and its oxide $Li_2O$ is very stable.$Li$ does not form a peroxide $(Li_2O_2)$ under these conditions; it primarily forms the monoxide $Li_2O$ upon combustion in excess air.Therefore,the reaction shown in option $A$ is chemically incorrect.

Which of the following reactions is not correct?

Similar Questions

Which among the following statements of group-$1$ elements is $NOT$ true?

Which alkali metal emits blue colour light in a flame test?

Which of the following alkali metals has a density greater than water?

Among the statements $(a)-(d)$ the correct ones are
$(a)$ Lithium has the highest hydration enthalpy among the alkali metals.
$(b)$ Lithium chloride is insoluble in pyridine.
$(c)$ Lithium cannot form ethynide upon its reaction with ethyne.
$(d)$ Both lithium and magnesium react slowly with $H_2O$.

Beryllium is placed above magnesium in the second group. Beryllium dust,therefore,when added to $MgCl_2$ solution will:

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