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(D) Among the alkaline earth metals,the tendency to form peroxides increases down the group as the size of the metal cation increases and the lattice

Vedclass · Accepted Answer

Barium

Vedclass · Answer

(D) Among the alkaline earth metals,the tendency to form peroxides increases down the group as the size of the metal cation increases and the lattice energy becomes more favorable for the larger peroxide ion $(O_2^{2-})$.$Be$ and $Mg$ form only oxides $(MO)$.$Ca$ and $Sr$ form peroxides $(MO_2)$ to a limited extent.$Ba$ has the largest size among the given options and forms $BaO_2$ (Barium peroxide) most readily.

Which of the following elements has the highest tendency to form a peroxide?

Similar Questions

Assertion $(A)$: $MgO$, $CaO$, $SrO$, and $BaO$ are insoluble in water.
Reason $(R)$: In aqueous medium, the basic strength of $MgO$, $CaO$, $SrO$, and $BaO$ increases with an increase in the atomic number of the metal.
The correct option among the following is:

Which of the following is not a characteristic of barium $(Ba)$?

Which of the following alkaline earth metals forms complex compounds?

Which of the following sets represents the alkaline earth metals?

The carbonates of alkaline earth metals decompose on heating to give:
$I$. $CO_2$
$II$. Metal oxide
$III$. $H_2 O$
$IV$. $CO$

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