Which one of the following molecules contains | vedclass

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(B) An ionic bond is formed by the electrostatic attraction between oppositely charged ions,while a covalent bond is formed by the sharing of electron

Vedclass · Accepted Answer

$K_2SO_4$

Vedclass · Answer

(B) An ionic bond is formed by the electrostatic attraction between oppositely charged ions,while a covalent bond is formed by the sharing of electrons between atoms.In $K_2SO_4$ (potassium sulfate),the compound consists of $K^+$ ions and $SO_4^{2-}$ polyatomic ions,which are held together by ionic bonds.Within the sulfate ion $(SO_4^{2-})$,the sulfur atom is covalently bonded to the four oxygen atoms.Therefore,$K_2SO_4$ contains both ionic bonds (between $K^+$ and $SO_4^{2-}$) and covalent bonds (within the $SO_4^{2-}$ ion).

Column $I$ (Molecules)	Column $II$ (Number of lone pairs on central atom)
$A. \ NH_3$	$1. \ \text{Two}$
$B. \ H_2O$	$2. \ \text{Three}$
$C. \ XeF_2$	$3. \ \text{Zero}$
$D. \ CH_4$	$4. \ \text{Four}$
	$5. \ \text{One}$

Which one of the following molecules contains both ionic and covalent bonds?

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