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Ionic Bond

Three element...

Question

Three elements $A, B, C$ belong to $I I A, I V A, V I A$ group respectively of the periodic table. Identify the elements that form covalent bonds and that form electrovalent bond respectively?

A

and

B

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B

and

C

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C

and

B

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None of the above

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Solution

The correct option is C $B$ and $C$
Three elements $A, B, C$ belong to $I I A, I V A, V I A$ group respectively of the periodic table. The elements of group IVA form covalent bonds. The elements of groups IIA (alkaline earth metals) and group VIA (halogens) form electrovalent bond.

Thus, carbon (group $I V A$ element) forms covalent compounds. Magnesium (group $I I A$ metal) and oxygen (group $V I A$ non metal) forms ionic compound $M g O$ .

$A$ and $C$ form electrovalent bonds whereas $B$ forms covalent bond.

Hence, option $B$ is correct.

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Q. Three elements

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belong to the same group of the modern periodic table such that the difference in atomic weight of

A

and

B

is equal to the difference in atomic weight of

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Three elements A,B,C belong to IIA,IVA,VIA group respectively of the periodic table. Identify the elements that form covalent bonds and that form electrovalent bond respectively?

Three elements $A, B, C$ belong to $I I A, I V A, V I A$ group respectively of the periodic table. Identify the elements that form covalent bonds and that form electrovalent bond respectively?