Which one of the following paires of elements is most likely to form an ionic compount?

B and

C I_{2}

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K and

O_{2}

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O_{2}

and

C I_{2}

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AI and

I_{2}

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Solution

The correct option is A K and $O_{2}$
$K$ and $O_{2}$ would form the ionic compound.
Because of the high electronegativity difference.
B is the correct answer.

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Similar questions

{CH}_{4} + O_{2} \overset{}{\to}

{CH}_{4} + {CI}_{2} \overset{Sunlight}{\to}

Which of these pairs of elements would be most likely to form an ionic compound?

N_{2} + O_{2} \to 2 N O △ H = X_{1}

2 C O + O_{2} \to 2 {C O}_{2} △ H = X_{2}

2 H_{2} O + O_{2} \to 2 {H_{2} O}_{2} △ H = X_{3}

P C I_{3} + {C I}_{2} \to P C I_{5} △ H = X_{4}

△ H_{f} = \frac{△ H}{2}

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