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Question

Which of the following pair of elements do not resemble according to Newlands' arrangement?

A
Lithium and sodium
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B
Beryllium and magnesium
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C
Boron and silicon
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D
Oxygen and selenium
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Solution

The correct option is B Boron and silicon

Boron and silicon do not lie in the same group so they do not resemble or have similar properties according to Newlands' arrangement.

Hence, correct option is C.

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