प्रत्येक आवर्त का अन्तिम स – McqOptions

MCQOPTIONS

1.	प्रत्येक आवर्त का अन्तिम सदस्य होता है -
A.	एक धातु
B.	एक हैलोजन
C.	एक निष्क्रिय गैस
D.	एक उपधातु
Answer» D. एक उपधातु

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