Chemistry-3-Elements

Chemistry Multiple Choice Questions (MCQs) and Answers with explanation on Elements for SSC, PCS, UPSC, IAS, NTSE, CLAT, Railways, NDA, CDS, Judiciary and other examinations of India.

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1.
Which of the following is the most active chemically?
2.
Which among the following is a Noble Gas?
3.
Which among the following is the correct decreasing of bio elements in Human Body?
4.
How many electrons can the s-orbital accommodate?
5.
Which of the following alkali metal ions has the highest hydration enthalpy?

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