14. Arrange the elements C,O, and H in order of increasing clectronegativity 15.

Question

14. Arrange the elements C,O, and H in order of increasing clectronegativity 15. Which one of the following is not isoelectronic with Kr? C) Rb D) Se2+ E) Br t6. Ibuprofen is used as an analgesic for the relief of pain, and also to help redace fever. What is the hyberidiration state of carbon A) sp C) sp3 D) spid 17. Which of the bonds below would have the greatest polarity (i.e, highest percent ionic character)? Which one of the following elements is not a transition element? copper chromium indium ungsten 19. Which of the Sollowing elements has the greatest electron affinity (largest positive value)? A) Mg B) Al C) Si DI P

Explanation / Answer

13)

electronegativity of C is slightly more than H

O is most electronegative here

Answer: B

14)

Kr has 36 electrons

As3+ will have 30 electrons

Se2- will have 36 electrons

Rb2+ will have 36 electrons

Sr2+ will have 36 electrons

Br- will have 36 electrons

As3+ is not isoelectronic with Kr

Answer: As3+

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