2018/19 Questions Compilation for CHM 132

1) Which is isoelectronic to C⁴+.

A. N³-

B. H–

C. Be+

D. B²+

2) Which is not part of Dobereiners triads.

A. Ca, Cl, Br.

B. Cl, Br, I

C. Se, S, Te

D. Ba, Sr, Ca

3) Which is true concerning Dobereiners triads.

A. Elements in the triads have the same valence electrons.

B. The average of the atomic weights of the first and second elements equals the atomic weight of the third element in a triad

C. Elements in the same triad have the same atomic weights

D. Elements in the same triad has the same number of shells

4) Which block contains the most kinds of elements.

A. S-block

B. d-block

C. f-block

D. p block

5) The s-block elements that is/are nonmetal is/are.

A. Hydrogen and Helium

B. Hydrogen and mercury

C. Boron and Silicon

D. All s-block elements are metals

6) Which cannot undergo resonance.

A. SO4²-

B. NO3-

C. CH4

D. C6H6

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