HSC Chemistry - Important One Mark Questions

Question set 4, with 10 important one mark questions in Chemistry (+2 Chemistry)

1) The hybridization in $ SF_{6} $ molecule is:

a) $ sp^{3} $
b) $ sp^{3}d^{2} $
c) $ sp^{3}d $
d) $ sp^{3}d^{3} $

2) The bond order in the Oxygen molecule is:

a) 2
b) 2.5
c) 3
d) 1

3) Among the following, which has the highest electro negativity value?

a) F
b) Cl
c) Br
d) I

4) The compound with garlic taste is:

a) $ P_{2}O_{3} $
b) $ P_{2}O_{5} $
c) $ H_{3}OO_{3} $
d) $ H_{3}PO_{4} $

5) Copper is extracted from:

a) cuprite
b) copper glance
c) malachite
d) copper pyrites

6) Which one of the following ions produces color?

a) $ Sc^{3+} $
b) $ Cu^{+} $
c) $ Zn^{2+} $
d) $ V^{3+} $

7) Maximum oxidation state exhibited by Lanthanides is:

a) +2
b) +1
c) +3
d) +4

8) Which is used in optical lenses?

a) $ LaO_{2} $
b) $ CeO_{2} $
c) $ TiO_{2} $
d) $ ZrO_{2} $

9) An example of a chelting ligand is:

a) $ NO_{2} $
b) Chloro
c) Bromo
d) en

10) The reaction $ _{5}Be^{8}\rightarrow \; _{4}Be^{8} $ takes place due to:

a) $ \alpha $ – decay
b) $ \beta $ – decay
c) electro capture
d) positron decay