9. Which of the following best explains the properties of a transition element? A. An element which is very hard, dense, and has a high melting point. B. An element which has a partly filled 'd' subshell and electrons in the 4s subshell. C. An element which shows more than one oxidation state and forms coloured compounds. D. A 'd' block element which forms at least one ion with a partially filled 'd' subshell.

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5 of 18
4
9.
Which of the following best explains the properties of a transition element?
A. An element which is very hard, dense, and has a high melting point.
B. An element which has a partly filled 'd' subshell and electrons in the 4s subshell.
C. An element which shows more than one oxidation state and forms coloured compounds.
D. A 'd' block element which forms at least one ion with a partially filled 'd' subshell.
10.
The pie chart shown in Figure 1 below represents the use of chlorine and its compounds in
the country Essos. If the sectors shown by the letters A, D and E represent herbicides,
polymers and aerosols respectively, which one of the following would Sector C most likely
not represent?
A. Sterilising drinking water.
B. Food preservatives.
C. Pesticides.
D. Bleaches.
E
4%
6%
30%
20%
В
40%
Figure 1: The use of chlorine and its compounds in the country Essos.
Transcribed Image Text:5 of 18 4 9. Which of the following best explains the properties of a transition element? A. An element which is very hard, dense, and has a high melting point. B. An element which has a partly filled 'd' subshell and electrons in the 4s subshell. C. An element which shows more than one oxidation state and forms coloured compounds. D. A 'd' block element which forms at least one ion with a partially filled 'd' subshell. 10. The pie chart shown in Figure 1 below represents the use of chlorine and its compounds in the country Essos. If the sectors shown by the letters A, D and E represent herbicides, polymers and aerosols respectively, which one of the following would Sector C most likely not represent? A. Sterilising drinking water. B. Food preservatives. C. Pesticides. D. Bleaches. E 4% 6% 30% 20% В 40% Figure 1: The use of chlorine and its compounds in the country Essos.
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