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Question 1 of 11
1. Question
1 point(s)CHEM10202080
In an atom, the number of electrons is equal to the- 1.
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Question 2 of 11
2. Question
1 point(s)CHEM10202110
The table below shows the melting point and boiling points of five compounds P, Q, R, S and T. Which substance exists as a liquid at room temperature?Substance Melting point(°C) Boiling point(°C) P -185 -18 Q -40 45 R 10 500 S 45 900 T 800 3000 - 1.
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Question 3 of 11
3. Question
1 point(s)CHEM10202040
Which of the following match is not true?- 1.
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Question 4 of 11
4. Question
1 point(s)CHEM10202060
The table above shows the properties of subatomic particles P, Q and R. Name P, Q and R.
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Question 5 of 11
5. Question
1 point(s)CHEM10202100
Based on the information in the table above, which of the following pair of particles are isotopes?
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Question 6 of 11
6. Question
1 point(s)CHEM10202030
Which of the following statement is true about Neils Bohr’s atomic model?- 1.
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Question 7 of 11
7. Question
1 point(s)CHEM10202050
Which of the following shows the correct relative mass and charge of the subatomic particles?- 1.
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Question 8 of 11
8. Question
1 point(s)CHEM10202020
The table below shows the meting point and boiling point of substances P, Q, R and S. Which of the substance is solid at room temperature (25 °C)
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Question 9 of 11
9. Question
1 point(s)CHEM10202090
The number of subatomic particles in particle P and Q is as below.
Which of the following statement is true about particle P and Q?
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Question 10 of 11
10. Question
1 point(s)CHEM10202020
Substance X exists as a liquid at a temperature of 85°C. What is the most likely melting point and boiling point of substance X?- 1.
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Question 11 of 11
11. Question
1 point(s)CHEM10202070
The figure above is the symbol of sulphur element. Which of the following is true about the symbol?
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