Unit 8 โ Chemical Reactivity
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Unit 8 โ Chemical Reactivity
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Question 1 of 11
1. Question
Metals can form ions carrying charges:
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Question 2 of 11
2. Question
Which one of the following metals burn with brick red flame when heated in air?
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Question 3 of 11
3. Question
Sodium is extremely reactive metal, but it does not react with:
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Question 4 of 11
4. Question
Which one the following is the lightest and floats on water:
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Question 5 of 11
5. Question
Pure alkali metals can be cut simply by knife but iron cannot because of alkali metals have:
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Question 6 of 11
6. Question
Which of the following is less malleable?
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Question 7 of 11
7. Question
Metals lose their electrons easily because:
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Question 8 of 11
8. Question
Which one of the following is brittle?
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Question 9 of 11
9. Question
Which one of the following non-metal is lustrous?
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Question 10 of 11
10. Question
Non-metalsare generally soft, but which one of the following is extremely hard?
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Question 11 of 11
11. Question
Which one of the following will not react with dilute HCI?
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