CSEC Chemistry

PPO Set 1

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Q1
Which method is BEST for obtaining pure water from salt water?
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Q2
The pH of a solution changes from 2 to 5. The solution has become
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Q3
Which property generally INCREASES down Group 1 (alkali metals)?
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Q4
Which type of structure is found in diamond?
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Q5
Which products are formed when an acid reacts with a carbonate?
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Q6
Which pair of elements are in the SAME group of the Periodic Table?
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Q7
Which process occurs when a gas changes directly to a solid?
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Q8
Which subatomic particle has a NEGATIVE charge?
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Q9
Which substance would turn red litmus paper blue?
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Q10
Which type of bonding involves TRANSFER of electrons from a metal to a non-metal?
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Q11
Which statement BEST describes an element?
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Q12
Which gas turns limewater milky?
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Q13
An atom has atomic number 17 and mass number 35. How many neutrons does it contain?
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Q14
Which substance is MOST likely to conduct electricity when SOLID?
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Q15
Which change would INCREASE the rate of reaction between a solid and an acid?
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