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Acids, Bases, and Salts - SS1 Chemistry Past Questions and Answers - page 1

1

Acids taste:

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A

Sweet

 

B

Salty

 

C

Sour

 

D

Bitter

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2

Which of the following is not a property of acids?

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A

React with metals to produce hydrogen gas

 

B

Turn litmus paper blue

 

C

Conduct electricity in solution

 

D

React with bases to form salts and water

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3

Which of the following is a property of bases?

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A

React with acids to form salts and water

 

B

Turn red litmus paper blue

 

C

Release hydrogen gas when mixed with water

 

D

Have a sour taste

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4

Bases feel:

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A

Oily

 

B

Dry

 

C

Sticky

 

D

None of the above

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5

Acids have a pH value:

 

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A

Less than 7

 

B

Exactly 7

 

C

Greater than 7

 

D

Can be any value

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6

Which of the following is a property of both acids and bases?

 

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A

React with metals

 

B

React with water

 

C

Conduct electricity

 

D

All of the above

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7

Which of the following is a property specific to bases?

 

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A

React with carbonates to produce carbon dioxide gas

 

B

Turn phenolphthalein pink

 

C

React with oxygen to produce water

 

D

React with non-metals to produce salts

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8

Acids are proton:

 

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A

Acceptors

 

B

Donors

 

C

Neutralizers

 

D

Inhibitors

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9

Which of the following is a property of strong acids?

 

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A

Partially ionise in water

 

B

Produce a low concentration of hydrogen ions

 

C

Conduct electricity weakly

 

D

Completely ionise in water

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10

Which of the following is a property of weak bases?

 

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A

Completely dissociate in water

 

B

React vigorously with acids

 

C

Produce a high concentration of hydroxide ions

 

D

Partially ionise in water

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