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Middle School: 6th, 7th and 8th Grade
Science
Acids And Alkalis
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Q.1
Which of the following pH numbers indicate a strong alkali?
0%
1
0%
5
0%
9
0%
14
Q.2
What color is universal indicator in strong acid?
0%
Green
0%
Orange
0%
Purple
0%
Red
Q.3
What color is universal indicator in a strong alkali?
0%
Green
0%
Orange
0%
Purple
0%
Red
Q.4
Which of the following pH numbers indicates a neutral substance?
0%
1
0%
5
0%
7
0%
14
Q.5
Which of the following acids do we have in our stomach?
0%
Ethanoic acid
0%
Hydrochloric acid
0%
Nitric acid
0%
Sulphuric acid
Q.6
Strong acids and strong alkalis are.......
0%
Able to turn blue litmus paper red
0%
Corrosive and/or caustic
0%
Sour
0%
Sweet
Q.7
Which of the following substances contain acid?
0%
An orange
0%
Bleach
0%
Distilled water
0%
Washing powder
Q.8
What color is universal indicator in a neutral solution?
0%
Green
0%
Orange
0%
Purple
0%
Red
Q.9
Which of the following substances contain an alkali?
0%
Baking powder
0%
Coca cola
0%
Distilled water
0%
Vinegar
Q.10
Which of the following pH numbers indicates a strong acid?
0%
1
0%
5
0%
7
0%
14
0 h : 0 m : 1 s
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