2026 IGCSE - Acids, Bases and Salts

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Last updated 12:21 AM on 5/22/26
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12 Terms

1
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Acids react with reactive metals to produce…

a salt and hydrogen gas

2
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Acids react with bases to produce…

a salt and water

3
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Acids react with carbonates to produce…

a salt, water, and carbon dioxide gas

4
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Acids turn blue litmus paper…

red

5
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Acids turn methyl orange…

red

6
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Bases are…

oxides or hydroxides of metals

7
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Alkalis are…

soluble bases

8
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Alkalis turn red litmus paper….

blue

9
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Alkalis turn methyl orange…

yellow

10
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Using universal indicator will turn neutral substances…

green

11
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Using universal indicators will turn acidic solutions…

yellow, orange or red

12
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Using universal indicators will turn alkaline substances…

blue, purple or violet