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Class 7
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Chemistry
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Acids, Bases and Salts
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Acids and Bases
Acids and Bases
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Identifying Acids and Bases Around Us
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Identifying Acids and Bases Around Us
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Identifying Acids and Bases
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Important Questions
Which comparison is not correct as indicated?
Medium
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Which of the following is not a property of acid?
Medium
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What is an acid? Write four properties of acids by giving examples.
Medium
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Write three differences between acids and bases.
Medium
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You are provided with four test tubes containing sugar solution, baking soda solution, tamarind solution, salt solution. Write down an activity to find the nature (acidic/basic/neutral) of each solution.
Medium
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Match the substances in Column I with those in Column II
Column I
Column II
a) Tartaric acid
i) Soap
b) Calcium hydroxide
ii) curd
c) Formic acid
iii) Unripe mangoes
d) Sodium hydroxide
iv) Ant's sting
e) Lactic acid
v) Lime water
Easy
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State whether the following statement is true or false, correct
if false.
All substances are either acidic or basic.
Medium
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Which of the following acid is present in the sting of an ant?
Easy
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A
substance that dissolves in water to furnish
H
+
ions is called an acid.
Medium
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State whether the statement is true or false:
Fizzy drinks are basic.
Easy
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