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WorksheetsAcid, Bases and Salts
Total questions: 12
Worksheet time: 10mins
What is the chemical nature of acids>
Basic
Who knows
Acidic
It dosen't have one
Examples of acidic substances
Curd
Lemon juice
Baking Soda
Cucumber
What are bases?
The substances which are bitter in taste and soapy in touch.
The substances which are sour in taste.
Acidic
Basic
Indicators are not used to test a substance whether it is acidic or basic: True or False?
True
False
Which of these is a base?
Hydrochloric acid
Citric acid
Oxalic acid
Sodium hydroxide
Ascorbic acid is found in citrus fruits, (a) , etc.
In a substance, if the blue litmus paper turns red, then the substance is said to be _________.
Basic
Acidic
Neither
Both
Which of these are natural indicators?
Turmeric
China rose
Litmus paper
Phenolphthalein
Methyl orange
If china rose extract is added to a substance and it turns to dark pink (magenta), what kind of substance is that?
Neutral
Acidic
Basic
Both
What is neutralisation?
What is the reaction of neutralisation?
Acid+Base = Salt+Water
Salt+Water = Acid+Base
The wastes of many factories contain acids. Therefore, they are neutralised by adding basic substances: True or False?
True
False
