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Question-1
Which of the following process works best near pH close to seven?
(A)
Our digestive system
(B)
Tooth enamel
(C)
Growth of plants
(D)
Conversion of milk into curd
Question-2
Many salts absorb water from atmosphere. This property is called:
(A)
Crystallization
(B)
Hydration
(C)
Deliquescence
(D)
Efflorescence
Question-3
Which of the following substances has the lowest pH value?
(A)
Sugar
(B)
Tomato juice
(C)
Vinegar
(D)
Washing soda
Question-4
Which one of the following compounds is a main constituent of washing powder?
(A)
Sodium chloride
(B)
Sodium carbonate
(C)
Bleaching powder
(D)
Sodium hydroxide
Question-5
Which of the following indicators is not an acid – base indicator?
(A)
Phenolphthalein
(B)
Vanilla
(C)
Litmus
(D)
Methyl orange
Question-6
The natural indicator among the following.
(A)
Phenolphthalein
(B)
Methyl orange
(C)
Methyl red
(D)
Litmus
Question-7
An element ‘X’ forms a solid oxide which dissolves in water. The solution formed gives a blue colour with litmus. X could be:
(A)
Sodium
(B)
Iron
(C)
Aluminum
(D)
Zinc
Question-8
Which of the following method is used to obtain chlorine and hydrogen from sodium chloride?
(A)
Electrolysis
(B)
Thermal heating
(C)
Evaporation
(D)
Electroplating
Question-9
One of the components of baking powder is:
(A)
Tartaric acid
(B)
Acetic acid
(C)
Oxalic acid
(D)
Citric acid
Question-10
An aqueous solution of which of the following substance will conduct electric current?
(A)
Ethyl alcohol
(B)
Acetic acid
(C)
Acetone
(D)
Ether
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Cambridge Secondary Grade 10
IGCSE
Practice in Related Chapters
Petrochemicals and Polymers
Planet Earth
The Nature of Matter
How Far? How Fast?
Chemical Bonding and Structure
Periodic Patterns
Acids, Bases and Salts
Chemical Change
Quantitative Chemistry
Patterns and Properties of Metals
Chemical Analysis and Experimentation
Elements and Compounds
Patterns and Properties of Non-metals
Industrial Inorganic Chemistry
Organic Chemistry
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