WorksheetsAcid , Bases and salt (class 7)
Total questions: 16
Worksheet time: 6mins
Water is acidic, basic or neutral ?
Acidic
Basic
Neutral
Both acid or neutral depending upon industries near it.
Which not property of acid ?
Turns blue litmus red
Corrasive in nature
Have bitter taste
Conducts electricity
Which is example of acid ?
Orange juice
Caustic soda
Baking soda
Salt
All bases are alkalis.
True
False
Malic acid is present in -
Apple
Tea
Vinegar
Ant
Indicator which don't show the substance is basic or neutral .
Litmus paper
Purple cabbage
Turmeric
None of these
________ is a substance whose value of pH is below then 7.0
Acidic
Basic
Neutral
Salt
In the solution of base red litmus turns blue ?
True
False
Common name of sodium bicarbonate is .
Common salt
Baking soda
Phitkari
Nitre
Salt solution in water is good conductor of electricity.
True
False
What are alkalis ?
Bases which can be dissolved in water
Acid which can dissolved in water
Anything that can be dissolved in water
All neutral substance
Name the reaction of an acid with a base to form a salt and water.
Reaction
Neutralization
Descaling
Digesting
Litmus paper is obtained from (a) .
Which of following is not use of sulphuric acid.
In fertilizers
In manufacturing chemicals
In car batteries
In detergents
Sodium hydroxide is _____________.
Base
Acid
Neutral
Salt
_________ is an indicator.
Phenolphthalein
Vinegar
Trinitrotoluene
Lotus petal
