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Substances like curd, vinegar, etc taste sour because they contain ______.
The chemical nature of the substances containing acid is known as ______.
The word acid comes from a Latin word ______.
The substances tasting bitter and feel soapy when handled are called ______.
The chemical nature of bases is called _______.
The substances used to test the acidic or basic nature are known as _______.
Which among these is a naturally occurring indicator?
The petals of china rose are also known as _______.
Acetic acid is found in _______.
Which acid is found in an ant’s sting?
Fruits like oranges and lemons contain ______ acid.
Which acid is found in curd?
Spinach contains ______ acid.
A fruit called ‘amla’ contains _____ acid.
Which acid is found in tamarind and grapes?
Which base is found in lime water?
The bases like potassium and ______ hydroxides are present in soaps.
Which base does the milk of magnesia contain?
The natural indicator litmus is extracted from _______.
The litmus paper changes its colour to red when added to a ______ solution
When the litmus paper is added to a basic solution it changes its colour to _______.
The litmus paper is available in two colours which are _____ and _____.
The solutions which do not have any effect on the change in colour of a litmus paper are called ______.
The china rose indicator turns the acidic solution into ______ colour.
The china rose indicator changes the basic solutions into ______ colour.
The rains having excess acids are termed as ____.
How many types of acids are responsible for acid rain?
Which among these indicators is used in acid-base titrations?
Phenolphthalein turns _______ when dissolved into acidic solution.
Which among these indicators turns pink when it is reacted to a basic solution?
The resultant of the mixture of an acid and a basic solution is known as ________.
The reaction between an acid and a base is called ________.
Too much acid in our stomach causes _________.
The effect of formic acid can be neutralized by applying substances containing ________.
Which neutralizer does the calamine solution contain?
Which acid do the cells of our body contain?