The reaction between an acid and a base is known as _______________ reaction.
Neutralisation
Addition
Substitution
Combustion
Which of the following gives the correct increasing order of acid strength?
Water< acetic acid < hydrochloric acid
Water < hydrochloric acid < acetic acid
Acetic acid < Water < hydrochloric acid
hydrochloric acid < Water < Acetic acid
Which of the following salts does not contain water of crystallization?
Blue vitriol
Baking soda
Washing soda
Gypsum
An aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change.
Baking power
Lime
Ammonium hydroxide solution
Hydrochloric acid
A solution turns red litmus blue, its pH is likely to be
1
4
5
10
The acid present in ant's sting is
Citric acid
Acetic acid
Lactic acid
Formic acid
The pH of the gastric juices released during digestion is
less than 7
more than 7
equal to 7
equal to 0
Which one of the following can be used as an acid- base indicator by visually impaired student?
Litmus
Turmeric
Vanilla essence
Petunia leaves
Which of the following statement is not correct.
All metal carbonates react with acid to give a salt, water and carbon dioxide.
all metal oxides react with water to give salt and acid
Some metals reacts with acids to give salt and hydrogen
Some non- metal oxides react with water to form an acid
The solutions which do not change the colour of either red or blue litmus are known as
Basic
Acidic
Neutral
Indicator
