ICSE-X-Chemistry

03: Acids, Bases and Salts

with Solutions -
  • #6
    Name the: (a) acidic anhydride of the following acids: (a) sulphurous acid  (a) nitric acid  (a) phosphoric acid (a) carbonic acid  (b) acids present in vinegar, grapes and lemon  (c) ion that turns blue litmus red, (c) ion that turns red litmus blue. 
    Ans : 6 (a) The anhydride of following acids are: (a) Sulphurous acid: SO2 (a) Nitric acid: N2O5 (a) Phosphoric acid: P2O5 (a) Carbonic acid : CO2 (b) Acids present in following are:
    Vinegar: Acetic acid
    Grapes: Tartaric acid and Malic acid
    Lemon: Citric acid (c) H+ ion turns blue litmus red. (c) OH- ion turns red litmus blue.
  • #6-a
    acidic anhydride of the following acids:
    Ans : The anhydride of following acids are:
  • #6-a-i
    sulphurous acid 
    Ans : Sulphurous acid: SO2
  • #6-a-ii
    nitric acid 
    Ans : Nitric acid: N2O5
  • #6-a-iii
    phosphoric acid
    Ans : Phosphoric acid: P2O5
  • #6-a-iv
    carbonic acid 
    Ans : Carbonic acid : CO2
  • #6-b
    acids present in vinegar, grapes and lemon 
    Ans : Acids present in following are:
    Vinegar: Acetic acid
    Grapes: Tartaric acid and Malic acid
    Lemon: Citric acid
  • #6-c-i
    ion that turns blue litmus red,
    Ans : H+ ion turns blue litmus red.
  • #6-c-ii
    ion that turns red litmus blue. 
    Ans : OH- ion turns red litmus blue.