Worksheet - Chapter-Iii Acids, Bases and Salts (2024-25)
Worksheet - Chapter-Iii Acids, Bases and Salts (2024-25)
Worksheet - Chapter-Iii Acids, Bases and Salts (2024-25)
WORKSHEET – 3
COLUMN I COLUMN II
a) Dry HCl gas does not change the colour of dry litmus paper.
b) Acetic acid is a monobasic acid.
c) All alkalis are bases but all bases are not alkali.
d) Phosphorous acid is not a tribasic acid.
e) Acid salts show the properties of acid.
f) Lead carbonate does not react with dil. HCl.
g) Aluminium hydroxide dissolves in excess of alkali.
h) Sodium and potassium carbonate do not decompose on heating.
i) The hydroxides of Aluminum dissolve in excess of NaOH, but the salts of other hydroxides do
not.
j) Tribasic acids can form two different acid salts and one normal salts.
a) NaH2PO4 is an example of a compound called ------------- (Acid salt/ basic salt/ normal salt)
b) The acid which is present in Apple -------------- (malic / citric/ lactic acid)
c) The acid which is present in fat ----------------- (Butyric / acetic / oxalic acid)
e) A base which does not contain metal ion --------- (Mg(OH)2 , NH4OH,NaOH)
f) An acid is a compound which when dissolved in water forms hydronium ions as the only ------
ions. A base is a compound which is soluble in water contains ------ ions. A base reacts with an
acid to form a ------- and water only. This type of reaction is known as ---------------------.
h) The basic salt contains a ---------cation(Metal / Non-metal), a hydroxyl ion of the base and an -----
i) ---------------- salts have no ionisable hydrogen atoms. ( Acid / base / Normal salts)
Q.7. Write the balanced equations for the preparation of the following salts in the laboratory: (5 marks)