Question

Select the correct acid, base or salt from the list in bracket for each of the statements given below:

1. A salt prepared by neutralization in which titration is involved is…….. (MgCl₂ / CaCl₂ / NH₄Cl / CuCl₂ )

2. An insoluble salt prepared by direct combination or synthesis is……. [FeCl₃ / FeSO₄ / FeS/Fe(NO₃)₂]

3.  A salt prepared by precipitation i.e. by double decomposition of two salt solutions is………… (Na₂SO₄ /PbSO₄ / ZnSO₄ / CuSO₄)

4. A salt prepared by simple displacement i.e. action of dilute acid on a metal is____ (PbCl₂ / CuCL, AlCl₃ / HgCl)

5.  Decomposition of calcium hydrogen carbonate with…. [dil. HNO₃ /dil. HCl/dil. H₂SO₄] results in formation of calcium chloride.

6.  Action of dilute acid on a metallic sulphide results in evolution of____ [SO₂ /H₂S/CO₂ ] gas.

7.  A salt which on hydrolysis produces a neutral solution is……. (sodium chloride / ammonium chloride / sodium carbonate)

Answer 1

1. NH₄Cl

2. FeS

3. PbSO₄

_4. AlCl₃

5. dil.HCl

6.  H₂S

7.  Sodium chloride