Salt analysis class 11 practical PDF 

Salt analysis class 11 practical pdf: This article is based upon the practical of salt analysis, lets find out how is it done.

What is salt analysis

  • Find one acidic and one basic radical in the given salt.
  • Usually a salt contains at least one basic radical and one acidic radical.
  • Identification of various elements such as acidic radicals and basic radicals that are present in a salt is called as salt analysis.

Salt analysis class 11 practical pdf

We can identify 22 basic radicals and 14 acidic radicals,
The basic radicals are as follows:
1) Aluminium
2) Ammonium
3) Antimony
4) Arsenic
5) Barium
6) Bismuth
7) Cadmium
8) Calcium
9) Chromium
10) Cobalt
11) Copper
12) Ferric
13) Ferrous
14) Lead
15) Magnesium
16) Manganese
17) Mercury
18) Nickel
19) Strontium
20) Tin
21) Zinc
22) Silver
The acidic radicals are as follows:
1) Arsenide
2) Arsenate
3) Borate
4) Bromide
5) Carbonate
6) Chloride
7) Chromate
8) Fluoride
9) Iodide
10) Nitrate
11) Oxalate
12) Phosphate
13) Sulfide
14) Sulfate

Let’s look at an experiment to find one acidic and one basic radical in the salt.

Our aim in this experiment is to find one acidic and one basic radical in any given salts.
The materials required during this experiment are:
• Test-tube
• Beaker
• Test-tube stand
• Glass rod etc

Physical identification of salt

  • White salt
  • Soluble in water
  • Ammonia like odor
  • Procedure and observations

A- test for acidic radical experiment –
1- a pinch of salt added dilute h2 so4
observation- no observation
inference- dilute H2SO4 group absent i.e., CO2-3, S2-, SO2-3 NO2- absent –

2- another pinch of salt added concentrated H2SO4
observation- no observation
inference- concentrated H2SO4 group absent that is CL-, BR-, I-, CH3COO- NO3- absent, or SO4 2- or PO4 3- may be present.

3- to the aqua solution of salt added BaCL- in the presence of dilute HCl.
observation- white precipitate obtained BaSO4
SO4 2- confirmed

4- to the aqua solution of salt add lead acetate in presence of dilute acetic acid
observation-
white precipitate of PbSO4 obtained
SO4 2- confirmed

Test Four Basic Radical Experiment –

Experiment 1- A pinch of salt and dry test-tube added dilute NaOH solution.
Observation- smell of NH3
Inference- group zero may be present NH4+ may be present

2- Bring the glass rod dipped in dilute HCl near the mouth of test tube
Observation-
Dense white fumes of NH4Cl observed
NH+4 confirmed.

3- bring a filter paper dipped in nessler’s reagent near the mouth of the test tube
observation- filter paper turns brown due to formation of complex iodide of millon base.
NH+4 confirmed
Result-
1- The given salt contains acidic radical SO42-
2- basic radical NH4+

 

salt analysis class 11 practical pdf
salt analysis class 11 practical file

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