TO ANALYSE THE GIVEN SALT BY USING THE SPOT TEST ANALYSIS RADICALS: Cu+2,Pb+2, Fe+2, 2n+2, Ni+2

APPARATUS REQUIRED

Burner

wath glass

Test tube and holders

Glass tube

THEORY:

Spot test is a chemical test a simple andefficient technique where analytic assays are executed in only one or few drop of chemical solution Preferably in greed piece of filter of filter paper without soptiisticated instrumentation. It is conducted on spot to yield immediate using any ducted on a test results. It may be performed either on a spot plate, micro crucible or on a filterpaper (drop reat paper).

Spot test for some cation (basic radicals)

Name of Test	Experiment	Observation
Test for cu++ with ammonia   (NH4OH) Reagent: Liquor ammonia	A little amount of cupric II salt solution  was taken in a test tube and NH4OH was added	Adeep blue solution was observed (Nickel salt may be insterfere
2. Test for pb++Reagent: dil Hcl And KI	A little of test tube solution was taken in a test tube Dil. HCL was added	pb++ cl- pbcl2 white ppt was obtain. which dissolved on heating but reappeared as needle shoped crystalsen cooling.
3.Test for Fe++ potassium  ferocynide. [K4Fe(CN)6]	Placed a little amount of test tube solution in test fube and added drops of potassium ferrocyanide	A blue spot of terric ferrocyanide Indicate  to the presence of Fe was confirmed.
4. Test for 2n+2 with H₂ser (NH4)2S	1-2 drops of test soln. was taken in test tube dil.acetic acid to acid acidify then H₂s water was added.	white ppt. was observed.
5. Test Test for Ni++ Dimethyl glyoxime (C4H3O2N2)51% DMG solution in ethanol.	A drop of test soln. and (DMG) reagend was taken in test tube then added drops of dilute ammonia soln.	A red spot precipi- tate was formed.

RESULT:

Hence, Cout2, 2n +2, Fe+2, Ni +2, Pb+2) are
Some of the basic radicale that we have
analysed using spot test analysis radicals.

CONCLUSION:

We can analyse the given salt by using
applysis redcals.cu++, zn++, Fe++, pb++).