give chemical test to distinguish between; (a) dil.H2SO4 and dil.HCL. (b)dil.sulphuric acid and conc. sulphuric acid.
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BaCl₂ test:
When we add a solution of BaCl₂ to both dil H₂SO₄ and dil. HCl, than white percipitate are formed by H₂SO₄ which is BaSO₄. While dilute HCl will not react with it.
Kl test:
To distinguish between Dil H₂SO₄ and Conc HCl, we will add Kl to both. H₂SO₄ will remain unchanged. and brown fumes are I₂ are seen from conc HCl solution
When we add a solution of BaCl₂ to both dil H₂SO₄ and dil. HCl, than white percipitate are formed by H₂SO₄ which is BaSO₄. While dilute HCl will not react with it.
Kl test:
To distinguish between Dil H₂SO₄ and Conc HCl, we will add Kl to both. H₂SO₄ will remain unchanged. and brown fumes are I₂ are seen from conc HCl solution
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Explanation:
when a glass rod dipped in Ammonia solution bring near the test tube containing dilute sulphuric acid no such dense films are given but when again a glass rod is dipped in Ammonia solution bring other test tube of hydrochloric acid then it will give a dense white fumes .
andand dilute sulphuric acid when treated with zinc gives hydrogen gas which burns with a pop sound and concentratedconcentrated sulphuric acid gives H2 gas which turns acidified potassium dichromate paper green which shows the reducing property of SO^2.
hope this answer helps u
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