CO 2 and SO 2 gas can be distinguished using : 1. moist blue litmus paper 2. lime water 3. acidified K 2 Cr 2 O 7 paper 4. none of the above.

acidified K 2 Cr 2 O 7 (potassium dichromate) paper Reason There is no effect of CO 2 gas on potassium dichromate whereas SO 2 turns acidified potassium dichromate from orange to clear green. K 2 Cr 2 O 7 + H 2 SO 4 + 3SO 2 K 2 SO 4 + Cr 2 (SO 4 ) 3 + H 2 O

Chemistry

CO₂ and SO₂ gas can be distinguished using :
moist blue litmus paper
lime water
acidified K₂Cr₂O₇ paper
none of the above.

Practical Chemistry

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Answer

acidified K₂Cr₂O₇ (potassium dichromate) paper

Reason

There is no effect of CO₂ gas on potassium dichromate whereas SO₂ turns acidified potassium dichromate from orange to clear green.

K₂Cr₂O₇ + H₂SO₄ + 3SO₂ ⟶ K₂SO₄ + Cr₂(SO₄)₃ + H₂O

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Chemistry

CO₂ and SO₂ gas can be distinguished using :
moist blue litmus paper
lime water
acidified K₂Cr₂O₇ paper
none of the above.

Practical Chemistry

Answer

Related Questions

How will the addition of barium chloride soln. help to distinguish between dil. HCl and dil. H₂SO₄.

The salt which in solution gives a pale green ppt. with NaOH soln. and a white ppt. with barium chloride solution is :
Iron (III) sulphate
Iron (II) sulphate
Iron (II) chloride
Iron (III) chloride

Identity the substance 'R' based on the information given below : The pale green solid 'R' turns reddish brown on heating. It's aqueous solution gives a white precipitate with barium chloride solution. The precipitate is insoluble in mineral acids.

Give one test each to distinguish between the following pairs of chemical solutions:
(i) ZnSO₄ and ZnCl₂
(ii) FeCl₂ and FeCl₃
(iii) Calcium nitrate soln. and Calcium chloride soln.

Chemistry

CO2 and SO2 gas can be distinguished using :moist blue litmus paperlime wateracidified K2Cr2O7 papernone of the above.

Practical Chemistry

Answer

Related Questions

How will the addition of barium chloride soln. help to distinguish between dil. HCl and dil. H2SO4.

The salt which in solution gives a pale green ppt. with NaOH soln. and a white ppt. with barium chloride solution is :Iron (III) sulphateIron (II) sulphateIron (II) chlorideIron (III) chloride

Identity the substance 'R' based on the information given below : The pale green solid 'R' turns reddish brown on heating. It's aqueous solution gives a white precipitate with barium chloride solution. The precipitate is insoluble in mineral acids.

Give one test each to distinguish between the following pairs of chemical solutions:(i) ZnSO4 and ZnCl2(ii) FeCl2 and FeCl3(iii) Calcium nitrate soln. and Calcium chloride soln.

CO₂ and SO₂ gas can be distinguished using :
moist blue litmus paper
lime water
acidified K₂Cr₂O₇ paper
none of the above.

How will the addition of barium chloride soln. help to distinguish between dil. HCl and dil. H₂SO₄.

The salt which in solution gives a pale green ppt. with NaOH soln. and a white ppt. with barium chloride solution is :
Iron (III) sulphate
Iron (II) sulphate
Iron (II) chloride
Iron (III) chloride

Give one test each to distinguish between the following pairs of chemical solutions:
(i) ZnSO₄ and ZnCl₂
(ii) FeCl₂ and FeCl₃
(iii) Calcium nitrate soln. and Calcium chloride soln.