question_answer

  Four different mixtures in water are prepared using charcoal powder, chalk powder, slaked lime and detergent powder. Which of these (i) Would not leave residue on filter paper after filtration? (ii) Would show Tyndall effect? (iii) Would leave residue on filter paper after filtration. (iv) Would give transparent /clear solution

Answer:

                  (i) Detergent solution and slakedlime solution, (called lime water) will not leave any residue on filter paper after filtration. (ii) Detergent solution will show Tyndall effect. (iii) Charcoal power and chalk powder will leave residue on filter paper. (iv) Slaked lime will give transparent/clear solution.                                              ( x 4 = 2)