Pranjal went to her friend’s house and bring a black ink and a special kind of paper with her. Her friend asked her about that paper. Pranjal perform an activity with the paper by applying the dot of ink on it. And, placed the paper in ajar of water in such a way that the dot just touched the upper level of water. Finally, they observed the separation of different coloured constituents of that ink.
A. Name the technique used by Pranjal.
B. Describe the technique mentioned and name the paper used.
C. Write some other applications of this technique.
D. Write the values shown by Pranjal.
Answer:A
Pranjal went to her friend’s house and bring a black ink and a special kind of paper with her. Her friend asked her about that paper. Pranjal perform an activity with the paper by applying the dot of ink on it. And, placed the paper in ajar of water in such a way that the dot just touched the upper level of water. Finally, they observed the separation of different coloured constituents of that ink.
A. Name the technique used by Pranjal. B. Describe the technique mentioned and name the paper used. C. Write some other applications of this technique. D. Write the values shown by Pranjal.