Could you suggest various materials which can be used for writing the message on the white sheet Class 7

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Science Class 7 Science 151 views May 21, 2026 Reviewed & updated Sep 17, 2026
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Could you suggest various materials which can be used for writing the message on the white sheet Class 7

Could you suggest various materials which can be used for writing the message on the white sheet of paper (given at the beginning of the chapter) and what could be in the spray bottle? Make a table of various possible combinations and the colour of the writing obtained. Class 7

Answer:

Below is the table of various possible combinations.

Note: The colour of the writing will depend on the nature of the writing material (acidic or basic) and the solution in the spray bottle (acidic or basic). The colour shade red includes, pink, purple, magenta, same like blue includes bluish green, green yellowish.

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