Question

excess of stain from the slide can be removed by
1. using a muslin cloth
2. using a handkerchief
3. using a blotting paper
4. using a cotton ball​

Answer 1

Excess of stain from the slide can be removed by using a blotting paper

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Jai hind

Answer 2

Excess of stain can be removed from the slide with the help of the blotting paper

Explanation:

It is because this paper acts as a good absorber and can remove excess liquid substances from the surface of the objects.  

The blotting paper is prepared with the help of the rice ingredient which is highly porous and helps in the removal of excess oils if they are present in surface of any object especially slides or writing paper.