CBSE Class 10 Answered

Role in the preparation of temporary mount of a leaf peel to show stomata:

Glycerine:

• It is a good dehydrating agent and prevents the specimen from drying out.
• Due to its refractive nature, it tends to reflect the light better and as a consequence, the specimen can be clearly observed under the microscope. 

Safranin:

• It stains the lignin and suberin and other plant materials easily.
• It imparts a red colour to the cells and tissues, thereby highlighting them when seen under the microscope.