Assertion (A) The most suitable method of printion with disperse dyes is transfer printing.
Reason (R) Disperse dyes sublime when hearted to high temperature.

Solution (By Examveda Team)

The correct answer is Option B: Both A and R are correct

Let's break down why:

Assertion (A): The most suitable method of printing with disperse dyes is transfer printing.
This is TRUE.
Disperse dyes are a type of dye that are commonly used on synthetic fabrics like polyester.
Transfer printing is a great method for disperse dyes because it uses heat to transfer the dye onto the fabric.

Reason (R): Disperse dyes sublime when heated to high temperature.
This is also TRUE.
Sublimation means that a substance goes directly from a solid to a gas, skipping the liquid phase.
Disperse dyes do this when heated, which is what makes transfer printing work so well.

Why it works together:
Because disperse dyes sublime when heated, we can use that property in transfer printing.
The dye is printed onto a special paper and then heat is applied.
The dye turns into a gas and transfers onto the fabric, creating the print.

Therefore, both the assertion and the reason are correct, and the reason explains why the assertion is true.