Question

For what conical flask is used

Answer 1

Conical Flasks come in a wide range of sizes, materials and uses. Commonly used laboratory flasks include: An Erlenmeyer flask, conical, or E-flask which is one of the most commonly used flasks in scientific laboratories. The flask has a conical base that almost extends into a small, cylindrical neck.
This is the main reason why these types of flasjs are used.
Another reason is that they are more efficient than normal flasks.

Answer 2

The conical flask is used for

Heating substances
Indicate the volume of its contents
Hold chemicals.

The conical flask is also used to carry out specific experiments with chemicals in labs.

Hope it helps.

Good luck.