In the laboratory, temperatures above 200°C are not used in general because:

Fuel is wasted

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The glass apparatus may tend to break

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

The product formed sticks to the glass and difficult to remove.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

None of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct options are
A
Fuel is wasted

B
The glass apparatus may tend to break

C
The product formed sticks to the glass and difficult to remove.

Temperatures above 200°C are not used as:

Fuel is wasted

The glass apparatus may tend to break

The product formed sticks to the glass and difficult to remove.

Suggest Corrections

Similar questions

Q. (i) What is special feature of the apparatus that is used in the laboratory preparation of nitric acid?
(ii) Why should the temperature of the reaction mixture of nitric acid not be allowed to rise above 200°C?

In the laboratory, temperatures above 200°C are not used in general because:

In laboratory method of preparation,temperature is maintained $200^{0} C$ because,

Q. in the laboratory preparation of HClacid from Nacl and conc.hydrochloric acid the residual salt formed at temperature above 200 celsius forms a hard crust and sticks to the glass. give reason.

In the laboratory preparation of nitric acid, it can be obtained below $200^{\circ}$ C or above $200^{\circ}$ C, but the lower temperature is preferred. Which of the following reason(s) is /are correct?

i. The glass apparatus may break at a higher temperature.

ii. At lower temperature, potassium or sodium sulphate is formed, which cannot be easily removed from the apparatus.

Join BYJU'S Learning Program