MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Thermoplastics

Preethi was u...

Question

Preethi was unable to penetrate a hot pin through a pipe made out of one of the following materials. The pipe is most probably made of ________.

A

bakelite

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

B

PVC

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

C

polythene

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

D

PET

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

Open in App

Solution

The correct option is A bakelite
Bakelite is a thermosetting plastic and is a poor conductor of heat and electricity. It does not allow a hot metal pin to pass through it. This hot pin test can be used to check if a given substance is made of bakelite or not.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Preethi was unable to penetrate a hot pin through a pipe made out of one of the following materials. The pipe is most probably made of ________.

Q. (a) Figure shows a cross-section of a light pipe made of a glass fibre of refractive index 1.68. The outer covering of the pipe is made of a material of refractive index 1.44. What is the range of the angles of the incident rays with the axis of the pipe for which total reflections inside the pipe take place, as shown in the figure.

(b) What is the answer if there is no outer covering of the pipe?

Q. A drum can be filled with oil with a supply pipe in 40 minutes. A gain the full drum cam be made empty by another pipe in 60 minutes, When

\frac{1}{2}

part of the drum was filled, the second pipe was. opened and it was stopped after 15 minutes. if the supply pipe is opened how, time required to fill the drum is

Q. A cylindrical pipe is made from a metal sheet of length 88 cm and breadth 20 cm. What is the volume of this pipe?

Q. A magnet is brought near three pins X, Y and Z made up of three different materials.

Which option is the most suitable regarding the material used to make pins X, Y and Z?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Plastic Attack Alert

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard VIII Chemistry

Join BYJU'S Learning Program

CrossIcon