This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
Which of the following is used for removing air bubbles from glass during its manufacture?
Correct!
Wrong!
In vulcanization, natural rubber is heated with?
Correct!
Wrong!
How does common salt help in separating soap from the solution after saponification?
Correct!
Wrong!
Rayon is chemically?
Correct!
Wrong!
The type of glass used in making lenses and prisms is?
Correct!
Wrong!
Quartz crystals normally used in quartz clocks etc. is chemically ?
Correct!
Wrong!
Which type of fire extinguisher is used for petroleum fire?
Correct!
Wrong!
Which of the following is a protein?
Correct!
Wrong!
Science Quiz 92
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