P Block Elements Question 509

Question: Which of the following cuts ultraviolet rays

[AFMC 2004]

Options:

A) Soda glass

B) Crooke’s glass

C) Pyrax

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

Crook’s glass is a special type of glass containing cerium oxide. It does not allow the passage of ultra violet ray and is used for making lenses.

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