Q.

Which one of the following is not a proper match ?

Easy

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By Expert Faculty of Sri Chaitanya

Graphite . . .moderator in nuclear reactors

Borax . . manufacture of Pyrex glass

5B10 . . . high ability to absorb neutrons

CO . . . fire extinguisher

answer is D.

(Detailed Solution Below)

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Detailed Solution

CO2 is a fire extinguisher ;

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