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General Science

General Science
Which of the following is used as a moderator in nuclear reactor?

Ordinary water
Radium
Thorium
Graphite

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General Science
Brass gets discoloured in air because of the presence of which of the following gases in air?

Nitrogen
None of the listed here
Hydrogen Sulphide
Oxygen

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General Science
The isotope of uranium capable of sustaining chain reaction is

U-235
U-239
U-238
U-245

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General Science
Non stick cooking utensils are coated with

Teflon
polystyrene
Black paint
PVC

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General Science
Paper is manufactured by

Wood, calcium, hydrogen sulphide and resin.
Wood and resin
Wood, sodium and bleaching powder
Wood and bleaching powder

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General Science
Washing soda is the common name for

None of the listed here
Calcium Bicarbonate
Sodium Bicarbonate
Sodium Carbonate

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