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CHEMISTRY

Chemistry
Name two elements that find wide application in transistor industry

Carbon and Platinum
Tungsten and Platinum
Iridium and Germanium
Silicon and Germanium

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Chemistry
Which one is the naturally occuring heaviest element

Mercury
Thorium
Protactinium
Uranium

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Chemistry
Which of the following will replace hydrogen from acids to form salts ?

Ag
P
Na
S

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Chemistry
Which of the following could be used as fuel in propellant or rockets ?

Liquid Nitrogen + Liquid Oxygen
Liquid Hydrogen + Liquid Oxygen
Liquid Hydrogen + Liquid Nitrogen
Liquid Oxygen + Liquid Argon

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Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

O2
Cl2
SO2
H2

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