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Chemistry

Chemistry
The most important ore of lead is

Galena
Pyrolusite
Siderite
Magnetite

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Chemistry
Major portion of the earth’s crust is mainly constituted by

Silicon and Aluminium
Oxygen and Iron
Silicon and Iron
Oxygen and Silicon

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Chemistry
Drinking soda is

Oxidant
Neutral
Alkaline
Acidic

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Chemistry
During fermentation of sugar, the compound which is always formed is :

Acetic Acid
Ethylene
Methyl Alcohol
Ethyl Alcohol

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Chemistry
Which one of the following is an example of a gel ?

Shaving cream
Face cream
Cheese
Milk

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Chemistry
Which one of the following is used as an anti-freeze for the automobile engines ?

Ethanol
Propyl alcohol
Methanol
Ethylene glycol

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