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Chemistry

Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.25 mole
0.4 mole
0.2 mole
0.5 mole

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Chemistry
The antiparticle of an electron is

Proton
Beta particles
Alpha particles
Positron

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Chemistry
Iron is prevented from rusting by coating with zinc. This process is called as

Corrosion
Galvanisation
Sublimation
Reduction

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Chemistry
Denatured spirit is ethanol mixed with

Petrol
Pyridine
Water
Kerosene

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Chemistry
The most important ore of lead is

Magnetite
Galena
Pyrolusite
Siderite

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Chemistry
Forth floatation process to concentrate the minerals is applicable to

Bauxite
Calamine
Haematite
Chalcopyrites

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MORE MCQ ON Chemistry

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