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Chemistry

Chemistry
Bauxite is an alloy of which of the following metals ?

Tin
Iron
Silver
Aluminium

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Chemistry
The gas that usually causes explosions in coal mines is

Methane
Hydrogen
Carbon monoxide
Air

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Chemistry
Highly toxic gas which causes headache, visual difficulty, paralysis and even death is

CO2
CO
O3
All of these

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Chemistry
Which of the following electrodes is used in strongly alkaline solution

Silver - silver chloride electrode
Mercury - mercuric oxide electrode
Mercury - mercurous chloride electrode
Mercury - mercurous sulphate electrode

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Chemistry
Which gas is most stable at room temperature

F2
N2
H2
O2

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Chemistry
Which is the purest commercial form of iron ?

Stainless steel
Steel
Wrought iron
Pig iron

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MORE MCQ ON Chemistry

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