General Awareness Practice Questions Set 8

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Most soluble in water is
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1 point

camphor

sulphur

common salt

sugar

Which of them are the ingredients of gun metal?
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1 point

Iron, Zinc, Titanium

Iron, Tin

Iron, Brass, Tin

Copper, Tin

Monazite is an ore of
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titanium

zirconium

iron

thorium

Among the various allotropes of carbon,
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coke is the hardest, graphite is the softest

diamond is the hardest, coke is the softest

diamond is the hardest, graphite is the softest

diamond is the hardest, lamp black is the softest

Permanent hardness of water may be removed by the addition of
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1 point

sodium carbonate

alum

potassium permanganate

lime

What is laughing gas?
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1 point

Nitrous Oxide

Carbon monoxide

Sulphur dioxide

Hydrogen peroxide

Non-stick cooking utensils are coated with
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Teflon

PVC

black paint

polystyrene

Galvanised iron sheets have a coating of
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1 point

lead

chromium

zinc

tin

Potassium nitrate is used in
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1 point

medicine

fertilizer

salt

glass

When an iron nail gets rusted, iron oxide is formed *

1 point

without any change in the weight of the nail

with decrease in the weight of nail

with increase in the weight of nail

without any change in colour or weight of the nail

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