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Chemistry

Chemistry
24 carat of diamond is equal to

95% mg
200 g
200 mg
91% gold

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Chemistry
Diamond is lustrous because

It is colourless
It is pure
Its refractive index is high
It is hard

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Chemistry
A polymeric substance used to make parachute is

Cotton
Rayon
Viscose
Terylene

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Chemistry
Which of the following substance's smell is similar to Ethanoic acid?

Lemon
Kerosene
Tomato juice
Vinegar

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Chemistry
The apparatus used to test acidity of aqueous solution is

Hygrometer
Ammeter
Acidmeter
PH meter

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Chemistry
Which of the following laser types is used in a laser printer?

Excimer laser
Gas laser
Dye laser
Semiconductor laser

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