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Chemistry

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

0.5 mole
0.2 mole
0.4 mole
0.25 mole

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Chemistry
Photo-oxidation process is initiated by

Catalyst
Heat
Oxygen
Light

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Chemistry
The wire of flash bulb is made of:

Silver
Magnesium
Barium
Copper

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Chemistry
'Fire-fighting clothes' are made from

Mica
Talc
Asbestos
Steatite

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Chemistry
Number of6.023 × 1020 atoms present in one mole of a gas at STP is

'6.023 × 10–23
6.023 × 1020
'6.023 × 10–20
6.023 × 1023

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Chemistry
Detergents clean surfaces on the principle of

Surface tension
Floatation
Viscosity
Elasticity

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MORE MCQ ON Chemistry

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