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Chemistry

Chemistry
Chemical name of vinegar is

Acetic acid
Ethanol
Formaldehyde
Acetone

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Chemistry
Which of the following is not a precious/semi-precious stone?

Pearl
Ruby
Sapphire
Emerald

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Chemistry
Which mineral is the ore of aluminium ?

Bauxite
Haematite
Magnetite
Siderite

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Chemistry
The most suitable unit for expressing nuclear radius is :

Angstrom
Fermi
Micron
Nanometre

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Chemistry
Cloud is a colloidal dispersion of

Water drops in a dispersion medium of air
Mist in a dispersion medium of air
Fog in a dispersion medium of water
Air in a dispersion medium of water

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Chemistry
The gas present in the stratosphere which filters out some of the sun's ultraviolet light and provides an effective shield against radiation damage to living things is

methane
ozone
helium
oxygen

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MORE MCQ ON Chemistry

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