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Chemistry

Chemistry
Which type of radiations are absorbed by the upper layer of the atmosphere?

Ultraviolet
Radio-waves
Visible
Infrared

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Chemistry
Which of the following has no unit

Ionization energy
Electronegativity
Electron affinity
Excitation potential

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Chemistry
The orientation of an atomic orbital is governed by

Spin quantum number
Principal quantum number
Magnetic quantum number
Azimuthal quantum number

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Gun powder
Glass
Paint
Cement

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Chemistry
The material known in commerce as Terylene is a

Natural fibre
Modified natural fibre
Synthetic fibre
Blend of cotton and silk

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Chemistry
The important ore of aluminium is

Cryolite
Bauxite
Haematite
Fluorspar

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MORE MCQ ON Chemistry

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