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Chemistry

Chemistry
Element 106 was discovered by

Seaborg
Lawrence
Rutherford
Kurchatove

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Chemistry
Percentage of lead in lead pencils is

31-66
80
40

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Chemistry
Detergents used for cleaning clothes and utensils contain

Bismuthates
Sulphonates
Bicarbonates
Nitrates

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Chemistry
The orientation of an atomic orbital is governed by

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

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Chemistry
Which of the following is not a natural source of hydrocarbon?

Mica
Coal
Petroleum
Natural Gas

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Chemistry
Sour milk contains

Citric acid
Lactic acid
Acetic acid
Tartaric acid

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