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Chemistry

Chemistry
Which of the following will replace hydrogen from acids to form salts ?

Ag
P
S
Na

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Chemistry
Percentage of lead in lead pencils is

80
31-66
40

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Chemistry
The orientation of an atomic orbital is governed by

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

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Chemistry
The depletion in Ozone layer is caused by ________ .

Chlorofluorocarbons
Methane
Nitrous oxide
Carbon dioxide

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Chemistry
Basicity of boric acid, H3BO3 is

2
4
3
5

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Chemistry
Which of the following is an antidiabatic drug?

Chloroquine
Insulin
Aspirin
Penicillin

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