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Chemistry

Chemistry
Cinnabar is an ore/mineral of

Molybdenum
Lead
Mercury
Manganese

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Chemistry
Spirit in contact with body gives cool sensation because it is :

Liquid
Highly volatile
Transparent
A good conductor

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Chemistry
‘Aerosol’ is known as

Green house gas present in air
Pollutant gas, present in air
Suspended solid particles in air
Microbes, present in air

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

3.05 gram
4.05 gram
2.05 gram
5.05 gram

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Chemistry
The depletion in Ozone layer is caused by ________ .

Nitrous oxide
Carbon dioxide
Methane
Chlorofluorocarbons

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Chemistry
Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful

Solar ultraviolet radiation
Solar infrared radiation
SO2 in the air
CO2 in the air

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