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Chemistry

Chemistry
Which of the following is the maximum number of electrons that can be present in M-shell?

8
2
18
32

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Chemistry
The least preferred technique in the disposal of Municipal Solid Waste is

Incineration
Composting
Land filling
Bricketting

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Chemistry
Bauxite is used as raw material by which industry ?

Aluminium
Iron
Gold
Steel

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Chemistry
The chemical name of 'laughing gas' is

Nitrogen dioxide
Nitrous oxide
Nitric oxide
Nitrogen pentoxide

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Chemistry
The inexpensive and commonly used variety of glass is called soda glass.

was initially used for storing sodium carbonate
was used initially for making bottles of soda(carbonated drink)
is made using soda(sodium carbonate)
is made using soda lime

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Chemistry
The filter over which sewage is sprinkled is called as

Trickling filter
Contact bed
Percolating filter
Intermittent sand filter

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