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Chemistry

Chemistry
Which is not a green house gas ?

N2O
Chlorofluorocarbons
CO2
CH4

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Chemistry
The number of waves in n x 10th Bohr's orbit are

n2
n-2
n
n3

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Chemistry
Iron and manganese present as pollutants in water cannot be removed by________

Oxidation followed by settling and filtration
Ion exchange process
Chlorination
Lime soda process or manganese zeolite process

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Chemistry
Poison used for killing rats is

Magnesium phosphide (Mg3P2)
Calcium phosphide (Ca3P2)
Magnesium nitride (Mg3N2)
Zinc phosphide (Zn3P2)

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Chemistry
The trans-uranium elements are the chemical elements with atomic numbers greater than

86
89
96
92

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

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

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