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Chemistry

Chemistry
What is the chemical symbol of mercury

Mr
None of these
Mg
Hg

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Chemistry
Aerated water contains

CO2
NO2
H2
SO2

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Chemistry
Which of the following is used to iodise common salt ?

Potassium iodate
Sodium iodide
Iodine
Potassium iodide

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Chemistry
Which is not a green house gas ?

Chlorofluorocarbons
N2O
CH4
CO2

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Chemistry
Colour imparted to the Bunsen flame by strontium salt is

Bluish green
Apple-green
Crimson red
Brick red

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Chemistry
Among the fuels given below, the one with highest calorific value is

Natural gas
Coke
Wood
Coal

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