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Chemistry

Chemistry
Quartz is a crystalline form of

Limestone
Alumina
Silica
Glass

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HI
HBr
HCI
HF

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Chemistry
One of the constituents of tear gas is

Ethanol
Chloropicrin
Ether
Ethane

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

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

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Chemistry
Atomic number of an atom gives the number of which of the following ?

Electrons
Neutrons
Neutrons and protons
Protons

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Chemistry
Ozone consists of

Oxygen only
Oxygen and Nitrogen
Hydrogen and Carbon
Oxygen and Carbon

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