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Chemistry

Chemistry
Which one is the most reactive halogen

Chlorine
Iodine
Bromine
Fluorine

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Chemistry
Which of the following metals is used in Space Crafts to withstand high temperatures ?

Pb
Fe
Ni
Ti

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Chemistry
The acid present in red ants is

Formic acid
Butyric acid
Caproic acid
Acetic acid

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Chemistry
Liquid Nitrogen boils at

54 kelvin
77 kelvin
82 Kelvin
97 Kelvin

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Chemistry
The ore which is found in abundance in India is

magnetite
fluorspar
monazite
bauxite

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Chemistry
The green colour seen in firework displays is due to the chloride salt of :

Sodium
Strontium
Barium
Calcium

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