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Chemistry

Chemistry
Which one is the most reactive halogen

Fluorine
Iodine
Bromine
Chlorine

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Chemistry
Liquid Nitrogen boils at

77 kelvin
54 kelvin
97 Kelvin
82 Kelvin

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Chemistry
Alum is used as

A fertilizer
A purifier for water
An analgesic
A disinfectant

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Chemistry
Number of hydrogen atoms in a Glucose molecule

12
14
8
6

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Chemistry
Which of the following metals occurs in free state ?

Zinc
Lead
Iron
Copper

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Chemistry
Which one is a soluble salt in H2O

CuS
Zn(OH)2
PbCl2
CaCl2

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MORE MCQ ON Chemistry

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