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Chemistry

Chemistry
Which of the following is very reactive and kept in kerosene?

Potassium
Iodine
Sodium
Bromine

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Chemistry
Iron is prevented from rusting by coating with zinc. This process is called as

Corrosion
Reduction
Galvanisation
Sublimation

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Chemistry
The filter over which sewage is sprinkled is called as

Trickling filter
Percolating filter
Intermittent sand filter
Contact bed

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

HF
HBr
HI
HCI

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Chemistry
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

Travancore coast
Gujarat coast
West Bengal coast
Orissa coast

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Chemistry
Milk is a colloidal system in which:

Fat is dispersed in water
Water is dispersed in fat
Fat and water are dispersed in each other
Fat is dissolved

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