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Chemistry

Chemistry
The most electronegative element among the following is

oxygen
bromine
fluorine
sodium

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Chemistry
What is the most common salt in sea water ?

Calcium carbonate
Magnesium sulphate
Sodium chloride
Potassium chloride

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Chemistry
In galvanization, iron is coated with

Tin
Zinc
Nickel
Copper

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Chemistry
Browning of paper in old books is caused by

Lack of aeration
Collection of dust
Oxidation of cellulose
Frequent use

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Chemistry
Who modified Bohr's theory by introducing elliptical orbits for electron path

Sommerfeld
Rutherford
Hund
Thomson

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Chemistry
A non-electronic conductor is

Gas Carbon
Iron
Copper Sulphate
None of these

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MORE MCQ ON Chemistry

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