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Chemistry

Chemistry
Which one element has the lowest electronegativity value

Chlorine
Fluorine
Radium
Francium

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Chemistry
Which of the following metals can displace copper from copper sulphate solution ?

Iron
Gold
Mercury
Platinum

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Chemistry
The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3

4
5
zero
2

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Chemistry
The ore which is found in abundance in India is

monazite
magnetite
bauxite
fluorspar

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Chemistry
Submarines move under water. They have engines that run on

Steam
Batteries
Petrol and oxygen
Diesel

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Chemistry
The luster of a metal is due to

its high density
its chemical inertness
presence of free electrons
its high polishing

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