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Chemistry

Chemistry
In a period from Li to F, ionisation potential

Cannot be predicted
Decreases
Remains same
Increases

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Chemistry
Percentage of carbon in steel ranges from

3.0 to 4.0
1.5 to 3.0
0.1 to 1.5
4.0 to 6.0

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Chemistry
The ionic radii of N3-, O2-, F- and Na+ follows the order

Na+ > O2- > N3- > F-
N3- > Na+ > O2- > F-
O2- > F- > Na+ > N3-
N3- > O2- > F- > Na+

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Chemistry
Periodic table contains how many groups

16
18
17
19

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Chemistry
Cloud is a colloidal dispersion of

Water drops in a dispersion medium of air
Mist in a dispersion medium of air
Air in a dispersion medium of water
Fog in a dispersion medium of water

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Chemistry
The most electropositive elements among the following is

Cs
Na
K
Ca

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MORE MCQ ON Chemistry

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