Question 1 of 5

Q:1

Density of a gas is usually expressed in?

 
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      Question 2 of 5

Q:2

In chromatography, the substances are separated due to their relative. __________

 
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      Question 3 of 5

Q:3

Science of chemical characterization is stand under the heading of.

 
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      Question 4 of 5

Q:4

Paramagnetic nature of O2

 
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      Question 5 of 5

Q:5

Which of the following molecules has a coordinate bond?

 
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