Which of the following group is NOT Dobereiner Triads?
In a compound the elements are always present in definite proportions by ______
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Chemical name of vinegar is
Inert gases are
In arc welding, Argon is used because of its
Nitric acid does not react with
All isotopes of the same element have ____________
Which one of the following forms of phosphorus is most reactive?
Calcium salts used as fertilizer is: