What was the element used in traditional thermometers which is highly toxic in nature?
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Who stated the following law : 'The properties of the elements are the periodic function of their atomic masses'?
The metal that can be cut with a knife is
The pH of a solution, whose hydrogen ion concentration is 1 x 10 mole per litre, will be ____.
If the first and third members of a Dobereiner triad are Phosphorous and Antimony, the second member of this triad is
Why do atoms bond?
Which of the following compounds has a double bond?
Choose the one which is different or odd from the following.
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