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Standard X
Chemistry
Limitations of Mendeleev’s Periodic Table
How many elem...
Question

How many elements were known at the time of Mendeleev?


A

118

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B

40

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C

112

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D

63

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Solution

The correct option is D

63


The Russian chemist D’mitri Ivanovich Mendeleev studied the chemical properties of all the 63 elements and their compounds known at that time.


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