Chemistry
Grade-9
Easy
Question
The number of triads identified by Dobereiner is:
- 6
- 3
- 5
- 4
Hint:
He made only few triads.
The correct answer is: 5
The correct option is c)5
The identification of new elements has made this model obsolete. The newly discovered element did not fit into the triad. Only a total of 5 Doveliner triads have been identified.
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