Question

Dobereiner classified elements into sets of three chemically similar elements called triads.

• A. True
• B. False

Answer 1

The correct option is A True

1. First classification of element was done by dobereiner.
2. Dobereiner arrange elements in increasing order of atomic masses.
3. Dobereiner classified elements into sets of three chemically similar elements called triads.
4. In triads, the mass of the middle element is the average of the top and bottom elements.

Therefore, the given statement is.

“Dobereiner classified elements into sets of three chemically similar elements called triads.” is True