Chlorine bromine , iodine are Dobereiner's triads .How do you justify ?

Give one example to Dobereiner's Triads .

Example of Dobereiner's triad is ___

What do you know from Dobereiner's triads ?

Which of the following is Dobereiner triad

Which of the following is Dobereiner triad

How do you identify pellagra?

What are the limitations of Dobereiner's law to triads ?

Which of the following is not a Dobereiner Triad

Diffusion of oxygen occurs in the alveolar region only and not in other parts of respiratory system. How do you justify the statement ?

“New cells, could be formed only by the division of pre- existing cell.?” How do you justify this statement?