Question

2) Which of the following triads does not follow Dobereiner's law
of triads?
a) Li, Na, K b) Ca, Sr, Ba c) Be, Mg, Ca d) Cu, Ag, Au​

Answer 1

Answer:

cu ag au is the answer as dobereniers law does not hold true for these elements.

Explanation:

try finding the avg at mass of cu and au.. it is not equal to mass of ag.

Answer 2

Answer:

d) Cu, Ag, Au traids does not follow Dobereiner's law of traids