Which set of triads fit the alkaline earth metal group ( Dobereiner's law of triads)?
Chlorine, Bromine,Iodine
Lithium,sodium, potassium
Calcium, Barium, strontium
Calcium, Strontium,Barium
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go