Question

4. The element 'sc' is known long back as.
a) Eka - aluminium
b) Eka - boron
c) Eka - silicon
d) Eka - mercury​

Answer 1

Answer:

option-b

Explanation:

The element 'sc' is known long back as. Eka -

boron.

the name given by Dmitri Mendeleev to the predicted element (scandium) lying below boron in the periodic table.

#SPJ