Question

Write the formula of chloride of eka silicon and eka aluminum the element given by mentlevees

Answer 1

Eka-silicon is Germanium. The formula for chloride is ECl4 or (GeCl4)
Eka-aluminium is Gallium and formula for chloride is ECl3 (GaCl3)

Answer 2

Hellooo!!

Mendeleev  had predicted the properties of elements which were not discovered at that time.
Eka-silicon is Germanium. The formula for chloride is ECl4 or (GeCl4)
Eka-aluminium is Gallium and formula for chloride is ECl3 (GaCl3)

hope this helps you