1 point 50. Zinc does show variable
valency like d-block elements
because : *
O a) It is a metal
O b) It is low melting
c) Two melting are present in
outermost orbit
O d) d - orbital is complete.​

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together