Which of the following shows three elements in order of decreasing conductivity?

A. Zn, Pd, Ag

B. Pd, Ag, Zn

C. Ag, Pd, Zn

D. Zn, Ag, Pd

Which of the following is the name of a metal?

A. K

B. Potassium chloride

C. Potassium

D. KCI

C. Ag, Pd, Zn

C. Pottasium

Explanation:

It is a known fact that silver (Ag) is one most conducting metals so clearly Ag is most conducting than Zn (Zinc) and Pd (Palladium). so answer is C

in the second question

A. K is the symbol off Metal potassium in the periodic table

B. Potassium chloride is a Metallic salt not a metal

C. Potassium is a name of metal

D. KCl is The symbol of potassium chloride

so C is the answer