Ainsley - InorgChem lec (Chem. of Elements 2)

Odd one out:

• Ag

• Au

• Cu

• Co

True statements about Coinage metals, except:

• Occur free in nature

• Chemically inert

• Malleable and ductile

• Easily oxidized in air

Best metal for both electrical and heat conductivity.

• Cu

• Ag

• Au

• Hg

Color of copper in an aqueous solution.

• Green

• Red

• Emerald green

• Blue

I. When there is a too much intake of copper, it may lead to Menke’s disease. II. On the other hand, deficiency of such element may lead Wilson’s disease.

• Only I is correct

• Only II is correct

• Both are correct

• Both are incorrect

Copper alloys include, except:

• Brass

• Bronze

• Sterling

• Belgian Silver

Antidote for Copper toxicity:

• BAL

• Dimercaprol

• Penicillamine

• Sterling

Cupric sulfate is a component these solutions used to detect reducing sugars:

• Fehling’s

• Benedict’s

• Barfoed’s

• Nylander’s

The darkening of skin due to long period use of silver preparations.

• Shining

• Algeria

• Bordeaux

• Argyria

Which element is considered the King of all metals?

• Silver

• Titanium

• Mercury

• Gold