Which one of the following pairs of metals constitutes the lightest metal and the heaviest densest metal, respectively?
A. Lithium and Mercury
B. Lithium and Osmium
C. Aluminium and Mercury
D. Aluminium and Osmium
Answer: Option B
Related Questions on Metal and Its Compounds
Which of the following metals cannot be easily cut by a knife?
A. aluminium
B. sodium
C. potassium
D. lithium
The chemical structure of the pearl is
A. Calcium Carbonate
B. Calcium Carbonate & Magnesium Carbonate
C. Calcium Chloride
D. Calcium Sulphate
Stainless steel does not rust because
A. chromium and nickel combine with iron
B. chromium forms an oxide layer and protects iron from rusting
C. nickel present in it, does not rust
D. iron forms a hard chemical compound with chromium present in it

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