B.P.S.C.(C.D.P.O.) (Pre) 2005
Lead (Pb) is used for—
aCleaning
bTransmission of light✓ Correct
cStrength
dWeakness
Explanation
Lead is a metal of bluish-gray colour. It has metallic lustre. Its atomic number in the periodic table is 82 and it is represented by the symbol Pb. Lead is used in electric cables (overhead or underground), in chemical laboratories, and in making bullets. Lead (Pb) is also used for transmission of light.
general-science