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Useful Information About Chemistry | Lecturer Chemistry Important Questions | PPSC | FPSC | PAEC | NTS | SPSC | BPSC | AJKPSC | Ustad Jugadi | Ustaad Jugadi

Useful Information About Chemistry | Lecturer Chemistry Important Questions | PPSC | FPSC | PAEC | NTS | SPSC | BPSC | AJKPSC | Ustad Jugadi | Ustaad Jugadi
PPSC PAST PAPERS

 

 

βœ“ Smallest Cation is Hydrogen Ion (H+).
βœ“ Largest Cation is Cesium Ion (Cs+).
βœ“ Solid with highest density is Iridium (Ir).
βœ“ Liquid with highest density is Mercury (Hg).
βœ“ Elements named after countries are (Ru, Ge, Po, Am).
βœ“ The most electronegative element is Fluorine (F).
βœ“ The most abundant element on earth is Oxygen.
βœ“ The most abundant element in earth crust is Aluminum (Al).
βœ“ Liquid metal is Mercury (Hg).
βœ“ Lustrous non-metal is Iodine.
βœ“ Hardest among non-metals is Diamond.
βœ“ Soft metals are Sodium (Na) & Potassium (K).
βœ“ The best ductile metals are gold (Au) & Silver (Ag).
βœ“ The best conductor metal is Silver (Ag).
βœ“ The most poisonous metal is Pu.
βœ“ Element with maximum number of isotopes is Ag.
βœ“ The most electropositive metals is Cesium.
βœ“ Liquid non-metal is Bromine.
βœ“ Metal kept in paraffin wax is Lithium.
βœ“ Coinage metals are Au, Ag, Cu, Al.




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