Industrial chemistry Industrial chemistry MCQS#Condensation Polymerization#Macromolecules506Choose the best answerWhich monomers combine to form nylon-6,6?AEthylene glycol and terephthalic acidBAdipic acid and hexamethylenediamineCPhenol and formaldehydeDMelamine and formaldehyde Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Chemical Bonding#Hybridization507Choose the best answerWhich of the following hybrid orbitals has maximum 's'-character? (Sindh MDCAT 2020)Asp³-hybrid orbitalBsp²-hybrid orbitalCsp-hybrid orbitalDdsp²-hybrid orbital Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryNomenclature of Polyhydric Alcohols508Choose the best answerWhich pair is correctly matched?APropylene glycol — Propane-1,3-diolBPropylene glycol — Propane-1,2-diolCPropylene glycol — Propane-2,3-diolDPropylene glycol — Propane-1,1-diol Like 0 Discuss 0Share
StoichiometryPercentage Yield509Choose the best answerWhen 80 g CaCO₃ decomposes, the actual yield of CO₂ is 30 g. What is the percentage yield? CaCO₃ → CaO + CO₂A50%B60%C75%D85% Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCoke and Its Uses510Choose the best answerWhich statement about coke is false?AIt is mainly carbon.BIt is porous.CIt is used in blast furnaces.DIt contains a high proportion of volatile substances. Like 0 Discuss 0Share