Sindh MDCAT 2020 Chemistry#Atomic Structure#Electronic Configuration971Choose the best answerWhich pair has 1 electron in its 's' orbital? (Sindh MDCAT 2020)ALi, FeBNa & CrCK & MnDH & He Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic Structure#Isotopes972Choose the best answerAn element has isotopes of 10 u (90%) and 20 u (10%). What is its average atomic mass?A10 uB11 uC15 uD20 u Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Gases#Standard Temperature and Pressure973Choose the best answerSelect the standard condition for temperature and pressure: (IBA MDCAT 2025)A1 atm and 0KB760 torr and 25°CC2 bar and 25°CD14.7 psi and 0°C Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryFunctional Groups974Choose the best answerA compound with molecular formula C₂H₆O that shows chemical reactions similar to methanol belongs to:AAlcoholsBAlkenesCCarboxylic acidsDHaloalkanes Like 0 Discuss 0Share
Chemistry of HydrocarbonsNitration of Benzene975Choose the best answerThe electrophile that attacks benzene during nitration is:ANO₂⁻BNO₂⁺CNO₃⁻DNO₂• Like 1 Discuss 0Share