Sindh MDCAT 2021 Chemistry#Halogens#S- and P-Block Elements346Choose the best answerThe valence shell electronic configuration of Halogen family is:Ans¹Bns², np⁶Cns², (n-1)d⁵Dns², np⁵ Like 0 Discuss 0Share
Atomic StructureQuantum Numbers347Choose the best answerIf an electron has mℓ = −3, the minimum possible value of n is:A1B2C3D4 Like 13 Discuss 1Share1
BUMHS MDCAT 2025 Chemistry#Catalytic Properties#Transition Elements348Choose the best answerReaction of toluene with chlorine in the presence of a Lewis acid catalyst gives the major product: (BUMHS MDCAT 2025)Ao-ChlorotolueneBm-ChlorotolueneCp-ChlorotolueneDEqual amounts of ortho and para products Like 0 Discuss 0Share30
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#X-Rays349Choose the best answerWho studied the X-ray spectra of elements from aluminium to gold in 1913?AWilhelm RoentgenBHenry MoseleyCHenri BecquerelDMarie Curie Like 1 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Alcohols#Alcohols and Phenols350Choose the best answerComplete oxidation of a primary alcohol gives: (UHS MDCAT 2023)AAldehydeBAlkaneCCarboxylic acidDKetone Like 0 Discuss 0Share