Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum126Choose the best answerIn ν̄ = R(1/n₁² − 1/n₂²), what does n₁ represent?AThe higher energy levelBThe lower energy levelCThe total number of orbitsDThe number of emitted photons Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Gases#Ideal Gas Equation127Choose the best answerAn ideal gas has volume V and pressure P at 27°C. What temperature is required to keep volume V when the pressure becomes 2P?A54°CB54 KC600°CD600 K Like 0 Discuss 0Share
Atomic StructureSubatomic Particles128Choose the best answerA neutral atom with atomic number greater than 1 generally contains:AProtons onlyBProtons and neutrons onlyCNeutrons and electrons onlyDProtons, neutrons and electrons Like 0 Discuss 0Share
UHS MDCAT 2024 Chemistry#Carboxylic Acids#Esterification129Choose the best answerWhen carboxylic acid are heated with alcohol in the presence of sulphuric acid one of the following is formed:AAmidesBAcyl chlorideCEstersDAcid Anhydride Like 2 Discuss 0Share
Carboxylic AcidsReduction of Esters130Choose the best answerWhich compound produces two alcohol products on reduction with LiAlH₄?ACH₃COOCH₃BCH₃OC₂H₅CCH₃COCH₃DCH₃CHO Like 0 Discuss 0Share1