Industrial ChemistryEffect of pH on Enzyme Activity1501Choose the best answerWhich combination is correctly matched?APepsin — Basic mediumBTrypsin — Acidic mediumCPepsin — Acidic mediumDSalivary amylase — Extremely acidic medium Like 0 Discuss 0Share
Atomic StructurePrincipal Quantum Number1502Choose the best answerWhich pair of orbitals has the same principal quantum number?A2s and 3pₓB3dxy and 3dyzC1s and 2sD4f and 5p Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Atomic Structure#Bohr Model1503Choose the best answerThe radius of the first orbit of hydrogen is 0.53 Å. Which orbit has a radius of 4.77 Å? (MDCAT 2023)AFirstBSecondCThirdDFourth Like 0 Discuss 0Share
XiMDCAT XI Complete Chemistry Grand Test#Gases#Ideal Gas Equation1504Choose the best answerFor a fixed amount of ideal gas at constant temperature, which quantity remains constant?AThe ratio of pressure to volume always remains constantBVolume always remains constantCPressure always remains constantDThe product of pressure and volume always remains constant Like 0 Discuss 0Share
Nomenclature of Organic CompoundsNomenclature of Organic Compounds MCQs#Carboxylic Acid Nomenclature1505Choose the best answerWhich structure represents hex-3-ynoic acid?ACH₃–CH₂–CH₂–C≡C–COOHBCH₃–CH₂–C≡C–CH₂–COOHCCH₃–C≡C–CH₂–CH₂–COOHDCH₃–CH₂–CH=CH–CH₂–COOH Like 0 Discuss 0Share