Atomic StructurePrincipal Quantum Number2776Choose 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 Model2777Choose 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 Equation2778Choose 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
KMU MDCAT 2024 Chemistry#Hess's Law#Thermochemistry & Thermodynamics2779Choose the best answerΔH can be measured indirectly by applying (KMU MDCAT 2024)AAvogadro's lawBFaraday's lawCGas's lawDHess's law Like 0 Discuss 0Share
LiquidsBoiling Point and External Pressure2780Choose the best answerFor pure water to boil at 110°C, the external pressure must be:ALess than 760 mmHgBGreater than 760 mmHgCExactly 760 mmHgDZero Like 0 Discuss 0Share