Alkyl HalidesCarbon-Halogen Bond Strength1006Choose the best answerThe correct order of C–X bond dissociation energy is:AC–F > C–Cl > C–Br > C–IBC–I > C–Br > C–Cl > C–FCC–Cl > C–F > C–Br > C–IDC–Br > C–Cl > C–I > C–F Like 0 Discuss 0Share
Atomic StructureElectronic Configuration1007Choose the best answerIn the ground-state electronic configuration of Zn (Z = 30), how many electron pairs are present in the 3d subshell?A2B3C5D10 Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Atomic Mass Conversion1008Choose the best answerA hydrogen atom has a mass of 1.008 u. What is its mass in kilograms?A1.008 × 1.661 × 10⁻²³ kgB1.008 × 1.661 × 10⁻²⁷ kgC1.008 ÷ 1.661 × 10⁻²⁷ kgD1.661 × 10⁻²⁷ kg Like 0 Discuss 0Share
StoichiometryMole Conversions1009Choose the best answerMatch Column I with Column II. Column I: P) 88 g CO₂ Q) 6.022 × 10²³ H₂O molecules R) 5.6 dm³ O₂ at STP S) 96 g O₂ Column II: 1) 0.25 mol 2) 2 mol 3) 3 mol 4) 1 molAP-2, Q-4, R-1, S-3BP-1, Q-2, R-3, S-4CP-1, Q-4, R-3, S-2DP-4, Q-1, R-3, S-2 Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Atmospheric Pressure#Gases1010Choose the best answerLow atmospheric pressure system is called:ADiffusionBDepressionCEffusionDContraction Like 0 Discuss 0Share