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Question: If 10 g of Na reacts with excess Cl2, what is the mass of NaCl produced?Options: 58.5 g10 ..
Question: In the reaction 2H2 + O2 → 2H2O, how many grams of oxygen are required to completely react..
Question: What is the mass of water produced when 2 moles of hydrogen react with 1 mole of oxygen?Op..
Question: In the nitration of toluene, which position is predominantly substituted?Options: OrthoMet..
Question: Which of the following compounds undergoes electrophilic substitution more readily than be..
Question: What is the principle behind the law of conservation of mass?Options: Mass can be createdM..
Question: Which of the following is a characteristic of a base?Options: Sour tasteBitter tasteTurns ..
Question: Which gas is produced during the reaction of an acid with a carbonate?Options: OxygenHydro..
Question: Which of the following represents an endothermic reaction?Options: Combustion of gasolineD..
Question: If an electron has quantum numbers n=3, l=1, and m_l=-1, what is the possible value of the..
Question: What is the maximum number of electrons that can be accommodated in the n=5 shell?Options:..
Question: For an electron in a 3d orbital, what are the possible values of m_l?Options: -2, -1, 0, 1..
Question: What is the value of the principal quantum number for an electron in the ground state of a..
Question: If an electron is in the state characterized by the quantum numbers n=4, l=0, what is the ..
Question: What is the maximum number of electrons that can occupy a subshell with the quantum number..
Question: Which of the following configurations represents a transition metal?Options: [Ar] 4s2 3d10..
Question: Which of the following has the electronic configuration ending in 4p5?Options: BrClIAtCorr..
Question: What is the maximum number of electrons that can occupy the 3rd energy level?Options: 2818..
Question: Which of the following statements is true about isotopes?Options: They have the same numbe..
Question: Which of the following elements has the electronic configuration [Ne]3s²3p⁵?Options: Chlor..
Question: What is the primary factor that affects the rate of a chemical reaction?Options: Concentra..
Question: In a closed system, if the volume of gas is halved at constant temperature, what happens t..
Question: Which of the following is a characteristic of an endothermic reaction?Options: Releases he..
Question: For a reaction at equilibrium, if the concentration of products increases, what will happe..
Question: What is the standard enthalpy change for the reaction: C(s) + O2(g) → CO2(g) if ΔHf° for C..
Question: Which of the following statements is true regarding the Van der Waals equation?Options: It..
Question: What is the value of the equilibrium constant Kc for the reaction A + B ⇌ C at 25°C if the..
Question: What is the main use of polycarbonate?Options: InsulationOptical lensesTextilesAdhesivesCo..
Question: Which polymer is known for its high resistance to heat and chemicals?Options: Polyethylene..
Question: What type of polymer is formed by the polymerization of unsaturated monomers?Options: Addi..
