AIC SS1 Chemistry Exam- 2nd Term 23/24
A) Oxygen and hydrogen B) Sulphur and oxygen C) Nitrogen and oxygen D) Carbon and oxygen
A) X3Y2 B) X2Y3 C) XY2 D) X2Y 
A) 8 and 2 B) 1 and 3 C) 6 and 2 D) 2 and 3
A) +8 B) +7 C) -5 D) -7
A) Sublimation B) Evaporation C) Melting D) Crystallisation
A) Chlorine B) Potassium C) Argon D) Sulphur
A) Neutrons between two atoms B) Protons between two atoms C) Electrons from one atom to another D) Electrons between two atoms
A) H2O B) NH3 C) NaCl D) CO2
A) Transfer of electrons between atoms B) Formation of covalent bonds between atoms C) Presence of positive ions in a sea of delocalized electrons D) Sharing of electrons between atoms
A) Sodium chloride B) Carbon dioxide C) Iron D) Water
A) Atomic radius of atoms B) Electron affinity of atoms C) All of the above D) Electronegativity difference between atoms
A) Carbon B) Nitrogen C) Oxygen D) Helium
A) Strong covalent bonds between atoms B) Weak intramolecular forces within molecules C) Weak intermolecular forces between molecules D) Strong electrostatic attractions between ions
A) Sodium chloride (NaCl) B) Methane (CH4) C) Hydrogen peroxide (H2O2) D) Ethanol (C2H5OH)
A) Have fixed positions in a lattice structure B) Have strong intermolecular forces of attraction C) Have negligible volume compared to the space they occupy D) Are closely packed together
A) The density of particles within a gas B) The motion of particles within a gas C) The chemical reactions occurring within a gas D) The arrangement of particles within a gas
A) Burning of wood B) Rusting of iron C) Melting of ice D) Digestion of food
A) Pressure and temperature of a gas B) Temperature and volume of a gas C) Pressure and volume of a gas D) Volume and number of moles of a gas
A) PV = nT B) PV = nRT C) PV = RT D) P = V/nRT
A) Volume B) Square root of its molar mass C) Temperature D) Pressure
A) Density B) Number of moles C) Volume D) Atomic mass
A) Electrons in one atom of a substance B) Atoms in one mole of a substance C) Moles in one liter of a gas D) Particles in one gram of a substance
A) NH3 B) H2O C) HCN D) CO2
A) Large difference in electronegativity B) Similar electron affinity values C) Both elements are non-metals D) High similarity in electronegativity
A) Helium B) Chlorine C) Oxygen D) Sodium
A) They are responsible for the high melting and boiling points of many molecules. B) They form between atoms with similar electronegativity. C) They involve sharing electrons. D) They can be polar or non-polar
A) Hydrogen bonding B) Dipole-dipole interactions C) Covalent bonding D) London dispersion forces
A) They attract each other strongly B) They occupy a significant volume. C) They are constantly in motion. D) They have specific shapes.
A) solids are rigid and have definite shapes B) all three statements are true. C) liquids flow easily and have indefinite shapes. D) gases expand to fill their container.
A) inversely proportional to its temperature B) dependent on the container size. C) constant D) directly proportional to its temperature
A) P B) R C) V D) K
A) wood and oxygen is greater than the mass of the products. B) wood and oxygen is less than the mass of the products. C) wood and oxygen is equal to the mass of the carbon dioxide and water vapor. D) wood decreases, while the mass of the products remains constant.
A) are not needed, only the coefficients are important. B) compounds are ignored. C) elements are used directly. D) reactants and products are used to convert between grams and moles.
A) perform complex mathematical calculations. B) balance the chemical equation first. C) know the physical properties of all the reactants and products. D) memorize the names of all elements and compounds.
A) The color of a compound can vary depending on its source. B) Carbon dioxide (CO₂) has a constant ratio of carbon to oxygen, regardless of its origin. C) Water (H₂O) always contains hydrogen and oxygen in a 2:1 ratio by mass. D) All samples of table salt (NaCl) have the same ratio of sodium to chlorine.
A) Cannot be determined without additional information. B) 2:3 C) 1:3/2 D) 1:2
A) Water can decompose into hydrogen and oxygen under specific conditions. B) Hydrogen and oxygen react explosively to form water. C) Two molecules of hydrogen react with one molecule of oxygen to form two molecules of water. D) 2 grams of hydrogen react with 1 gram of oxygen to produce water.
A) only elements, not compounds. B) elements that can form more than one compound with another element. C) all chemical reactions. D) compounds that can react with each other.
A) the names of the reactants and products B) the order in which the reactants combine. C) the states of matter of the reactants and products. D) the relative amounts of each molecule or atom involved in the reaction.
A) Cannot be determined without additional information. B) 5 moles C) 10 moles D) 2.5 moles |
Students who took this test also took :
Created with That Quiz —
where test making and test taking are made easy for math and other subject areas.