PES SS 3 Chemistry Mock 1 Exam 2025-26
A) Atomic number B) Mass number C) Number of electrons D) Oxidation number
A) Silver B) Potassium C) Iron D) Calcium 
A) 2-chloro but-diene. B) 3 -chloro but -1.3-diene. C) But-1,3-chlorodiene. D) 2- chloro but-I ,3-diene.
A) Anions B) Halogens C) Halides D) Cations
A) +1 B) +3 C) +5 D) +6
A) C3H7OH B) C2H5OH C) C4H9OH D) CH3OH
A) All reactions cease to occur B) The amount of product equals the amount of reactants C) The rates of the forward and backward reactions are equal D) The reaction has gone to completion
A) Electrovalent B) Hydrogen C) Covalent D) Dative
A) Hund's rule B) Periodic law C) Afbau's principle D) Pauli's exclusion principle
A) Potassium B) Sodium C) Copper D) Zinc
A) Greater number of valence electrons B) Smaller Atomic size C) Lower melting point D) Larger Atomic Size
A) Gaining of electrons B) Losing of electrons C) Hybridization of Orbitals D) Sharing electrons
A) Sewage B) Hydrogen Sulphide C) Plastic D) Carbon (II) oxide
A) Favourable climate condition B) Nearness to industrial establishment C) Nearness to raw materials D) Availability of storage facilities
A) Ethene B) Oxygen C) Water D) Carbon (IV) oxide
A) Positional B) Geometrical C) Functional D) Optical
A) C6H12O B) C6H12O2 C) C3H8O D) C12H12O11
A) Total pressure B) partial pressure C) Atmospheric pressure D) Vapour pressure
A) Electrolysis B) Crystalization C) Distillation D) Chromatography
A) Valence electrons B) Core electrons C) Valence shells D) Electrons
A) Exothermic B) Slow C) Spontaneous D) Endothermic
A) conservation of mass B) Multiple proportion C) conservation of energy D) Constant composition
A) 0.25 mol B) 0.40 mol C) 0.20 mol D) 0.50 mol
A) form colourless salts B) are metals C) form cations D) have same number of valence electrons
A) Concentrated B) Saturated C) Unsaturated D) Diluted
A) A spectra B) A quanta C) An orbital D) A field
A) Have mobile electrons B) Conduct electricity in its solid state C) Dissolve in polar solvent D) Have low boiling points
A) 9.65 C B) 9650 C C) 965 C D) 96500 C
A) Saponification B) esterification C) Carboxylation D) Halogenation
A) Sulphur B) Hydrogen C) Ethene D) Methane
A) Benzene B) Pentane C) Propane D) Hexane
A) the filling of degenerated orbitals B) filling the orbitals with lower energy first C) quantity of electrons in the valence shell D) quantum numbers of electrons
A) they belong to the same period B) oxygen is more reactive than nitrogen C) nitrogen is less dense than oxygen D) of the difference in their boiling points
A) 80.00gdm−3 B) 0.08gdm−3 C) 2.00gdm−3 D) 8.00gdm−3
A) a single cation in its aqueous solution B) hydrogen ions in its aqueous solution C) hydrogen atoms in its aqueous solution D) double anions in its aqueous solution
A) reaction vessel feels cool during the reaction B) bond forming energy exceeds bond breaking energy C) heat of formation of reactants exceeds heat of formation of products D) enthalpy change is negative
A) CH4 B) NH3 C) HCl D) NaH
A) C3H6 B) C3H4 C) C2H4 D) C4H8
A) 76.0g B) 80.0g C) 96.0g D) 66.0g
A) valence electrons increase across the period while the valence shell remains constant B) nuclear charge decreases while the distance of the valence shell from the nucleus is increasing C) nuclear charge decreases while the outermost electrons are drawn closer to the nucleus D) nuclear charge increases while the outermost electrons are drawn closer to the nucleus
A) +3 B) +5 C) +2 D) +4
A) Na B) K C) Al D) Mg
A) durability B) hardness C) octahedral shape D) high melting point
A) 0.01 B) 1000.00 C) 10.00 D) 100.00
A) have same density B) have octahedral shape C) form carbon(IV) oxide on combustion D) conduct electricity
A) a reducing agent B) an oxidizing agent C) an acid D) a base
A) 0.490g B) 0.245g C) 0.049g D) 0.0245g 
A) 40°C B) 30°C C) 20°C D) 0°C
A) electrolytic reactions B) nature of the electrode C) mechanism of electrolysis D) electrochemical reactions
A) 2s orbital B) 2px C) 3s orbital D) 1s orbital
A) carbon(IV) oxide B) sand C) fire blanket D) water
A) Formation of salt and water with alkalis B) Evolution of ammonia when heated with ammonium salts C) Evolution of carbon dioxide gas when added to a trioxocarbonate (IV) salt D) Formation of salt and hydrogen gas with reactive metals
A) 2.4 × 1022 B) 1.2 × 1023 C) 1.2 × 1022 D) 2.4 × 1023
A) PbSO4 B) FeSO4 C) Na2SO4 D) CuSO4
A) manufacture of cement B) combustion C) production of ammonia D) photosynthesis
A) 25cm3 B) 30cm3 C) 150cm3 D) 75cm3
A) boiling point B) heat capacity C) colour D) mass
A) < 7 B) 0 C) > 7 D) = 7
A) Catalytic ability B) Ionization potential C) Electron Affinity D) Electronegativity
A) vibrational and random motion B) vibrational motion C) random and translational motion D) vibrational and translational motion |
Created with That Quiz —
the math test generation site with resources for other subject areas.