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