PES SS 2 Chemistry Mock 3 Exam 2024/25
A) Ethene B) Sulphur C) Hydrogen D) Methane
A) Benzene B) Hexane C) Pentane D) Propane
A) oxidation B) reduction C) decomposition D) sublimation
A) the filling of degenerated orbitals B) quantity of electrons in the valence shell C) quantum numbers of electrons D) filling the orbitals with lower energy first
A) of the difference in their boiling points B) they belong to the same period C) nitrogen is less dense than oxygen D) oxygen is more reactive than nitrogen
A) 8.00gdm−3 B) 2.00gdm−3 C) 0.08gdm−3 D) 80.00gdm−3
A) hydrogen atoms in its aqueous solution B) a single cation in its aqueous solution C) double anions in its aqueous solution D) hydrogen ions in its aqueous solution
A) bond forming energy exceeds bond breaking energy B) enthalpy change is negative C) heat of formation of reactants exceeds heat of formation of products D) reaction vessel feels cool during the reaction
A) CH4 B) NH3 C) NaH D) HCl
A) C2H4 B) C3H6 C) C3H4 D) C4H8
A) 96.0g B) 80.0g C) 76.0g D) 66.0g
A) nuclear charge decreases while the outermost electrons are drawn closer to the nucleus B) nuclear charge increases while the outermost electrons are drawn closer to the nucleus C) nuclear charge decreases while the distance of the valence shell from the nucleus is increasing D) valence electrons increase across the period while the valence shell remains constant
A) +3 B) +2 C) +5 D) +4
A) Mg B) K C) Na D) Al
A) ability to attract shared electron(s) B) size of the positive nuclear charge C) distance of the outermost electron(s) from the nucleus D) screening effect of the inner electron(s)
A) Covalent compounds would readily ionize in solution B) Hydrogen bond is formed between a metal and a non-metal C) Covalent compounds consist of ions D) Ionic compounds in solution would conduct electricity
A) high melting point B) durability C) hardness D) octahedral shape
A) Activation energy is high B) It occurs reversibly C) A catalyst is required D) Heat energy is absorbed
A) 100.00 B) 1000.00 C) 0.01 D) 10.00
A) conduct electricity B) form carbon(IV) oxide on combustion C) have same density D) have octahedral shape
A) a reducing agent B) a base C) an oxidizing agent D) an acid
A) dehydration B) ozonolysis C) hydrolysis D) decomposition
A) 0.245g B) 0.0245g C) 0.049g D) 0.490g
A) increasing the external pressure B) decreasing the external pressure C) reducing its quantity D) distilling it 
A) 20°C B) 30°C C) 40°C D) 0°C
A) dissolves and the solution becomes unsaturated B) dissolves and the solution becomes super saturated C) precipitates and the solution remains unchanged D) dissolves and crystals are formed
A) propyne B) propanol C) propane D) propanoic acid
A) nature of the electrode B) electrolytic reactions C) electrolytic reactions D) mechanism of electrolysis
A) 2s orbital B) 1s orbital C) 3s orbital D) 2px
A) fire blanket B) carbon(IV) oxide C) water D) sand
A) Formation of salt and water with alkalis B) Evolution of carbon dioxide gas when added to a trioxocarbonate (IV) salt 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) CH3 B) CH2 C) CH D) CH4
A) alkalis B) bases C) acids D) salts
A) it is a covalent compound B) strong cohesive force makes its molecule immobile C) strong cohesive forces make its ions immobile D) each of potassium and chlorine structures contain noble gas structure
A) FeSO4 B) CuSO4 C) Na2SO4 D) PbSO4
A) combustion B) manufacture of cement C) photosynthesis D) production of ammonia
A) 75cm3 B) 30cm3 C) 150cm3 D) 25cm3
A) colour B) heat capacity C) boiling point D) mass
A) = 7 B) < 7 C) 0 D) > 7
A) reduced B) decomposed C) oxidised D) dissociated
A) 0 to +2 B) +3 to +2 C) +3 to 0 D) +2 to +3
A) electrons are consumed B) oxidation is involved C) ions are reduced D) the electrode dissolves
A) +2 to -2 B) +2 to +4 C) +2 to 0 D) +4 to +2
A) The chemical property change gradually throughout the series B) physical properties of members are similar C) They have the same molecular formula D) Successive members undergo changes in molecular formula by CH2
A) 6.40g B) 0.67g C) 0.45g D) 0.64g
A) molecular mass of the compound B) molecular formula of the compound C) number of alkyl groups bonded to the carbon having the hydroxyl group D) number of carbon atoms present in the compound
A) pentyl propanoate B) butyl propanoate C) propyl pentanoate D) propyl butanoate
A) increases as nuclear charge increases B) remains constant as nuclear charge increases C) decreases as nuclear charge decreases D) decreases as nuclear charge increases
A) 2:3 B) 1:1 C) 1:2 D) 2:1
A) cannot be attracted by electromagnetic field B) do not conduct electricity C) are composed of neutrons and electrons D) contain equal number of protons and electrons
A) Carbon(II) oxide and Sulphur(IV) oxide B) Carbon(IV) oxide and Nitrogen C) Nitrogen(II) oxide and Carbon(IV) oxide D) Carbon(II) oxide and oxygen
A) mannose B) maltose C) galactose D) sucrose
A) 2-chloroethanol B) 2-chloropropanol C) 1-chloroethanol D) 1- chloropropanol
A) acidic effect of chemicals on humans B) excessive ultraviolet light from the sun to reach the earth surface C) excessive release of infrared light from the sun to the earth surface D) corrosive effect of the chemicals on humans and animals
A) is cheap B) is formed naturally C) cannot be regenerated once used up D) can be recycled after use
A) random and translational motion B) vibrational and random motion C) vibrational and translational motion D) vibrational motion
A) 0.2gdm−3 B) 1.0gdm−3 C) 2.0gdm−3 D) 5.0gdm−3
A) enthalpy change B) equilibrium position C) activation energy D) free energy
A) Melting point B) Crystalline nature C) Relative density D) Solubility in water |
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.