CBT Chemistry JAMB 2016 by Abbey /50 26 Created on March 14, 2020 By bolaChemistry CBT Chemistry JAMB 2016 1 / 50 Category: Chemistry 1 In an electrochemical cell, polarization is caused by Oxygen Hydrogen Tetraoxosulphate(IV) acid Chlorine 2 / 50 Category: Chemistry 2 The condition required for corrosion to take place is the presence of Oxygen and Carbon (IV) oxide Water and Oxygen Water and Carbon (IV) oxide and Oxygen Water and Carbon (IV) oxide 3 / 50 Category: Chemistry 3 The enzyme used in the hydrolysis of starch to dextrin and maltose is Zymase Sucrase Amylase Lactase 4 / 50 Category: Chemistry 4 In the laboratory preparation of chlorine from concentrated hydrochloric acid in the presence of potassuim tetraoxomanganate(VII) the produced is dried by passing it through Concentrated tetraoxosulphate (VI) acid Anhydrous calcium chloride Calcium oxide Sodium hydroxide 5 / 50 Category: Chemistry 5 The monomer of nylon is Hydroxybenzene Hexanedioic acid Benzene -1,-4-dicarboxylic acid Ethane-1,2-diol 6 / 50 Category: Chemistry 6 The principle of column chromatography is based on th ability of the constituents to React with the solvent in the column React with each other in the solvent in the column Dissolve in each other in the column Move at different speeds in the column 7 / 50 Category: Chemistry 7 Ammonium chloride can be separated from its mixture with common salt by Distillation Evaporation Decantation Sublimation 8 / 50 Category: Chemistry 8 The ability of carbon to form long chains is referred to as Alkylation Acylation Carbonation Catenation 9 / 50 Category: Chemistry 9 The industrial preparation of hydrogen gas from water gas is referred to as Bosch process Contact process Haber process Bayer Process 10 / 50 Category: Chemistry 10 The relative atomic mass of a naturally occurring lithium consisting of 90% (7/3)Li and 10% (6/3)Li is 6.2 6.8 7.1 6.9 11 / 50 Category: Chemistry 11 The colour of litmus in an alkaline medium is Red Yellow Pink Blue 12 / 50 Category: Chemistry 12 The compounds CH 3 CH 2 CHO and CH 3 COCH 3 can be distinguished from each other using Dilute ammonia Benedict's solution Tollen's reagent Sodium hydroxide solution 13 / 50 Category: Chemistry 13 Which of the following statements is true about 2- methylpropane and butane They have different number of carbon atoms They are members of same homologous series They have the same boiling points They have the same chemical properties 14 / 50 Category: Chemistry 14 The process that requires the use of hardwater in its operation is Tanning Bottling Laundry Dyeing 15 / 50 Category: Chemistry 15 What is the concentration of a solution containing 2g of NaOH in 100cm^3 of solution? [Na=23, O=16, H=1] 0.05 moldm^-3 0.30moldm^-3 0.50 moldm^-3 0.40moldm^-3 16 / 50 Category: Chemistry 16 The radioisotope used in industrial radiography for the rapid checking of faults in welds and casting is Phosphorus-32 Cobalt-60 Carbon-14 Iodine-131 17 / 50 Category: Chemistry 17 The compound produced when sodium peroxide is heated with excess sodium is Na2 CO 3 Na2 O Na NO2 Na OH 18 / 50 Category: Chemistry 18 The pollutant that contributes to the depletion of the ozone layer is CFCs NO 2 SO 2 CO 19 / 50 Category: Chemistry 19 Which of the following properties is not peculiar to matter? Kinetic energy of particles increases from solid to gas Random motion of particles increases from gas to solid Orderliness of particles increases from gas to liquid Random motion of particles increases from liquid to gas 20 / 50 Category: Chemistry 20 Cast iron is used in making Chains and agricultural implements Iron sheets and retort stand Nails and iron rods Stoves and cookers 21 / 50 Category: Chemistry 21 Which of the following compounds is used as a gaseous fuel? CH 3 -CH 2 -CHO 2 -COOH CH 3 -C = CH CH 3 -CH 2 -CH 2 -CH 3 CH 2 -CH 2 -CH 3 22 / 50 Category: Chemistry 22 The product formed when propanol is heated over a copper catalyst in the absence of oxygen are CH 3 CH 2 CHO and H 2 CH 3 CHO and CO 2 CH 3 CH 2 COOH and H 2 CH 3 COOH and CO 2 23 / 50 Category: Chemistry 23 Alkanols have the general molecular formula a b c d 24 / 50 Category: Chemistry 24 Which of the following is not an alkali? Ca(OH) 2 NH 3 NaOH Al(OH) 3 25 / 50 Category: Chemistry 25 Which of the following statements is correct about the periodic table? Elements in the same group have the same number of electron shells The non-metallic properties of the elements tend to decrease across each period Elements in the same period have the same number of valence electrons The valence electrons of the elements increase progressively across the period 26 / 50 Category: Chemistry 26 The metal whose ore can be concentrated by passing it through a magnetic separator is Zn Sn Cn Ca 27 / 50 Category: Chemistry 27 An example of an acidic oxide is NO CO SO 2 CuO 28 / 50 Category: Chemistry 28 What volume of 0.5 MH 2 SO 4 will exactly neutralize 20cm^3 of 0.1 MNaOH Solution? 2.0cm^3 5.0cm^3 6.8cm^3 8.3cm^3 29 / 50 Category: Chemistry 29 Diamond cannot be used In making bicycle chains As abrasives In cutting glass and metals As dies for drawing wires 30 / 50 Category: Chemistry 30 Ethanol is soluble in water due to the presence of a Carbonyl group Hydroxyl group Phenyl group Methyl group 31 / 50 Category: Chemistry 31 The number of electronic shells contained in an atom with electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 is 3 2 4 5 32 / 50 Category: Chemistry 32 The drying agent suitable for drying ammonia is Calcium Chloride Calcium Oxide Phosphorus(V) Oxide Concentrated H2 SO4 33 / 50 Category: Chemistry 33 The arrangement of particles in crystal lattices can be studied using X-rays β-rays α-rays γ-rays 34 / 50 Category: Chemistry 34 In the extraction of iron, the waste gas from the furnace is a mixture of PH 3 CO and CO 2 CO and C N2 CO and CO 2 PH3 and CO 35 / 50 Category: Chemistry 35 In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is Blue Red Orange Purple 36 / 50 Category: Chemistry 36 An example of a solid emulsion is Butter Hair cream Milk Cod-liver oil 37 / 50 Category: Chemistry 37 An isotope has an atomic number of 15 and a mass number of 31. The number of proton it contains is 16 15 31 46 38 / 50 Category: Chemistry 38 Calculate the volume in cm^3 of oxygen evolved at s.t.p when a current of 5A is passed through acidified water for 193s? [F = 96500 C mol 1 . Molar volume of a gas at s.t.p = 22.4dm^3 ] 0.056dm^3 0.224dm^3 224.000dm^3 56.000dm^3 39 / 50 Category: Chemistry 39 The gas that is used for the treatment of cancer is Neon Radon Xenon Argon 40 / 50 Category: Chemistry 40 A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as A reversible reaction A spontenous reaction An endothermic reaction An exothermic reaction 41 / 50 Category: Chemistry 41 MnO 4(aq) + Y 5Fe^2+ (aq) Mn^2+ (aq) + 5Fe^2+ (aq) + 4H 2 O (1) In the equation above, Y is 10H^+ (aq) 5H^+ (aq) 8H^+ (aq) 4H^+ (aq) 42 / 50 Category: Chemistry 42. The compound above exhibits Geometric isomerism Positional isomerism Structural isomerism Optical isomerism 43 / 50 Category: Chemistry 43 n monosaccharide p⇌Q polysaccharide -n water. In the process above, P and Q respectively represent Condensation and hydrolysis Fermentation and condensation Polymerization and hydrolysis Polymerization and condensation 44 / 50 Category: Chemistry 44. The functional groups present in the compound above are Alkene and halo-group Hydroxyl and chloro-group Alkene and chloro-group Hydroxyl and halo-group 45 / 50 Category: Chemistry 45. In the diagram above, X is the Enthalphy Activated complex Activation energy Enthalphy change 46 / 50 Category: Chemistry 46. The diagram represents A spontaneous reaction An exothermic reaction A non-spontaneous An endothermic reaction 47 / 50 Category: Chemistry 47. The curve depicts titration between Strong acid and strong base Strong acid and weak base Weak acid and weak base Weak acid and strong base 48 / 50 Category: Chemistry 48. From the diagram above, an ideal gas can be represented by K M L N 49 / 50 Category: Chemistry 49 CH 4(g) + CI 2(g) CH 2 CI (s) + HCI g The major factor that influences the rate of the reaction above is Concentration Catalyst Temperature Light 50 / 50 Category: Chemistry 50 N 2 O4(aq) ⇌ 2NO 2(g) △H = +ve In the reaction above, an increase in temperature will Increase the reactant production Increase the value of the equilibrium constant Shift the equilibrium to the left Decrease the value of the equilibrium constant Your score isThe average score is 26% LinkedIn Facebook VKontakte 0% Restart quiz No related posts. Share FacebookTwitterPinterestLinkedinWhatsappTelegramEmail
