Home/CBT TEST/Chemistry JAMB MOCK TEST CBT TEST Chemistry JAMB MOCK TEST Ace/Undergragra Follow on Twitter Send an email April 24, 20230 13 Less than a minute Facebook Twitter LinkedIn Reddit WhatsApp Telegram Join Our Telegram Channel For Latest Updates click here Join our WhatsApp TV For Latest Updates Click here 14 Created on April 19, 2023 By Ace/Undergragra Mock JAMB Chemistry 1 / 40 1. The nucleus of an atom contains Related Articles CSC 102 CBT PRACTICE TEST August 3, 2023 PAD 102 CBT PRACTICE TEST August 3, 2023 A) Protons and Neutrons B) Electrons C) Neutrons D) Protons 2 / 40 2. 1s2, 2s2, 2p6, 3s2, 3p6, 3d7, 4s2An element with the electronic configuration above is a A) Group 2 element B) Metal C) Non metal D) Transition Element 3 / 40 3. The number of atoms of chlorine present in 5.85g of NaCl is [Avogaro's Number = 6.02 x 1023] A) 6.02 x 10^22 B) 6.02 x 10^23 C) 5.85 x 10^24 D) 5.85 x 10^23 4 / 40 4. An element with atomic number twelve is likely to be A) covalent with a valency of 2 B) covalent with a valency of 4 C) electrovalent with a velocity of 1 D) electrovalent with a valency of 2 5 / 40 5. An organic compound contains 60% carbon, 13.3% hydrogen and 26.7% oxygen. Calculate the empirical formularn(C=12,H =1, O=16) A) C 3H 😯 B) C 4H 9O C) C 6H 13O 2 D) C 5H 12O 6 / 40 6. The periodic classification of elements is an arrangement of the elements in order of their A) Isotopic Weights B) Atomic Numbers C) Atomic Weights D) Molecular Weights 7 / 40 7. Elements P, Q, R, S have 6, 11, 15, 17 electrons respectively, therefore, A) P will form an electrovalent bond with R B) Q will form a covalent bond with S C) Q will form an electrovalent bond with S D) R will form an electrovalent bond with S 8 / 40 8. When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called A) Ionic B) Electrovalent C) Hydrogen D) Co ordinate 9 / 40 9. Ozone is unstable, decomposing to oxygen, as shown in the balanced equation 2O2 ➡ 3O2. In this reaction, how many grams of oxygen can be formed from the decomposition of 96g of ozone?See also FUOYE GST 202 CBT PRACTICE TEST A) 6g B) 96g C) 16g D) 32g 10 / 40 10. A saturated solution is defined as A) A solution that is in equilibrium with undisolved solute B) A solution that is not in equilibrium with both pure solvent and undissolved solute C) A concentrated solution D) A solution that is in equilibrium with pure solute 11 / 40 11. The ion that can be used as an oxidizing agent is A) Ca2+ B) Au3+ C) Fe3+ D) F- 12 / 40 12. 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)In the reaction above, the mass of carbon(IV)oxide produced on burning 78 g of ethyne is[C =12, O = 16, H = 1] A) 352g B) 39g C) 156g D) 264g 13 / 40 13. If 30cm3 of gas at 50oC is warmed to 80o at a fixed pressure, the fractional increase in volume is A) 1.090 B) 0.009 C) 0.093 D) 0.910 14 / 40 14. A) A B) D C) B D) C 15 / 40 15. Which of the following is a Tertiary alcohol A) C B) D C) B D) A 16 / 40 16. A small quantity of solid ammonium chloride (NH4Cl) texted gently in a test tube, the solid gradually disappear produce two gases. Later, a white cloudy deposit was absence on the cooler part of the test tube. The ammonium chloride is to have undergo A) evaporation B) distillation C) precipitation D) sublimation 17 / 40 17. When salt loses its water of crystallization to the atmosphere on exposure, the process is said to be A) fluorescence B) déliquescence C) efflorescence D) effervescence 18 / 40 18. Atomicity of ozone is A) 4 B) 2 C) 1 D) 3 19 / 40 19. 2-methylbut-2-ene has the structure A) B B) A C) C D) D 20 / 40 20. Which of the following functional groups will give gas bubbles when treated with a saturated solution of sodium hydrogen trioxocarbonate (IV)?See also POL 105 CBT PRACTICE TEST A) D B) B C) C D) A 21 / 40 21. Iron is often galvanized in order to A) Remove the impuritiess B) Render it passive C) Protect it against corrosion D) Make it more malleable 22 / 40 22. In the industrial production of H2 is removed by (solution) A) drying over phosphorus (V) oxide B) using ammonical copper (I) chlorine C) passing the mixture to the limewater D) washing under pressure 23 / 40 23. The gas that is most useful in protecting humans against solar marathon is A) ozone B) hydrogen sulphur C) carbon IV oxide D) chlorine 24 / 40 24. Vulcanization involve the removal of A) a polymer B) the double bond C) monometer D) the single bond 25 / 40 25. The acid in electrolysis of water is dilute A) HCL B) CH3COOH C) HNO3 D) H2S04 26 / 40 26. The filter in the cigarette reduce the nicotine construct by A) absorption B) Adsorption C) burning D) Evaporation 27 / 40 27. Which of these require crystallization most? A) Drug making B) Perfume making C) Cement Making D) Paint Making 28 / 40 28. Sucrose is made up of A) glucose and fructose B) fructose and fructose C) galactose and glucose D) glucose and glucose 29 / 40 29. Alkanones are generally obtained by the oxidation of A) Secondary Alcohol B) Primary Alcohol C) alkanoic acid D) Tertiary Alcohol 30 / 40 30. The reaction of carbide with water gives A) ethyne B) ethene C) ethane D) ethanal 31 / 40 31. The chlorinated alkane often used industrially to remove grease is A) trichloromethane B) dichloromethane C) chloromethane D) tetrachloromethane 32 / 40 32. The conditions necessary for the extraction of a water molecule from two molecules of ethanol are A) excess acid and a lower temperature B) less acid and a higher temperature C) excess acid and a higher temperature D) less acid and lower temperature 33 / 40See also MTH 101 CBT TEST EXAM MODE 33. A common characteristics of copper and silver in their usage as coinage metals is that they A) are easily oxidized B) are not easily reduced C) have high metallic lustre D) are not easily oxidized 34 / 40 34. Haematite is an ore of A) Lead B) Copper C) Iron D) Zinc 35 / 40 35. The least easily oxidized of the metals below is A) Ca B) Zn C) Al D) Na 36 / 40 36. The repeating unit in natural rubber is A) Peoprene B) Isoprene C) n-propene D) Alkyne 37 / 40 37. Unsaturated organic compounds are identified by decolourization of A) bromine water and alkaline potassium tetraoxomanganate (VII) solution B) silver bromine and potassium tetraoxomanganate (VII) solutions C) silver bromide solution and bromine water D) bromine water and acidified potassium tetraoxomanganate (VII) solution 38 / 40 38. Zinc and carbon rods are used as anode and cathode respectively in a A) Leclanche cell B) voltaic cell C) lead accumulator D) Daniel cell 39 / 40 39. The solution that will conduct the highest amount of electricity is A) 0.5 mol dm-3 of hydrochloric acid B) 2.0 mol dm-3 ethanoic acid C) 2.0 mol dm-3 of hydrochloric acid D) 0.5 mol dm-3 ethanoic acid 40 / 40 40. In which of the following is the oxidation number of sulphur equal to -2? A) SO2 B) S8 C) H2S D) SO3 Your score is The average score is 40% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Related posts: GST 105 CBT TEST EXAM MODE FUOYE GST 101 CBT TEST EXAM MODE BIO 101 CBT PRACTICE TEST Physics JAMB MOCK TEST Ace/Undergragra Follow on Twitter Send an email April 24, 20230 13 Less than a minute Facebook Twitter LinkedIn Reddit WhatsApp Telegram Share Facebook Twitter LinkedIn Tumblr Pinterest Reddit VKontakte Odnoklassniki Pocket Share via Email Print
