Home/CBT TEST/Chemistry JAMB MOCK TEST CBT TESTChemistry JAMB MOCK TEST Ace/Undergragra Follow on Twitter Send an email April 24, 20230 61 Less than a minute To Join Our Whatsapp Tv Now Click Here Join Our Telegram Channel For Latest Updates click here Follow us on our Facebook Page For Latest Updates Click here 26 Created on April 19, 2023 By Ace/UndergragraMock JAMB Chemistry 1 / 401. The nucleus of an atom containsRelated Articles THA 107 CBT Practice February 29, 2024 ACC 103 Practice Test – Intro To Computer February 27, 2024 A) Electrons B) Neutrons C) Protons D) Protons and Neutrons 2 / 402. 1s2, 2s2, 2p6, 3s2, 3p6, 3d7, 4s2An element with the electronic configuration above is a A) Non metal B) Metal C) Group 2 element D) Transition Element 3 / 403. 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) 5.85 x 10^23 C) 5.85 x 10^24 D) 6.02 x 10^23 4 / 404. An element with atomic number twelve is likely to be A) electrovalent with a valency of 2 B) covalent with a valency of 2 C) electrovalent with a velocity of 1 D) covalent with a valency of 4 5 / 405. 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 / 406. The periodic classification of elements is an arrangement of the elements in order of their A) Atomic Numbers B) Atomic Weights C) Isotopic Weights D) Molecular Weights 7 / 407. Elements P, Q, R, S have 6, 11, 15, 17 electrons respectively, therefore, A) Q will form a covalent bond with S B) Q will form an electrovalent bond with S C) P will form an electrovalent bond with R D) R will form an electrovalent bond with S 8 / 408. When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called A) Hydrogen B) Electrovalent C) Co ordinate D) Ionic 9 / 409. 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? A) 96g B) 16g C) 6g D) 32g 10 / 4010. 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 / 4011. The ion that can be used as an oxidizing agent is A) Fe3+ B) Au3+ C) Ca2+ D) F- 12 / 4012. 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) 156g B) 264g C) 352g D) 39g 13 / 4013. If 30cm3 of gas at 50oC is warmed to 80o at a fixed pressure, the fractional increase in volume is A) 0.093 B) 0.910 C) 1.090 D) 0.009 14 / 4014. A) C B) D C) A D) B 15 / 4015. Which of the following is a Tertiary alcohol A) C B) A C) B D) D 16 / 4016.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) precipitation B) sublimation C) distillation D) evaporation 17 / 4017. When salt loses its water of crystallization to the atmosphere on exposure, the process is said to be A) fluorescence B) déliquescence C) effervescence D) efflorescence 18 / 4018. Atomicity of ozone is A) 1 B) 3 C) 2 D) 4 19 / 4019. 2-methylbut-2-ene has the structure A) B B) C C) A D) D 20 / 4020. Which of the following functional groups will give gas bubbles when treated with a saturated solution of sodium hydrogen trioxocarbonate (IV)? A) A B) C C) D D) B 21 / 4021. Iron is often galvanized in order to A) Render it passive B) Remove the impuritiess C) Protect it against corrosion D) Make it more malleable 22 / 4022. In the industrial production of H2 is removed by (solution) A) using ammonical copper (I) chlorine B) washing under pressure C) drying over phosphorus (V) oxide D) passing the mixture to the limewater 23 / 4023. The gas that is most useful in protecting humans against solar marathon is A) ozone B) chlorine C) hydrogen sulphur D) carbon IV oxide 24 / 4024. Vulcanization involve the removal of A) a polymer B) monometer C) the double bond D) the single bond 25 / 4025.The acid in electrolysis of water is dilute A) HNO3 B) HCL C) H2S04 D) CH3COOH 26 / 4026. The filter in the cigarette reduce the nicotine construct by A) Adsorption B) absorption C) Evaporation D) burning 27 / 4027. Which of these require crystallization most? A) Paint Making B) Cement Making C) Drug making D) Perfume making 28 / 4028. Sucrose is made up of A) glucose and fructose B) fructose and fructose C) glucose and glucose D) galactose and glucose 29 / 4029. Alkanones are generally obtained by the oxidation of A) Secondary Alcohol B) alkanoic acid C) Tertiary Alcohol D) Primary Alcohol 30 / 4030. The reaction of carbide with water gives A) ethyne B) ethene C) ethanal D) ethane 31 / 4031.The chlorinated alkane often used industrially to remove grease is A) tetrachloromethane B) dichloromethane C) trichloromethane D) chloromethane 32 / 4032. 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 lower temperature C) less acid and a higher temperature D) excess acid and a higher temperature 33 / 4033. A common characteristics of copper and silver in their usage as coinage metals is that they A) are easily oxidized B) have high metallic lustre C) are not easily oxidized D) are not easily reduced 34 / 4034. Haematite is an ore of A) Zinc B) Copper C) Lead D) Iron 35 / 4035.The least easily oxidized of the metals below is A) Na B) Ca C) Al D) Zn 36 / 4036. The repeating unit in natural rubber is A) Peoprene B) Isoprene C) Alkyne D) n-propene 37 / 4037. Unsaturated organic compounds are identified by decolourization of A) silver bromide solution and bromine water B) silver bromine and potassium tetraoxomanganate (VII) solutions C) bromine water and alkaline potassium tetraoxomanganate (VII) solution D) bromine water and acidified potassium tetraoxomanganate (VII) solution 38 / 4038. Zinc and carbon rods are used as anode and cathode respectively in a A) voltaic cell B) Leclanche cell C) lead accumulator D) Daniel cell 39 / 4039. The solution that will conduct the highest amount of electricity is A) 2.0 mol dm-3 of hydrochloric acid B) 0.5 mol dm-3 of hydrochloric acid C) 2.0 mol dm-3 ethanoic acid D) 0.5 mol dm-3 ethanoic acid 40 / 4040. In which of the following is the oxidation number of sulphur equal to -2? A) H2S B) SO2 C) S8 D) SO3 Your score isThe average score is 33% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Please do well to drop a comment if this has really helped you. Thanks❤️Related posts:GST 105 CBT TEST EXAM MODEFUOYE GST 101 CBT PRACTICE (New Questions Added)BIO 101 CBT PRACTICE TESTPhysics JAMB MOCK TEST Ace/Undergragra Follow on Twitter Send an email April 24, 20230 61 Less than a minute