CHEMISTRY POST UTME QUESTIONS & ANSWERS HomePOST UTME/POST JAMB Past Question & AnswersCHEMISTRY POST UTME QUESTIONS & ANSWERS Practice this CHEMISTRY POST UTME exam questions and answers Our experts have provided correct answers to these questions. 0% CHEMISTRY POST UTME (APP) CHEMISTRY POST UTME CHEMISTRY POST UTME Practice with our Post UTME CBT for Universities, Polytechnics, College of Agriculture, College of Medicine, College of Technology and College of Education and pass your examination. 1 / 50 Category: CHEMISTRY POST UTME Which of the following properties increases down a group in the Periodic Table electron affinity electronegativity atomic radius ionization energy 2 / 50 Category: CHEMISTRY POST UTME In the Periodic Table, the elements that lose electrons most readily belong to group IA group IIIA group IIA group VIIA 3 / 50 Category: CHEMISTRY POST UTME The percentage of water of crystallization in ZnSO4. 7H2O is 55% 87% 44% 33% 4 / 50 Category: CHEMISTRY POST UTME Lucas reagent is used to test for alkanes amines alkanols alkanoic acids 5 / 50 Category: CHEMISTRY POST UTME The greenhouse effect is a climatic condition associated with the presence of excess NH3 NO H2S CO2 6 / 50 Category: CHEMISTRY POST UTME Which quantum number divides shells into orbitals? Principal spin azimuthally magnetic 7 / 50 Category: CHEMISTRY POST UTME Organic molecules that have the suffix-ene are unsaturated hydrocarbons that have double bond an ionic bond a single bond a triple bond 8 / 50 Category: CHEMISTRY POST UTME The following uses radioactive isotopes except for sterilization of medical equipment tracing reaction paths dating elements determining equilibrium positions 9 / 50 Category: CHEMISTRY POST UTME A current of 4.0 amperes was passed through copper (II) tetraoxosulphate (IV) solution for one hour using copper electrodes. What was the mass of copper deposited? (Cu =64, IF = 96500C) 96 3.2g 4.8g 6.4g 10 / 50 Category: CHEMISTRY POST UTME The oxidation number of chlorine is +1in ZnCl2 NaClO Cl2O7 KClO3 11 / 50 Category: CHEMISTRY POST UTME The weakest attractive force that can be observed between two molecules is van der waals forces coordinates covalent ionic 12 / 50 Category: CHEMISTRY POST UTME Equilibrium is sad to be attained in a reversible reaction when all the products have been formed all the reactants have been used up there is no further change in temperature the rate of forward and backward reactions are equal 13 / 50 Category: CHEMISTRY POST UTME Which of the following is not a member of the homologous series of the paraffins? C15H32 C3H8 C24H48 C5H12 14 / 50 Category: CHEMISTRY POST UTME What weight of sodium hydroxide is required to make 500cm3 of 0.2M solution? 20g 10g 40g 4g 15 / 50 Category: CHEMISTRY POST UTME At 25oC and 1atm, a gas occupies a volume of 1.50dm3. What volume will it occupy at 100 oC and 1atm? 18.80dm3 6.00dm3 1.88dm3 60.0dm3 16 / 50 Category: CHEMISTRY POST UTME Which of the following substances increases in mass when heated in air? magnessium ribon copper (ii)oxide iodine crystals sodium chloride 17 / 50 Category: CHEMISTRY POST UTME Cotton is almost pure animal fibre protein cellulose starch 18 / 50 Category: CHEMISTRY POST UTME An element X forms the following compounds with chlorine: XCl4, XCl3, XCl2. This illustrate the law of definite proportions law of multiple proportions law of chemical proportions law of conservation of mass 19 / 50 Category: CHEMISTRY POST UTME The movement of liquid molecules from the surface of the liquid to the gaseous phase above it is known as Zig Zag Motion liquefaction evaporation Brownian motion 20 / 50 Category: CHEMISTRY POST UTME Alkanals can be differentiated from alkanones by reaction with 2, 4 – dinitrophenylhydrazine Tollen’s reagent sodium hydrogen sulphite hydrogen cyanide 21 / 50 Category: CHEMISTRY POST UTME A mixture of sugar and sulphur can be separated by dissolution in water, evaporation and filtration filtration, evaporation and dissolution in water evaporation, dissolution in water and filtration dissolution in water, filtration and evaporation 22 / 50 Category: CHEMISTRY POST UTME Which of the following is needed to produce a slag during the extraction of iron in the blast furnace? cryolite sulphur limestone carbon 23 / 50 Category: CHEMISTRY POST UTME 0.0075 mole of calcium trioxocarbonate (iv) is added to 0.015 mole of a solution of HCl. The volume of gas evolved at S.T.P is 224cm3 112cm3 168cm3 100cm3 24 / 50 Category: CHEMISTRY POST UTME Palm wine turns sour with time because microbiological activity results in the production of organic acids within it. the sugar content is converted into alcohol it is commonly adulterated by the tappers and sellers the CO2 formed during the fermentation process has a sour taste 25 / 50 Category: CHEMISTRY POST UTME The major source of oxides of nitrogen is from the burning of coal fuel chlorofluorocarbons wood 26 / 50 Category: CHEMISTRY POST UTME 3.0g of a mixture of potassium carbonate and potassium chloride were dissolved in a 250cm3 standard flask.25cm3 of this solution required 40.00cm3 of 0.01M HCl for neutralization. What is the percentage by weight of k2CO3 in the mixture? (k = 39, O = 16, C = 12) 82 92 72 89 27 / 50 Category: CHEMISTRY POST UTME Which of the following gases can be collected by the method of downward delivery? hydrogen chlorine ammonia oxygen 28 / 50 Category: CHEMISTRY POST UTME The principal constituents of natural gas is butane ethane methane propane 29 / 50 Category: CHEMISTRY POST UTME The IUPAC names for the compounds CH3COOH and CH2 = CH2 are respectively; acetic acid and ethane ethanoic acid and ethene acetic acid and ethene methanoic acid and ethylene 30 / 50 Category: CHEMISTRY POST UTME Which of the following types of reactions takes place between C2H4 and the halogens? Substitution polymerization Addition Oxidation 31 / 50 Category: CHEMISTRY POST UTME When a solution of silver (I) nitrate is saturated with hydrogen sulphide, a black precipitate forms which is PbS Ag2S HNO3 H2S 32 / 50 Category: CHEMISTRY POST UTME Copper metal dissolves in concentrated trioxonitrate (v) acid with the resultant evolution of SO2 CO2 NO2 CO 33 / 50 Category: CHEMISTRY POST UTME Catalytic hydrogenation of benzene produces benzene cyclohexane margarine an aromatic hydrogenation 34 / 50 Category: CHEMISTRY POST UTME Which of the following is an acidic salt? NaHSO4 Na2S CH3CO2Na Na2SO4 35 / 50 Category: CHEMISTRY POST UTME Calcium atom ionizes by sharing two electrons gaining two proton losing two electrons gaining two electrons 36 / 50 Category: CHEMISTRY POST UTME The following are uses of sulphur except manufacture of tetraoxosulphate (VI) acid manufacture of dyes coating of steel to prevent rusting vulcanization of rubber 37 / 50 Category: CHEMISTRY POST UTME Pauli exclusion principle is related to collision theory of reactions rate reversibility of equilibrium reactions quantum numbers of electrons electronegativity values of elements 38 / 50 Category: CHEMISTRY POST UTME The metal extracted from cassiterite is calcium sodium copper tin 39 / 50 Category: CHEMISTRY POST UTME An amphoteric oxide is an Oxide that is insoluble in water amorphorous oxide of a non-metal amorphorous oxide of a metal Oxide that behaves as a base as well as an acid 40 / 50 Category: CHEMISTRY POST UTME The carbon atoms on ethane are Sp2 hybridised SP2d hybridized SP3 hybridised SP hybridized 41 / 50 Category: CHEMISTRY POST UTME Which of the following halogens is the most reactive? Br2 Cl2 I2 F2 42 / 50 Category: CHEMISTRY POST UTME The greenhouse effect is a climatic condition associated with the presence of excess NO H2S NH3 CO2 43 / 50 Category: CHEMISTRY POST UTME 0.499g of CuSO4.XH2O when heated to constant weight gave a residue of 0.346g. What is the value of X? 4.0 5.0 2.0 3.0 44 / 50 Category: CHEMISTRY POST UTME Element P, Q, R and S have 6, 11, 15 and 16 electrons respectively, therefore, Q will form an electrovalent bond with S P will form an ionic bond with R Q will form a covalent bond with S R will form an electrovalent bond with S 45 / 50 Category: CHEMISTRY POST UTME Esterification of propane 1, 2, 3-triol and unsaturated higher carboxylic acids will produce soap fats methyl propanoate alkanols 46 / 50 Category: CHEMISTRY POST UTME A gaseous mixture of 80.0g of oxygen and 56.0g of nitrogen has a total pressure of 1.8atm. The partial pressure of oxygen in the mixture is 1.0atm 1.2atm 1.4atm 0.8atm 47 / 50 Category: CHEMISTRY POST UTME Organic Chemistry is the branch of Chemistry that deals with ------- and ------ Carbon & Sulphur Carbon & Carbon Hydrogen & oxygen Carbon & Hydrogen 48 / 50 Category: CHEMISTRY POST UTME The molecular formula of a common organic laboratory anesthetic is CHF3 CHI3 CHCl3 CCl4 49 / 50 Category: CHEMISTRY POST UTME Given that the molecular mass of iron is 56 and that of oxygen is 16, how many moles of iron (III) oxide will be contained in 1kg of the compound? 0.625moles 25moles 6.25moles 12.5moles 50 / 50 Category: CHEMISTRY POST UTME The following are uses of sulphur except manufacture of tetraoxosulphate (VI) acid vulcanization of rubber manufacture of dyes coating of steel to prevent rusting Your score is 0% Restart quiz