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