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