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