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General formula: CnH2n + 1X (X = F Cℓ
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The following questions are multiple-choice questions with one correct answer. 12. Arrhenius equation can be represented graphically as follows: The (i) ...
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Jan 21 2011 ... answers are enshrined in a textbook. The successful implementation of ... questions. GLO C5: Demonstrate curiosity
PHYSICAL SCIENCES PAPER 2 (CHEMISTRY) GRADE 12 TERMS
Acquaint yourself with the way in which a particular type of question should be answered. Answers supplied are from memoranda used to mark the questions in
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Answer. ALL questions. 7. Answer all questions on the answer sheet. Answers on (a) A group of grade 12 students decide to have a party at the end of the year.
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PHYSICAL SCIENCES: CHEMISTRY (P2). MAY/JUNE 2018. Page 2. Physical Sciences/P2. 2. NW Four options are provided as possible answers to the following questions ...
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25 Oct 2011 There are 12 printed pages in the question booklet and 7 printed pages in the answer ... Section B: Short Answer Questions - 70 marks.
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GRADE 12. PHYSICAL SCIENCES: CHEMISTRY (P2). MAY/JUNE 2018 Four options are provided as possible answers to the following questions. Each.
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24 Dec 2018 Topic 4: Organic Chemistry Worksheet ... 4 Grade 12 Physical Sciences ... 4.4 How will the answer to Question 4.3 be affected if:.
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MARKS: 150
TIME: 3 hours
This question paper consists of 15 pages, 4 data sheets and a graph paper.NATIONAL
SENIOR CERTIFICATE
GRADE 12
PHYSICAL SCIENCES: CHEMISTRY (P2)
MAY/JUNE 2018
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INSTRUCTIONS AND INFORMATION
1. Write your name in the appropriate space on your ANSWER BOOK.
2. This question paper consists of NINE questions. Answer ALL the questions in
the ANSWER BOOK. Answer QUESTION 6.3 on the answer sheet.3. Start EACH question on a NEW page in the ANSWER BOOK.
4. Number the answers correctly according to the numbering system used in this
question paper.5. Leave ONE line between two subquestions, for example between
QUESTION 2.1 and QUESTION 2.2.
6. You may use a non-programmable calculator.
7. You may use appropriate mathematical instruments.
8. You are advised to use the attached DATA SHEETS.
9. Show ALL formulae and substitutions in ALL calculations.
10. Round off your final numerical answers to a minimum of TWO decimal places.
11. Give brief motivations, discussions, etcetera where required.
12. Write neatly and legibly.
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QUESTION 1: MULTIPLE-CHOICE QUESTIONS
Four options are provided as possible answers to the following questions. Each question has only ONE correct answer. Write the letter (A-D) next to the question number (1.1-1.10) in the ANSWER BOOK, for example 1.11 D.1.1 Which ONE of the following compounds is having a carbonyl functional group
A alcohols
B ketones
C aldehydes
D carboxylic acids (2)
1.2 Which ONE of the following pairs of reactants can be used to
prepare the ester ethylmethanoate in the laboratory?A ethane and methanoic acid
B methanol and ethanoic acid
C ethanol and methanoic acid
D ethane and methanol (2)
1.3 Consider the structure of an organic compound below:
H H HH C C C CƐ
CƐ H
H C H HA 2,4-dichloro-2-methylpropane
B 1,3-dichloro-3-methylpropane
C 1,3-dichlorobutane
D 2,4-dichlorobutane (2)
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1.4 Consider the two organic molecules F and G below:
H H O
H C C C O H
H HH O H
H C O C C H
H HMolecule F Molecule G
Which one of the following represents the correct homologous series to which each molecule belongs?Molecule F Molecule G
A Ketones Alcohols
B Ketones Carboxylic acids
C Carboxylic acids Esters
D Esters Ketones
(2) 1.5A no further reaction takes place.
B all the reactants are used up.
C the rates of the forward and the reverse reactions are equal. D the concentrations of all the chemicals are the same. (2)1.6 Which one of the following is most likely to change the equilibrium constant
of a reversible reaction?A temperature
B volume
C pressure
D catalyst (2)
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1.7 Which ONE of the following is NOT a conjugate acid-base pair?
A H3O+ and OH-
B NH4+ and NH3
C H2PO4- and HPO42-
D H2CO3 and HCO3- (2)
1.8 Consider the following chemical reaction
2HCƐ (aq) + CaCO3ĺƐ2(aq) + H2O(Ɛ) + CO2(g)
Which combination of HCl(aq) and CaCO3(g) will result in the fastest rate of CO2(g) formation?HCƐ (aq) CaCO3(s)
A Concentrated Chunks
B Concentrated Powder
C Dilute Chunks
D Dilute Powder
(2)1.9 A solution has a pH = 1. This solution
A contains no OH- ions
B neutralizes a hydrochloric acid solution of pH = 1 C contains a higher concentration of H3O+ ions than OH- ionsquotesdbs_dbs2.pdfusesText_2[PDF] grade 12 chemistry topics
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