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Chemistry Grade 11 Unit 6: SOME IMPORTANT OXYGEN-CONTAINING ORGANIC COMPOUNDS

national exam questions have come from this unit. It runs 68 pages; one careful study pass takes about 6.0 hours, and its difficulty is moderate among Chemistry units. Each section below lists the questions set from it, with the year, and opens the page that teaches it.

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6.2 Alcohols and Ethers · read p. 265
Not asked in a national paper yet.
6.2.3 Physical Properties of Alcohols · read p. 266
Not asked in a national paper yet.
6.2.7 Physical Properties of Ethers · read p. 266
Not asked in a national paper yet.
6.2.1 Classification of Alcohols · read p. 267
Not asked in a national paper yet.
6.2.2 Nomenclature of Alcohols · read p. 269
Not asked in a national paper yet.
6.2.4 Preparation of Alcohols · read p. 272
  • 2013 E.C., Q17 – When the boiling point of hydrides of group VIA elements, H 2 O, H 2 S, H 2 Se and H 2 Te are arranged in the order of increasing boiling point. The trend is H 2 Te< H 2 Se< H 2 S< H 2 O, water having the highest boiling
  • 2005 E.C., Q8 – What would be the solubility of compared to ?
6.2.5 Chemical Properties of Alcohols · read p. 277
  • 2016 E.C., Q40 – Upon standing long, "Tella" or "Tej" turns sour. Which of the following is the CORRECT explanation for the observed effect?
  • 2005 E.C., Q28 – Which of the following reactions will produce an akyl carboxylic acid?
6.2.6 Structure and Nomenclature of Ethers · read p. 283
  • 2005 E.C., Q63 – Which of the following reactions will convert carboxylic acids to primary amines?
6.2.8 Preparation of Ethers · read p. 285
Not asked in a national paper yet.
6.2.9 Reactions of Ethers · read p. 286
Not asked in a national paper yet.
6.3.1 Nomenclature · read p. 288
Not asked in a national paper yet.
6.3 Aldehydes and Ketones · read p. 289
Not asked in a national paper yet.
6.3.2 Physical Properties of Aldehydes and Ketones · read p. 289
  • 2010 E.C., Q5 – Compounds that contain the carboxyl (carbonyl and hydroxyl) group are said to be:
  • 2005 E.C., Q33 – To which organic functional group does the following molecular representation, i.e, belong? ( and represent different alkyl chains)
6.4.1 Structure and Nomenclature of Carboxylic Acids · read p. 292
Not asked in a national paper yet.
6.4 Carboxylic Acids · read p. 294
  • 2018 E.C., Q33 – Why do tricarboxylic acids have higher boiling points than monocarboxylic acids?
  • 2016 E.C., Q4 – What is the molecular formula and IUPAC name of a saturated monocarboxylic acid having six carbon atoms?
  • 2013 E.C., Q41 – Which of the following is true about carboxylic acids?
  • 2011 E.C., Q10 – Acetylsalicylic acid (aspirin) has the structural formula: Which functional group (groups) is (are) present in aspirin? [Figure: A chemical structural formula of acetylsalicylic acid (aspirin). It consists of a benzene r
  • 2011 E.C., Q2 – Which of these compounds is propanoic acid?
  • 2010 E.C., Q68 – Which of the following is an organic acid?
  • 2007 E.C., Q63 – D: top-right substituent is a single carbon carrying three OH labels (one drawn up-left, one up-right, one to the right); ortho substituent is Br.]
  • 2006 E.C., Q32 – Which compound is a carboxylic acid?
6.4.2 Physical Properties of Carboxylic Acids · read p. 300
  • 2013 E.C., Q42 – What is the IUPAC name for the branched carboxylic acid: CH 3 -CH(Cl)-CH(CH 3 )-CH(CH 3 )-COOH
  • 2011 E.C., Q26 – What is the IUPAC name for the following carboxylic acid?
  • 2010 E.C., Q37 – The overall structure is ethyl butanoate, CH3CH2CH2C(=O)OCH2CH3.]
  • 2007 E.C., Q36 – what is the IUPAC name for the compound [Figure: A scanned condensed structural formula on one line: (CH3)2CHCH2CHCOH. A double-bonded O is drawn ABOVE the final carbon of the COH group (two short parallel vertical strok
6.4.3 Chemical Properties of Carboxylic Acids · read p. 303
  • 2018 E.C., Q30 – Given the following compounds, what would be the correct decreasing order of boiling point? I. CH₃CH₂CH(CH₃)CH₂COOH II. CH₃(CH₂)₄COOH III. CH₃CH₂C(CH₃)₂COOH
  • 2016 E.C., Q70 – Which of the following statements is CORRECT regarding the properties of monocarboxylic acids?
  • 2014 E.C., Q58 – Which of the following carboxylic acids is a solid substance at room temperature?
  • 2010 E.C., Q41 – Which of the following compounds would be the most soluble in ?
  • 2009 E.C., Q19 – The solubility of compounds containing the carboxylic acid group can be increased by reaction with
  • 2009 E.C., Q36 – Among the following acids, which has the lowest value?
6.4.4 Preparation of Carboxylic Acids · read p. 308
  • 2013 E.C., Q40 – Which one of the following statements describes laboratory and industrial preparation of acetic respectively?
  • 2010 E.C., Q65 – Which acid is produced when toluene is subjected to oxidation?
6.4.5 Fatty Acids · read p. 312
Not asked in a national paper yet.
6.4.6 Uses of Carboxylic Acids · read p. 312
6.5 Esters · read p. 312
Not asked in a national paper yet.
6.5.1 Sources of Esters · read p. 315
Not asked in a national paper yet.
6.5.2 Nomenclature · read p. 315
Not asked in a national paper yet.
6.5.3 Physical Properties · read p. 315
  • 2010 E.C., Q2 – The reaction between alcohols and acyl chlorides produces
6.5.4 Chemical Properties · read p. 316
  • 2016 E.C., Q6 – Given the following structure: What is the IUPAC name for the above structure?
  • 2014 E.C., Q65 – What is the IUPAC name of an ester having the molecular formula C₄H₉O₂?
  • 2006 E.C., Q36 – Which compound is an ester?
6.5.5 Preparation of Esters · read p. 318
Not asked in a national paper yet.
6.5.6 Uses of Esters · read p. 318
  • 2013 E.C., Q43 – Esters are characterized by the following properties EXCEPT
6.6.1 Source of Fats and Oils · read p. 319
  • 2018 E.C., Q31 – Which of the following describes a general method for synthesizing esters from carboxylic acids and alcohols, emphasizing reaction conditions and equilibrium?
  • 2013 E.C., Q19 – A chemistry teacher has added different reactants and reagents in three different test tubes as described below: I. Into the test tube A, he added ethanol, sodium dichromate, sulphuric acid. II. Into the test tube B, he
  • 2011 E.C., Q37 – Hydrolysis of ester leads to the formation of which of the following products in basic medium?
  • 2011 E.C., Q59 – During esterfication of carboxylic acid with alcohol which bond of carboxylic acid undergoes cleavage?
  • 2009 E.C., Q49 – Which of the following general class of organic molecules do triglycerides belong to?
  • 2009 E.C., Q20 – What products will be formed when a carboxylic acid reacts with an alcohol?
  • 2008 E.C., Q3 – Which of the following would react to form pentyl ethanoate?
  • 2006 E.C., Q4 – What is the chemical name for Aspirin?
  • 2006 E.C., Q64 – The value of for the following equilibrium reaction is 4.0 at a temperature of 373k. What mass of ethyl ester ( ) would be present in the equilibrium mixture if 15g of acetic acid and 11.5 g of ethanol were mixed and equ
  • 2005 E.C., Q32 – What is the product of the hydrolysis of easters in the presence of a mineral acid catalyst?
6.6 Fats and Oils · read p. 321
Not asked in a national paper yet.
6.6.3 Physical Properties of Fats and Oils · read p. 321
Not asked in a national paper yet.
6.6.2 Structure of Fats and Oils · read p. 322
Not asked in a national paper yet.
6.6.4 Hardening of Oils · read p. 322
  • 2018 E.C., Q32 – Which evaluation correctly describes physical and chemical properties of oils?
  • 2015 E.C., Q73 – Which type of substances has the following general formula? (R , R and R hydrocarbon groups.) 1 2 3
  • 2011 E.C., Q3 – Fats and oils can be classified as___________.
  • 2010 E.C., Q1 – Fats and oils are:
  • 2009 E.C., Q48 – The chemical makeup of oil is esters of glycerol with three
  • 2009 E.C., Q18 – Which of the following methods is used to convert oils into fats?
  • 2008 E.C., Q44 – Which of the following statements concerning fats and oils is incorrect?
  • 2008 E.C., Q12 – The difference between fats and oils is that
  • 2007 E.C., Q39 – Chemically, fats and oils are
  • 2006 E.C., Q35 – A triacylglycerol that is solid at room temperature is called:
  • 2006 E.C., Q3 – Commercially, liquid vegetable oils are converted to solid fats such as margarine by:
  • 2005 E.C., Q7 – What is the process that converts liquid vegetable oils to solid fats?
  • 2005 E.C., Q30 – What is the name of triacylglycerol(triglycerides) that is solid at room temperature?