JEE Main & Advanced Chemistry Biomolecules / जैव-अणु Question Bank

done Fats and Lipids Total Questions - 27

• question_answer1)
  Tripalmitin is
  A)
                  A protein             done clear
  B)
                  An enzyme done clear
  C)
                  A lipid    done clear
  D)
                  A carbohydrate done clear
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• question_answer2)
  On hydrolysis, all lipids yield
  A)
                  Monocarboxylic acids     done clear
  B)
                  Monohydric alcohols done clear
  C)
                  Monohaloalkanes            done clear
  D)
                  Enzymes done clear
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• question_answer3)
  Which of the following is not a lipid
  A)
                  Oils         done clear
  B)
                  Fats done clear
  C)
                  Waxes  done clear
  D)
                  Proteins done clear
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• question_answer4)
  The 'acid value' of an oil or fat is measured in terms of weight of
  A)
                  \[N{{H}_{4}}OH\]             done clear
  B)
                  NaOH done clear
  C)
                  KOH       done clear
  D)
                  \[C{{H}_{3}}COOH\] done clear
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• question_answer5)
  The ?saponification value? of an oil or fat is measured in terms of
  A)
                  \[N{{H}_{4}}OH\]             done clear
  B)
                  NaOH done clear
  C)
                  KOH       done clear
  D)
                  \[{{C}_{6}}{{H}_{5}}OH\] done clear
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• question_answer6)
  The ?iodine value? of an oil indicates
  A)
                  Its boiling point done clear
  B)
                  Inflammability done clear
  C)
                  Unsaturation present in acid contents done clear
  D)
                  Solubility of salt in oils done clear
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• question_answer7)
  Hardening of oils is caused by
  A)
                  \[{{H}_{2}}\]       done clear
  B)
                  \[{{N}_{2}}\] done clear
  C)
                  \[{{O}_{2}}\]      done clear
  D)
                  \[C{{O}_{2}}\] done clear
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• question_answer8)
  Which of the following is obtained when an oil is hydrolysed with alkali
  A)
                  Fat          done clear
  B)
                  Wax done clear
  C)
                  Soap      done clear
  D)
                  Vitamin done clear
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• question_answer9)
  Which of the following indicates the number of free \[-OH\] groups in an oil or fat
  A)
                  Iodine value done clear
  B)
                  Acid value done clear
  C)
                  Acetyl value done clear
  D)
                  Saponification value done clear
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• question_answer10)
  Which of the following is not glyceride
  A)
                  Lipids (simple)   done clear
  B)
                  Phospholipids done clear
  C)
                  Sphingolipids     done clear
  D)
                  All done clear
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• question_answer11)
  The most important food reserves of animals and plants are [MP PET 1993]
  A)
                  Carbohydrates  done clear
  B)
                  Proteins done clear
  C)
                  Vitamins              done clear
  D)
                  Fats done clear
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• question_answer12)
  Which of the following gives maximum energy in metabolic processes   [CPMT 1991; MP PET 1999]
  A)
                  Proteins               done clear
  B)
                  Carbohydrates done clear
  C)
                  Lipids     done clear
  D)
                  Vitamins done clear
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• question_answer13)
  The energy change produced by the combustion of food is called the 'calorific value'. The highest calorific value is given by                [NCERT 1984; AFMC 1988]
  A)
                  Proteins               done clear
  B)
                  Fats done clear
  C)
                  Carbohydrates  done clear
  D)
                  Vitamins done clear
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• question_answer14)
  Cell membrane contains
  A)
                  Alternate layers of phospholipid and coline done clear
  B)
                  Double layers of phospholipid done clear
  C)
                  Double layers of phospholipid with polar ends projected outside done clear
  D)
                  Double layers of phospholipid with polar ends projected inside done clear
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• question_answer15)
  Which of the following compounds do not belong to lipids [AFMC 1998]
  A)
                  Fats        done clear
  B)
                  Amino acids done clear
  C)
                  Phospholipids    done clear
  D)
                  Carbohydrates done clear
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• question_answer16)
  Which is not a macromolecule    [BHU 1998]
  A)
                  DNA       done clear
  B)
                  Starch done clear
  C)
                  Palmitate             done clear
  D)
                  Insulin done clear
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• question_answer17)
  A distinctive and characteristic functional group of fats is [Kerala (Med.)  1999; AFMC 2005]
  A)
                  An ester group done clear
  B)
                  A peptide group done clear
  C)
                  A ketonic group done clear
  D)
                  An alcoholic group done clear
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• question_answer18)
  The waxes are long chain compounds of fatty acids, which belong to the class of               [BHU 1999; AFMC 2005]
  A)
                  Esters    done clear
  B)
                  Ethers done clear
  C)
                  Alcohols               done clear
  D)
                  Acetic acid done clear
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• question_answer19)
  Hydrolytic reaction of fats, with caustic soda, is known as [Kerala (Med.) 2000; Pb. PMT 2004; MNR 1988]
  A)
                  Acetylation         done clear
  B)
                  Carboxylation done clear
  C)
                  Saponification   done clear
  D)
                  Esterification done clear
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• question_answer20)
  Fat consists of                                   [MH CET 2002]
  A)
                  Monohydroxy carboxylic acid done clear
  B)
                  Monohydroxy aliphatic carboxylic acid  done clear
  C)
              Monohydroxy aliphatic, saturated carboxylic acid done clear
  D)
                  Dihydroxy aliphatic carboxylic acid done clear
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• question_answer21)
  The alcohol obtained by the hydrolysis of oils and fats is [KCET 2001]
  A)
                  Glycol    done clear
  B)
                  Glycerol done clear
  C)
                  Propanol done clear
  D)
                  Pentanol done clear
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• question_answer22)
  Iodine value is related to              [MP PET 2002]
  A)
                  Fats and oils       done clear
  B)
                  Alcohols done clear
  C)
                  Esters    done clear
  D)
                  Hydrocarbons done clear
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• question_answer23)
  Phospholipids are esters of glycerol with              [CBSE PMT 2003]
  A)
                  Three phosphate groups done clear
  B)
                  Three carboxylic acid residues done clear
  C)
                  Two carboxylic acid residues and one phosphate group done clear
  D)
                  One carboxylic acid residue and two phosphate groups done clear
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• question_answer24)
  Oils and fats are jointly called     [MP PET 2003]
  A)
                  Lipids     done clear
  B)
                  Soaps done clear
  C)
                  Proteins               done clear
  D)
                  Polymer done clear
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• question_answer25)
  \[\underset{C{{H}_{2}}OOC{R}'''}{\overset{C{{H}_{2}}OOC{R}'\,}{\mathop{\underset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{CHOOCR''\,\,}}}\,}}}\,\underset{\text{Hydrolysis}}{\mathop{\xrightarrow{\text{Enzyme}}}}\,\overset{C{{H}_{2}}OH}{\mathop{\underset{C{{H}_{2}}OH}{\mathop{\underset{|\,\,\,\,\,\,\,\ \,\,\,\,\,\,\,\,}{\overset{|\,\,\,\,\,\,\,\,\ \,\,\,\,\,\,\,}{\mathop{CHOH}}}\,}}\,}}\,+\underset{{R}'''COOH}{\overset{{R}'COOH}{\mathop{\underset{+}{\overset{+}{\mathop{{R}''COOH\,}}}\,}}}\,\] The enzyme used in the above reaction is            [AMU 2003]
  A)
                  Amylase               done clear
  B)
                  Lactase done clear
  C)
                  Lipase   done clear
  D)
                  Invertase done clear
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• question_answer26)
  Oleic, stearic and palmitic acids are          [Pb. CET 2002]
  A)
                  Fatty acid             done clear
  B)
                  Amino acid done clear
  C)
                  Nucleic acid        done clear
  D)
                  Essential acid done clear
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• question_answer27)
  An example for a saturated fatty acid, present in nature is [KCET 2005]
  A)
                  Oleic acid             done clear
  B)
                  linoleic acid done clear
  C)
                  Linolenic acid     done clear
  D)
                  Palmitic acid done clear
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