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15) 15) Which of the following statements describes the meaning of mutorotation? A) a slow change...
please answer all :) 250 Chapter 9 Chapter 9 Practice Test Which of the following reagents...
please answer all :)
250 Chapter 9 Chapter 9 Practice Test Which of the following reagents is the best one to use in order to wing reagents is the best one to use in order to convert methyl alcohol into methy bromide? 2. Br HBr Br NaBr Br* a. what would be the major product obtained from the reaction of the epoxide shown below containing 0.1 M HCI? CH2CH; CH CH3 b. What would be the major product obtained from...
MULTIPLE CHOICE QUESTIONS [25 marks) 1. Which of the following technique(s)can readily distinguish between: CHsCO2C...
MULTIPLE CHOICE QUESTIONS [25 marks) 1. Which of the following technique(s)can readily distinguish between: CHsCO2CH2CH3 and CH3CH2CO2CH A. NMR B. IR C. MS D. A and C 2. 1H nuclei located near electromagnetic atoms tend to berelative to iHi nuclei which are not. A. Shielded D. Deshielded C.Resonanced D. None of the above What splitting pattern is observed in the 1H NMR spectrum for the underlined hydrogens? CH3CH2CH(CI)CH2CH2OH A. doublet B. triplet C. quartet D.quintet 4. What splitting pattern is...
1. Which of the following is an aldohexose? 2. Which of the following is a cetopentose? 3. Which of the following best d...
1.
Which of the following is an aldohexose?
2. Which of the following is a cetopentose?
3. Which of the following best describes the relationship
between D-glucose and D-fructose?
4. Which of the following is (are) L-alfohexose(s)?
5. Which of the following aldohexose(s) is (are)
dextrorotatory?
6. How many stereoisomers are possible for L-galactose? Draw
or look for its structure.
7. Which of the following conpounds is a pair of
enantiomers?
8. Draw the fisher projection for L-sedoheptulose and also...
b) CI d) He 2. Predict which of the following compounds are ionic and which are covalent, based on the location of...
b) CI d) He 2. Predict which of the following compounds are ionic and which are covalent, based on the location of their constituent atoms in the periodic table: (a) C1,CO (b) Mno (c) NCI, (d) CoBr (e) CaF (2) HI 3. Identify the more polar bond in each of the following pairs of bonds: (a) HF or HCI (b) NO or CO (C) SH or OH (d) PCI or SCI (e) CH or NH (1) SO or PO What...
QUESTION 8: QUESTION 12: QUESTION 14: QUESTION 16: Question 8 Which of the following compound is...
QUESTION 8:
QUESTION 12:
QUESTION 14:
QUESTION 16:
Question 8 Which of the following compound is hydrolyzed most rapidly by aqueous NaOH? cu&a condolos casos conocimi 00 | CHCOCCH, CH,CH CHUCNH, CH,COCH III. 0 B.11 C! 0 DIV Question 12 What is the major product of the following reaction? 0-OH heat C-OH O=O O= C-OH + CO2 > + H2O OLO + H2O V. AOH OH FO + CO2 OH CA! ОВІ 0 Question 14 Which is the structure of...
QUESTION 15 Which of the following is EXERGONIC? 6 CO2 + 6H20 - glucose + O2...
QUESTION 15 Which of the following is EXERGONIC? 6 CO2 + 6H20 - glucose + O2 fructose 6-phosphate + ATP – fructose 1,6-bisphosphate + ADP (AG = -3.4 kcal/mol) glucose 6-phosphate + ATP – fructose 6-phosphate + ADP (AG = +0.5 kcal/mol) GDP - Pi GTP + H2O QUESTION 17 Fate(s) of pyruvate is(are) Check all that apply. formation of ethyl alcohol by yeasts formation of glucose by gluconeogenesis in liver cells production of ketone bodies formation of lactate under...
12 Identify the compound showing following infrared spectrum. 15 Identify the reaction CH, OH sequence for...
12 Identify the compound showing following infrared spectrum. 15 Identify the reaction CH, OH sequence for the following transformation CH (A) (B) CH,CI KMnO4H CH,COCI LAIHE AICI AICI Br2 CH3COCI HOCH CH OH Mg FeBry AICI H30* other CHỊ0 Hyo (A) (B) ОН (C) (D) Mg. Å CHCOCI H90 ОН Br2 (C) FeBly ether AICI (D) CH,COCI BEZ Mg CH2OH,0" AICI, FeBryother A factor which explains the large difference in the - boiling point of OCH OH 13 following two...
12. Which of the following molecules represent ci-2. Hexene? A CHE HOCH,CH.CH CH CH,CH.CH -H CH,CH,...
12. Which of the following molecules represent ci-2. Hexene? A CHE HOCH,CH.CH CH CH,CH.CH -H CH,CH, D. CH3 CH, "CHCH 13) What is the major organic product of the following reaction? CH:CH-CH2 + H20 H 14) The angle between the bonds in CH, is approximately __ a) 104.5° b) 109. 5° C ) 90° d) 120 15) Which of the following organic families is present in the molecule provided below? CH, CH2=CH2-CH a) ether b) alkane c ) alkene d)...
14) Which of the following terms best describes the stereochemical relationship of compounds shown below in...
14) Which of the following terms best describes the stereochemical relationship of compounds shown below in Fischer notation? Clationship of the two CH3 Cats H HCI BAH Cats CH3 A) enantiomers B) diastereomers C) constitutional isomers D) cis/trans - isomers E) meso - same structure 15y What term describes the structural relationship between cis-1.2-dimethylcyclopentane and trans-1,2-dimethylcyclopentane? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers 16) How many diastereomers are there of the molecule shown below? ÇOZH...
1. Given the following peptide, which of the following statements is true? Question options: a) The...
1. Given the following peptide, which of the following
statements is true?
Question options:
a) The N-terminal residue is leucine.
b)This peptide contains 4 amino acid residues.
c) The peptide contains a total of 6 ionizable groups.
d) The net charge of this peptide at pH 7 is +1 Locate any
peptide bond along the backbone of the given peptide.
e) The bond between the C (of the C=O) and the N (of the N-H) of
a peptide bond has...
please answer all :)
250 Chapter 9 Chapter 9 Practice Test Which of the following reagents is the best one to use in order to wing reagents is the best one to use in order to convert methyl alcohol into methy bromide? 2. Br HBr Br NaBr Br* a. what would be the major product obtained from the reaction of the epoxide shown below containing 0.1 M HCI? CH2CH; CH CH3 b. What would be the major product obtained from...
MULTIPLE CHOICE QUESTIONS [25 marks) 1. Which of the following technique(s)can readily distinguish between: CHsCO2CH2CH3 and CH3CH2CO2CH A. NMR B. IR C. MS D. A and C 2. 1H nuclei located near electromagnetic atoms tend to berelative to iHi nuclei which are not. A. Shielded D. Deshielded C.Resonanced D. None of the above What splitting pattern is observed in the 1H NMR spectrum for the underlined hydrogens? CH3CH2CH(CI)CH2CH2OH A. doublet B. triplet C. quartet D.quintet 4. What splitting pattern is...
1.
Which of the following is an aldohexose?
2. Which of the following is a cetopentose?
3. Which of the following best describes the relationship
between D-glucose and D-fructose?
4. Which of the following is (are) L-alfohexose(s)?
5. Which of the following aldohexose(s) is (are)
dextrorotatory?
6. How many stereoisomers are possible for L-galactose? Draw
or look for its structure.
7. Which of the following conpounds is a pair of
enantiomers?
8. Draw the fisher projection for L-sedoheptulose and also...
b) CI d) He 2. Predict which of the following compounds are ionic and which are covalent, based on the location of their constituent atoms in the periodic table: (a) C1,CO (b) Mno (c) NCI, (d) CoBr (e) CaF (2) HI 3. Identify the more polar bond in each of the following pairs of bonds: (a) HF or HCI (b) NO or CO (C) SH or OH (d) PCI or SCI (e) CH or NH (1) SO or PO What...
QUESTION 8:
QUESTION 12:
QUESTION 14:
QUESTION 16:
Question 8 Which of the following compound is hydrolyzed most rapidly by aqueous NaOH? cu&a condolos casos conocimi 00 | CHCOCCH, CH,CH CHUCNH, CH,COCH III. 0 B.11 C! 0 DIV Question 12 What is the major product of the following reaction? 0-OH heat C-OH O=O O= C-OH + CO2 > + H2O OLO + H2O V. AOH OH FO + CO2 OH CA! ОВІ 0 Question 14 Which is the structure of...
QUESTION 15 Which of the following is EXERGONIC? 6 CO2 + 6H20 - glucose + O2 fructose 6-phosphate + ATP – fructose 1,6-bisphosphate + ADP (AG = -3.4 kcal/mol) glucose 6-phosphate + ATP – fructose 6-phosphate + ADP (AG = +0.5 kcal/mol) GDP - Pi GTP + H2O QUESTION 17 Fate(s) of pyruvate is(are) Check all that apply. formation of ethyl alcohol by yeasts formation of glucose by gluconeogenesis in liver cells production of ketone bodies formation of lactate under...
12 Identify the compound showing following infrared spectrum. 15 Identify the reaction CH, OH sequence for the following transformation CH (A) (B) CH,CI KMnO4H CH,COCI LAIHE AICI AICI Br2 CH3COCI HOCH CH OH Mg FeBry AICI H30* other CHỊ0 Hyo (A) (B) ОН (C) (D) Mg. Å CHCOCI H90 ОН Br2 (C) FeBly ether AICI (D) CH,COCI BEZ Mg CH2OH,0" AICI, FeBryother A factor which explains the large difference in the - boiling point of OCH OH 13 following two...
12. Which of the following molecules represent ci-2. Hexene? A CHE HOCH,CH.CH CH CH,CH.CH -H CH,CH, D. CH3 CH, "CHCH 13) What is the major organic product of the following reaction? CH:CH-CH2 + H20 H 14) The angle between the bonds in CH, is approximately __ a) 104.5° b) 109. 5° C ) 90° d) 120 15) Which of the following organic families is present in the molecule provided below? CH, CH2=CH2-CH a) ether b) alkane c ) alkene d)...
14) Which of the following terms best describes the stereochemical relationship of compounds shown below in Fischer notation? Clationship of the two CH3 Cats H HCI BAH Cats CH3 A) enantiomers B) diastereomers C) constitutional isomers D) cis/trans - isomers E) meso - same structure 15y What term describes the structural relationship between cis-1.2-dimethylcyclopentane and trans-1,2-dimethylcyclopentane? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers 16) How many diastereomers are there of the molecule shown below? ÇOZH...
1. Given the following peptide, which of the following
statements is true?
Question options:
a) The N-terminal residue is leucine.
b)This peptide contains 4 amino acid residues.
c) The peptide contains a total of 6 ionizable groups.
d) The net charge of this peptide at pH 7 is +1 Locate any
peptide bond along the backbone of the given peptide.
e) The bond between the C (of the C=O) and the N (of the N-H) of
a peptide bond has...
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