Purification, Classification and Nonemeclature of Organic Compound Test 2

Total Questions:50 Total Time: 75 Min

Remaining:

 

Questions 1 of 50

Question:On complete combustion 1.4 g hydrocarbon gave 1.8 g water. Empirical formula of the hydrocarbon is

Answers Choices:

\(CH\)

\(C{H_2}\)

\(C{H_3}\)

\(C{H_4}\)

Questions 2 of 50

Question:In the estimation of sulphur organic compound on treating with conc. \(HN{O_3}\) is converted to

Answers Choices:

\(S{O_2}\)

\({H_2}S\)

\({H_2}S{O_4}\)

\(S{O_3}\)

Questions 3 of 50

Question:In Carius method 0.099 g organic compound gave 0.287 g \(AgCl\). The percentage of chlorine in the compound will be

Answers Choices:

28.6

71.7

35.4

64.2

Questions 4 of 50

Question:0.24 g of an organic compound gave 0.22 g \(C{O_2}\) on complete combustion. If it contains 1.66 % hydrogen, then the percentage of C and O will be

Answers Choices:

12.5 and 36.6

25 and 75

25 and 36.6

25 and 80

Questions 5 of 50

Question:A compound has 50% carbon, 50% oxygen and approximate molecular weight is 290. Its molecular formula is

Answers Choices:

CO

\({C_4}{O_3}\)

\({C_{12}}{O_9}\)

\({C_3}{O_3}\)

Questions 6 of 50

Question:On analysis, a saturated hydrocarbon is found to contain 83.70 percent carbon and 16.30% hydrogen. The empirical formula will be (at. wt. of C=12, at. wt. of H = 1)

Answers Choices:

\({C_3}{H_6}\)

\({C_3}{H_8}\)

\({C_3}{H_7}\)

\({C_6}{H_{12}}\)

Questions 7 of 50

Question:An organic compound has C = 60%, H = 13.3% and O = 26.7%. Its empirical formula will be

Answers Choices:

\({C_3}{H_6}O\)

\({C_2}{H_6}{O_2}\)

\({C_4}{H_8}{O_2}\)

\({C_3}{H_8}O\)

Questions 8 of 50

Question:A hydrocarbon has C=85.72% and remaining H. The hydrocarbon is

Answers Choices:

\({C_2}{H_4}\)

\({C_2}{H_6}\)

\({C_2}{H_2}\)

\(C{H_4}\)

Questions 9 of 50

Question:In the qualitative analysis of nitrate a brown ring is formed due to the formation of

Answers Choices:

\(N{O_2}\)

\(FeS{O_4}N{O_2}\)

\({N_2}O.FeS{O_4}\)

\(FeS{O_4}.NO\)

Questions 10 of 50

Question:Percentage composition of an organic compounds is as follows: C = 10.06, H = 0.84, Cl = 89.10. Which of the following corresponds to its molecular formula if the vapour density is 60.0

Answers Choices:

\(C{H_2}C{l_2}\)

\(CHC{l_3}\)

\(C{H_3}Cl\)

None of these

Questions 11 of 50

Question:The percentage of \({N_2}\) in urea is about

Answers Choices:

18.05

28.29

46.66

85.56

Questions 12 of 50

Question:A compound of carbon hydrogen and nitrogen contains three elements in the respective ratio of 9 : 1 : 35 grams. The Empirical formula for the compound is

Answers Choices:

\({C_2}{H_4}N\)

\({C_3}{H_4}N\)

\({C_3}{H_6}N\)

\({C_2}{H_6}N\)

Questions 13 of 50

Question:Which of the following is the best scientific method to test the presence of water in a liquid

Answers Choices:

Use of anhydrous copper sulphate

Use of litmus paper

Taste

Smell

Questions 14 of 50

Question:The decomposition of organic compounds in the presence of oxygen and without formation of odoriferous substances, is called

Answers Choices:

Decay

\({N_2}\) fixation

Nitrification

Denitrification

Questions 15 of 50

Question:Which of the following compounds is used as a refrigerants

Answers Choices:

\(N{H_3}\)

\(C{H_2}{F_2}\)

\(CC{l_4}\)

\(C{H_3}COON{H_4}\)

Questions 16 of 50

Question:The latest technique for the purification of organic compounds is

Answers Choices:

Fractional distillation

Chromatography

Vacuum distillation

Crystallisation

Questions 17 of 50

Question:The presence of halogen, in an organic compounds, is detected by

Answers Choices:

Iodoform test

Silver nitrate test

Beilstein’s test

Millon’s test

Questions 18 of 50

Question:p-nitrophenol and o-nitrophenol are separated by

Answers Choices:

Crystallisation

Fractional crystallization

Distillation

Steam distillation

Questions 19 of 50

Question:How will you separate a solution (miscible) of benzene \( + CHC{l_3}\)

Answers Choices:

Sublimation

Filtration

Distillation

Crystallisation

Questions 20 of 50

Question:A mixture of camphor and benzoic acid can be separated by

Answers Choices:

Chemical method

Sublimation

Fractional distillation

Extraction with a solvent

Questions 21 of 50

Question:Dumas method involves the determination of nitrogen content in the organic compound in the form of

Answers Choices:

NH\(_{\rm{3}}\)

N\(_{\rm{2}}\)

NaCN

(NH\(_4\)) \(_2\) SO\(_4\)

Questions 22 of 50

Question:When 32.25gm ethyl chloride dehydro halogenated, if gives 50%. Alkene, what is the mass of product. (atomic mass of chlorine = 35.5)

Answers Choices:

14 gm

28 gm

64.5 gm

56 gm

7 gm

Questions 23 of 50

Question:The IUPAC name of \(C{H_3}C{H_2}COC{H_2}C{H_3}\) is

Answers Choices:

3-pentanone

2-pentanone

Diethyl ketone

All the above

Questions 24 of 50

Question:The IUPAC name of \(C{H_3}COO{C_2}{H_5}\) will be

Answers Choices:

Ethyl acetate

Ethyl ethanoate

Methyl propanoate

None of these

Questions 25 of 50

Question:IUPAC name of \({(C{H_3})_2}CH - CH = CH - C{H_3}\) is

Answers Choices:

2-methyl-3-pentene

4-methyl-2-pentene

1, 2-isopropyl-1-propene

3-isopropyl-2-propene

Questions 26 of 50

Question:IUPAC name of \(C{H_2} = CH - CH{(C{H_3})_2}\) is

Answers Choices:

1, 1-dimethyl-2-propene

3-methyl-1-butene

2-vinyl propane

1-isopropyl ethylene

Questions 27 of 50

Question:The IUPAC name of \(C{H_3}C \equiv CCH{(C{H_3})_2}\) is

Answers Choices:

4-methyl-2-pentyne

4, 4-dimethyl-2-butyne

Methyl isopropyl acetylene

2-methyl-4-pentyne

Questions 28 of 50

Question:The IUPAC name of the compound having structure \({C_2}{H_5} - \mathop {\mathop {C - }\limits_{||\,\,\,\,} }\limits_{C{H_2}} \mathop {\mathop {CH - }\limits_{|\,\,\,\,\,\,\,\,\,} }\limits_{C{H_3}\,\,} C{H_3}\) is

Answers Choices:

3-methyl-2-ethyl butene-1

2-ethyl-3-methyl butene-1

3-ethyl-3-methyl butene-1

Ethyl isopropyl ethene

Questions 29 of 50

Question:The IUPAC name of \({({C_2}{H_5})_2}CHC{H_2}OH\) is

Answers Choices:

2-ethyl butanol-1

2-methyl pentanol-1

2-ethyl pentanol-1

3-ethyl butanol-1

Questions 30 of 50

Question:IUPAC name of the following compound is \(C{H_3} - \mathop {\mathop {\mathop {\mathop {C - C{H_2}}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{H\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{{C_6}{H_5}\,\,\,\,} - C{H_3}\)

Answers Choices:

2-cyclohexylbutane

2-phenylbutane

3-cyclohexylbutane

3-phenylbutane

Questions 31 of 50

Question:The IUPAC name for \(C{H_3}CH = CHC{H_2}\mathop {\mathop {CHC{H_2}}\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{N{H_2}\,\,\,\,\,\,\,} COOH\) is

Answers Choices:

5-aminohex-2-ene carboxylic acid

5-amino-2-heptenoic acid

3-amino-5-heptenoic acid

\(\beta - \) amino-\(\delta - \)heptenoic acid

Questions 32 of 50

Question:The IUPAC name of \(C{H_2} = CH - C{H_2}Cl\) Is

Answers Choices:

Allyl chloride

1-chloro-3-propene

Vinyl chloride

3-chloro-1-propene

Questions 33 of 50

Question:The IUPAC name of \(C{H_3}C{H_2}COCl\) is

Answers Choices:

Propanoyl chloride

Ethanoyl chloride

Acetyl chloride

Chloroethane

Questions 34 of 50

Question:IUPAC name of the compound \(\mathop C\limits^4 {H_2} = \mathop C\limits^3 H - \mathop C\limits^2 {H_2} - \mathop C\limits^1 {H_2}OH\) is

Answers Choices:

1-buten-4-ol

3-buten-1-ol

4-hydroxy-1-butene

1-butenol-4

Questions 35 of 50

Question:IUPAC name of \(C{H_3} - \mathop {\mathop {\mathop {\mathop {C - }\limits^{|\,\,\,\,\,} }\limits^{H\,\,\,} }\limits_{|\,\,\,\,\,\,} }\limits_{{C_2}{H_5}\,\,} \mathop {\mathop {\mathop {\mathop {C - C{H_3}}\limits^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits^{{C_4}{H_9}\,\,\,\,\,} }\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{C{H_3}\,\,\,\,\,\,\,\,\,} \) is

Answers Choices:

2-butyl-2-methyl-3-ethylbutane

2-ethyl-3, 3-dimethylheptane

3, 4, 4-trimethylheptane

3, 4, 4-trimethyloctane

Questions 36 of 50

Question:The IUPAC name of the compound \(C{H_3} - \mathop {\mathop {C = CH}\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{OH\,\,\,\,\,\,\,} - C{H_2} - COOH\) is

Answers Choices:

Hydroxypentenoic acid

4-hydroxy-3-pentenoic acid

4-hydroxy-4-pentenoic acid

4-hydroxy-4-methyl-3-butenoic acid

Questions 37 of 50

Question:Which is the IUPAC name of \(C{H_3}--\mathop {\mathop {C - C{H_2}Cl}\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}^{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{{C_2}{H_5}\,\,\,\,\,\,\,\,\,\,}^{{C_2}{H_5}\,\,\,\,\,\,\,\,\,\,} \)

Answers Choices:

1-chloro-2, 2-diethylpropane

3-chloro-2, 2-diethylpropane

1-chloro-2-ethyl-2 methylbutane

1-chloro-2, 2-diethyl-2 methylethane

Questions 38 of 50

Question:The IUPAC name of the compound \(CHO - {(C{H_2})_4} - COOH\)

Answers Choices:

Heaxan-1-al-6-oic acid

Formyl-hexanoic acid

Hexanal-1-carboxylic acid

Hexanoic acid 5-al-1

Questions 39 of 50

Question:The IUPAC name of \(C{H_3} - \mathop {\mathop {C\, - \,\,}\limits_{|\,\,\,\,\,\,\,}^{|\,\,\,\,\,\,\,} }\limits_{C{H_3}}^{OH} C{H_2} - \mathop {\mathop {CH}\limits^{|\,\,\,\,\,} }\limits^{OH} - C{H_3}\) is

Answers Choices:

4-methyl-2, 4, pentanediol

1, 1-dimethyl 1, 1, 3 butanediol

2-methyl-2, 4 pentanediol

1, 2, 3-trimethyl-1, 3 propanediol

Questions 40 of 50

Question:The IUPAC name of the compound \(C{H_3} - \mathop {\mathop {C\,}\limits_{|\,\,\,\,} = }\limits_{C{H_3}} C{H_2}C{H_2}OH\) is

Answers Choices:

2-methyl-2-butenol

2-methyl-3-butenol

3-methyl-2-butenol

3-methyl- but-2-ene-1-ol

Questions 41 of 50

Question:The IUPAC name of \(C{H_3}C \equiv CCH\,{(C{H_3})_2}\)is

Answers Choices:

4 methyl-2 pentyne

4, 4-dimethyl-2-butyne

Methyl isopropyl acetylene

2-methyl-4-pentyne

Questions 42 of 50

Question:Which of the following compound have wrong IUPAC name

Answers Choices:

\(C{H_3} - C{H_2} - C{H_2} - COO - C{H_2}C{H_3}\)\( \to \) ethyl butanoate

\(C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,\,\,} }\limits_{C{H_3}} - C{H_2} - CHO\)\( \to \) 3-methyl-butanal

\(C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,} }\limits_{OH} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,\,\,} }\limits_{C{H_3}} - C{H_3}\)\( \to \) 2-methyl-3-butanol

\(C{H_3} - \mathop {CH\,\,\, - \,\,}\limits_{\mathop {|\,\,\,\,\,\,\,\,\,\,\,}\limits_{C{H_3}\,\,\,} } \mathop C\limits^{\mathop {|\,|}\limits^O } - C{H_2} - C{H_3}\)\( \to \) 2-methyl-3 pentanone

Questions 43 of 50

Question:The IUPAC name of the compound \(C{H_2} = CH - C{H_2} - C{H_2} - C \equiv CH\) is

Answers Choices:

1, 5-hexenyne

1-hexyne-5-ene

1, 5-hexynene

1-hexene-5-yne

Questions 44 of 50

Question:The IUPAC name of \(C{H_3} - \mathop {\mathop {CH}\limits^{|\,\,\,\,\,} }\limits^{OH} - C{H_2} - \mathop {CHCHO}\limits^{\mathop {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}\limits^{C{H_3}\,\,\,\,\,\,\,\,} } \) is

Answers Choices:

4 Hydroxy-2-methylpentanal

2-hydroxy-4 methyl pentanal

2-methyl pent-4-ol-1-al

None of these

Questions 45 of 50

Question:The IUPAC name of the compound \(C{H_3} - CH({C_2}{H_5}) - CH = CH - C{H_3}\) is

Answers Choices:

4-ethyl-2-pentene

4-methyl 2-hexene

3-ethyl-2-pentene

2-ethyl-3-pentene

Questions 46 of 50

Question:IUPAC name of \(C{H_3} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,\,\,} }\limits_{C{H_3}} - C{H_2} - \mathop {\mathop {CH}\limits_{|\,\,\,\,\,\,} }\limits_{CN\,} - C{H_3}\)

Answers Choices:

2-cyno, 3-methyl, hexane

3-methyl, 5-cyanohexane

2-4 dimethyl, cyanopentane

2-cyno, 3-methylhexane

Questions 47 of 50

Question:IUPAC name of \(C{H_2} = CH - CH(C{H_3}C{H_2})\mathop {\mathop {C = }\limits_{|\,\,\,\,\,} }\limits_{Br} C{H_2}\) is ...

Answers Choices:

4-bromo-3-ethyl-1, 4-pentadiene

2-bromo-3-ethyl-1, 4-pentadiene

2-bromo-3-ethyl-1, 5-pentadiene

None of these

Questions 48 of 50

Question:Write the IUPAC name of \(C{H_3}C{H_2}COOH\)

Answers Choices:

Ethyl formic acid

Ethyl carboxylic acid

Ethane methanoic acid

Propanoic acid

Questions 49 of 50

Question:IUPAC name of \({H_3}C - \mathop {\mathop {CH - C{H_2}}\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{{C_2}{H_5}\,\,\,\,\,\,\,\,\,\,\,} - \mathop {\mathop {CH - C{H_2}Cl}\limits_{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} }\limits_{OH\,\,\,\,\,\,\,\,\,\,\,\,\,} \) is

Answers Choices:

1-chloro-4-methyl -2-hexanal

1-chloro--4-ethyl-2-pentanol

1-chloro-4-methyl-2-hexanol

1-chloro--2-hydroxy-4-methyl hexane

Questions 50 of 50

Question:IUPAC name of \({(C{H_3})_3}C - CH = C{H_2}\) is

Answers Choices:

3,3,3-trimethyl-1-propene

1,1,1-trimethyl-2-propene

3,3-dimethyl-1-butene

2,2-dimethyl-3-butene