64 + Interview Questions in CLASS-11 IN CLASSIFICTION Page 1 InterviewSolution

1.	`IUPAC` name of succinic acid isA. Butanedioic acidB. Oxalic acidC. PropanedioicD. None of these
Answer» Correct Answer - a Succinic acid is `HOOC-CH_(2)-CH_(2)-COOH.`

Discussion

2.	The correct `IUPAC` name of the compound A. `1-`Ethenylcyclohexa`-2,4-`dieneB. `5-`Ethenycyclohex`-1,3-`dieneC. `6-`Ethenylcyclohexa`-1,3-`dieneD. Cyclohexa`-2,4-`dienylethene
Answer» Correct Answer - b Ring has two double bonds so name will and with ring.

Discussion

3.	The `IUPAC` name of the compound `CH_(3)CH=CHC-=CH` isA. pent`-4-`yn`-2-`eneB. pent`-3-`en`-1-`yneC. pent`-2-`en`-4-`yneD. pent`1-1`yn`-3-`ene
Answer» Correct Answer - b Follow `IUPAC` rules `overset(5)(C)H_(3).overset(4)(C)H=overset(3)(C)H.overset(2)(C)-=overset(1)(C)H`

Discussion

4.	Assertion `:` The central carbon`-`carbon bond in `1, 3-`butadiene is shorter than `n`-butane. Reason `:` In butadiene the central bond has `sp^(2)-sp^(2)` nature whereas in butane it is `sp^(3)-sp^(3)`.A. If both the assertion and reason are true and reason is the true explanation of the assertion .B. If both the assertion and reason are true bu the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - a Both assertion and reason are true and the reason is the correct explanation of the assertion.

Discussion

5.	In which of the following compound `IUPAC` numbering is correct `:`A. B. C. D.
Answer» Correct Answer - c

Discussion

6.	In above compound, total number of `2^(@)` hydrogen atoms are `:`A. 3B. 18C. 6D. 9
Answer» Correct Answer - C

Discussion

7.	Assertion `:` Neopentane is chain isomer of `n-`pentane. Reason `:` Molecular formula of neopentane and `n-`pentane is `C_(5)H_(12)`.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both the assertion and reason are true but the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - b

Discussion

8.	When an organic compound is present in aqueous medium and is less soluble in any organic solvent, then it is separated by `:`A. continuous extractionB. distillationC. chromatographyD. sublimation
Answer» Correct Answer - a

Discussion

9.	What if the name of the following compound ? A. `3-(` cyclohexanecarboxamideo`)-2-`hydroxy`-6` sulphobenzoic acidB. `2-`Carboxy`-4(`cyclohexanecarboxamido`)-3-`hydroxy`-`benzene sulphonic acidC. `5-(`cyclohexanecarboxamido`)-6-`hydroxy`-2-`sulphobenzoic acidD. None of these
Answer» Correct Answer - b

Discussion

10.	Which of the following has not bridgehead carbon ?A. B. C. D.
Answer» Correct Answer - d

Discussion

11.	Write the `IUPAC` name of the following compound. A. `4-(`benzene carboxamide `)-6-`nitrobenzene sulphonic acidB. `4-(`benzoylamino`)-6-`nitrobenzene sulphonic acidC. `4-(`benzoylamino`)-2-`nitrobenzene sulphonic acidD. `4-(`benzamido`)-6-` nitrobenzene sulphonic acid
Answer» Correct Answer - c

Discussion

12.	The systematic name of the compound isA. Bicyclo `[2,2,0]` octane`-2,6-`dieneB. Bicyclo`[2,2,2]` octane `-2,6-`dieneC. Bicyclo`[1,1,1]`octanoneD. None of these
Answer» Correct Answer - b

Discussion

13.	The `IUPAC` name of the compound A. Bicyclo`[2,2,2]` octane `-3-`olB. Bycyclo`[4,2,0]` octane `-6-` olC. Bicyclo`[4,2,0]` octane `-3-` olD. Bicycle `[2,4,0]` octan `-3-` ol
Answer» Correct Answer - c

Discussion

14.	The Diels `-`Alder reaction between `1,3-`cyclohexanediene and propenoic acid gives the product. It `IUPAC` name is A. `2-`carbocy bicyclo`[2.2.2]` oct`-5-`eneB. Bicyclo`[2.2.2]`oct`-5-`en`-5-`oicacidC. Bicyclo`[2.2.2]` oct `-5-`en`-2-`carboxylic acidD. `3-`carboxy bicyclo `[2.2.2]`oct`-5-`ene
Answer» Correct Answer - c

Discussion

15.	The `IUPAC` name of the compound isA. `5-`Chloro oct `-2-` eneB. `7-`Chloro bicyclo`[2,2,2]` oct `-2-`eneC. `5-`Chloro bicyclo`[2,2,2]`oct `-2-` eneD. None of these
Answer» Correct Answer - c

Discussion

16.	The `IUPAC` name of the spiro compound, isA. `8-`Ethyl`[4,5]`deca`-1,7-`dieneB. `2-`Ethyl spiro`[5,4]`deca`-1,6-`dieneC. `3-`Ethyl spiro `[5,4]`deca `-3,7-`dieneD. `2-`Ethyl spiro`[4,5]` deca`-2,6-`diene
Answer» Correct Answer - d

Discussion

17.	If `0.228 g` of silver salt of dibasic acid gabe a residue of `0.162 g` of silver on ignition then molecular weight of the acid isA. 70B. 80C. 90D. 100
Answer» Correct Answer - c Mass of silver salt taken`=0.228 gm` Mass of silver left`=0.162 gm` Basicity of acid `=2` Step`1-` To calculate the equivalent mass of silver salt `(E)` `=(E)/(108)=(0.228)/(0.162)=E=(0.228)/(0.162)xx108` `=1529`(Eq. mass o f silver salt `)` Step`2-` To calculate the eq. mass of acid. Eq. mass of acid `-` Eq. mass of silver salt`-`Eq. mass of `Ag+` Basicity `=152-108+1=152-109` `=43(` Eq. mass of acid `)` Step`3-` To determine the molecular mass of acid. Mol. mass of acid `=` Eq. mass of acid `xx` basicity `=45 x2=90`.

Discussion

18.	The most suitable method of separation of a mixture of ortho and para nitrophenol in the ratio `1:1` is :A. ChromatographyB. CrystallisationC. steam distillationD. sublimation
Answer» Correct Answer - c The ortho and para isomers can be separated by steam distillation `o-`Nitrophenol is steam volatile due to intramolecular hydrogen bonding while `p-`nitro phenol less volatile due to intermolecular hydrogen bonding which cause association of molecular.

Discussion

19.	The best method for the separation of naphthalene and benzoic acid from their mixture isA. Chromatography CrystallisationB. DistillationC. SublimationD. sublimation
Answer» Correct Answer - b Mixture of benzoic acid and naphthalene can be separated from hot water in which benzoic acid dissolves but naphthalene does not.

Discussion

20.	The most suitable method of separation of a mixture of ortho and para nitrophenol in the ratio `1:1` is :A. distillationB. crystallizationC. sublimationD. chromatography
Answer» Correct Answer - A Para nitrophenol has higher to `b.p.` due to `H-` bonding.

Discussion

21.	A gas mixture contains `50%` helium and `50%` methane by volume. What is the percent by weight of methane in the mixture.A. `80.03%`B. `20.05%`C. `50%`D. `75%`
Answer» Correct Answer - a Solution contain `He+CH_(4)` Their `mol. Wt.=4+16=20` `% wt.` of `CH_(4)=(wt. of CH_(4))/("Total wt". )xx100=(16)/(20)xx10=80%`

Discussion

22.	The sodium extract on acidification with acetric acid and then adding lead acetate solution gives a black precipitate. The organic compound contains.A. nitrogenB. halogenC. sulphurD. phosphorus
Answer» Correct Answer - c A black precipitate of `PbS` is formed.

Discussion

23.	Assertion `:` Glycerol is purified by distilled under reduced pressure. Reason `:` Glycerol is a trihydric alcohol.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both the assertion and reason are true but the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - b Both assertion and reason are true but reason is not the correct explanation of the assertion.

Discussion

24.	Assertion `:` The yield in organic reactinos are `100%` Reason `:` The organic reactions take place along with side reaction.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both the assertion and reason are true but the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - d The yield of organic reactions is not `100%` because they take place with side reactions.

Discussion

25.	Common name of ethyl isocynide isA. PropionisonitrileB. AcetoisonitrileC. IsopropionitrileD. Propanoisonitrile
Answer» Correct Answer - A `underset(Ethyl isocyni de IUPAC)(CH_(3)-CH_(2)-N)overset(rarr)=C` underset(Ac et oisonitril e (Common))( ) `

Discussion

26.	Camphor is often used in molecular mass determination becauseA. It is volatileB. It is solvent for organic substancesC. It is readily availableD. It has a very high cryoscopic constant
Answer» Correct Answer - a Due to its volatile nature camphor is often used in molecular mass determination.

Discussion

27.	The correct `IUPAC` name of the compound is:A. `6-`Methyl`-1-`methyl`-4-`oxohept`-6-`ene`-1-`sulphonic acidB. `7-`Ethyl`-5-`oxooct `-7-`ene`-2-`sulphonic acidC. `2-`Ethyl `-7-`sulphooct `-1-`ene `-4-`oneD. `7-`Methylene `-5-`oxononane `-2-`sulphonic acid
Answer» Correct Answer - b `-SO_(3)H` is higher in priority.

Discussion

28.	What is the `IUPAC`name of the following compound ? A. `5-`bromo`-2-`heptyneB. `5-`bromo`-5-`methyl`-2-`hexyneC. `5-`bromo`-5,5-`dimethyl hexyneD. `2-`bromo`-2-`methyl`-4-`hexyne
Answer» Correct Answer - b Triople bond has preference over alkyl and halide locants. Hence, they are given lower number.

Discussion

29.	The correct `IUPAC` name of the compound A. `2-`Phenoxycarbonylbenzenecarboxylic acidB. Phenyl`-2-`carboxybenzenecarboxylateC. `2-`Benzoyloxybenzenecarboxylic acidD. `2-`Benzyloxycarbonylbenzenecarboxylic acid
Answer» Correct Answer - a `2-`Phenoxycarbonylbenzenecarboxylic acid.

Discussion

30.	What is the correct `IUPAC` name of A. Dioxy butaneB. `2,6-`dioxy butaneC. `1,2-`dimethoxy ethaneD. Dimethyl ethyl ether
Answer» Correct Answer - c It is a diether with two methoxy groups at `C-1` and `C-2` of parent ethane.

Discussion

31.	Which of the following is the best scientific method to test the presence of water in liquid ?A. Use of anhydrous copper sulphateB. Use of litmus paperC. TasteD. Smell
Answer» Correct Answer - A Anhydrous `CuSO_(4)` is used to test presence of water in any liquid because it changes its colour white to blue.

Discussion

32.	Suggest the suitable name of the following compound. `CH_(2)=CH-OH`A. Viny alcoholB. Hydroxy etheneC. Hydroxy ethyleneD. Ethene `-2-`ol
Answer» Correct Answer - a `CH_(2)=CH-OH(`vinyl alcohol`)`

Discussion

33.	The correct `IUPAC` name of the compound is A. `4-`Bromo`-1-`chloro`-2-`fluoroiodomethylbuteneB. `4-`Bromo`-2-`chloromethyl`-1-`fluoro`-1-`iodbut `-1-`eneC. `2-(2-`Bromoethyl`)-3-`chloro`-1-`fluoro`-1-`iodoprop`-1-`eneD. `1-`Bromo`-3-`chloromethyl`-4-`fluoro`-4-`iodobut`-1-`ene
Answer» Correct Answer - b Lower number to carbon having double bond.

Discussion

34.	The label of a bromobutanoic acid bottle has been washed away. Someone is trying to relabel it with correct `IUPAC` name. Whih of the following cannot be a name ?A. `2-`bromobutanoic acidB. `3-`bromobutanoic acidC. `4-`bromobutanoic acidD. `1-`bromo`-3-`butanoic acid
Answer» Correct Answer - d In monocarboxylic acid, numbering always starts from carbon of `-COOH` group.

Discussion

35.	Name of the compound given below is A. `5-`ethyl`-6-`methyloctaneB. `4-`ethyl`-3-`methylocataneC. `3-`methyl`-4-`ethyloctaneD. `2,3-`diethylheptane
Answer» Correct Answer - b 4 ethyl`,3` methyl ocatane

Discussion

36.	In the estimation of sulphur organic compound on treating with conc. `HNO_(3)` is converted toA. `SO_(2)`B. `H_(2)S`C. `H_(2)SO_(4)`D. `SO_(3)`
Answer» Correct Answer - c In Carius method sulphur of organic compound is converted in to `H_(2)SO_(4)`. `S+H_(2)O+3Ounderset(HNO_(3))overset(Delta)rarr H_(2)SO_(4)`.

Discussion

37.	Assertion `:` Refining of petroleum involves fractional distillation. Reason `:` Fractional distillation involves repeated distillation.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both the assertion and reason are true but the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - B Petroleium can be refined by fraction distillation since it separate crude petroleum into useful fractions such as gasoline, kerosene oil, lubricating oil etc.

Discussion

38.	Assertion `:` Potassium can be used in Lassaigne test. Reason `:` Potassium reacts vigorously.A. If both the assertion and reason are true and reason is the true explanation of the assertion .B. If both the assertion and reason are true bu the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - d Assertion is false but reason is true.

Discussion

39.	Chromatography is a valuable method for the separation, isolation, purification and identification of the constituents of a misture and it is based on general principle ofA. Phase ruleB. Phase distributionC. Interphase separationD. Phase operation
Answer» Correct Answer - a

Discussion

40.	The structure of allyl viny thioether isA. `CH_(2)=CH-CH_(2)-S-CH_(2)-CH=CH_(2)`B. `CH_(2)=CH_S-CH_(2)-CH=CH_(2)`C. `CH_(2)=CH-S-CH=CH_(2)`D. None of these
Answer» Correct Answer - b `CH_(2)=CH-S-CH_(2)-CH=CH_(2)` Allyl vinyl thioether

Discussion

41.	Which of the following compound is unsaturated hydrocarbon.A. `CH_(3)-overset(O)overset(\|\|)(C)-CH_(3)`B. `CH_(3)-C-=N`C. D.
Answer» Correct Answer - d According to `IUPAC` only alkene and alkyne are unsaturated hydrocarbon.

Discussion

42.	Which of the following compound is unsaturated hydrocarbon.A. B. `CH_(3)-C-=N`C. D.
Answer» Correct Answer - D According to `IUPAC` only alkene and alkyne are unsaturated hydrocarbon.

Discussion

43.	In the compound `CH_(2)=CH-CH_(2)-CH_(2)-C-=CH` the `C_(2)-C_(3)` bond is ofA. `sp-sp^(2)`B. `sp^(2)-sp^(3)`C. `sp-sp^(3)`D. `sp^(3)-sp^(3)`
Answer» Correct Answer - b The correct numbering of parent chain is `overset(1)(C)H_(2)=overset(2)(C)H-overset(3)(C)H_(2)-overset(4)(C)H_(2)-overset(5)(C)-=overset(6)(C)H` Double and triple bond are equidistant from teminals, numbering is done in alphabetical order, giving lower number ot ene. Hence, `C_(2)=C_(3)` are `sp^(2)-sp^(3)` hybridised

Discussion

44.	Empirical formula of a compound is `CH_(2)O` and its vapour density is 30. Molecular formula of the compound isA. `C_(2)H_(6)O_(3)`B. `C_(2)H_(4)O_(2)`C. `C_(2)H_(4)O`D. `CH_(2)O`
Answer» Correct Answer - B Empirical formula `=CH_(2)O` Empirical formula mass `=12+2+16=30` Mol. Mass `2xxV.D.=2xx30=60` `n=(Mol. mass)/("Emperical mass")=(60)/(32)=2` Molecular formula`=(` emperical formula`)_(n)` `=(CH_(2)O)_(2)=C_(2)H_(4)O_(2)`

Discussion

45.	An organic compound contains `C,H` and `O` in the proportion of `6:1:8` by weight, respectively. Its vapour density is 30. Its molecular formula will beA. `C_(2)H_(4)O_(2)`B. `CH4O`C. `CH_(2)O`D. `C_(3)HO`
Answer» Correct Answer - a `"Element No. of moles Simple ratio"` `C" "6" "6//12=0.5=1" "1` `H" "1" "1//1=1=2" "2` `O" "8" "8//16=0.5=1" "1` Thus, Empirical formula `=CH_(2)O` Empiricial formula mass `=30` Mol. Mass `2xxVD=2xx30=60` `n=(60)/(30)=2` Mol. formula`=(CH_(2)O)_(2)=C_(2)H_(4)O_(2).`

Discussion

46.	The `IUPAC` name of the A. `4-`Oxobenzoic acidB. `4-`Formyl benzoic acidC. `4-`Formyl cyclohexane carboxylic acidD. None of these
Answer» Correct Answer - c As `CHO` is behaving as substituent.

Discussion

47.	The correct `IUPAC` name of the compound. A. `N-`Formy`-4-`chlorobenzenamineB. `N-`Formyl`-4-`chloroanilineC. `N-(4-`chlorophenyl`)` methanamideD. `N-(`Parachlorphenyl`)-N-`formylaniline
Answer» Correct Answer - c `N-(4-`chlorophenyl`)` methanamide

Discussion

48.	`IUPAC` name of A. `4-`Chlorophenyl benzoateB. Phenyl`-4-`chlorobenzenecarboxylate.C. Benzy`-4-`chlorobenzenecarboxylate.D. `4-`Chloro diphenycarboxylate.
Answer» Correct Answer - b Phenyl`-4-`chlorobenzenecarboxylate.

Discussion

49.	How many `H-` atoms are present in `0.046 g` of ethanol ?A. `6 xx 10^(20)`B. `1.2 xx 10^(21)`C. `3 xx 10^(21)`D. `3.6xx 10^(21)`
Answer» Correct Answer - D `Mol. Wt. `of `C_(2)H_(5)OH` `=2xx12+5+16+1=64` `:. 48g C_(2)H_(5)OH` has `H atm =6xxN_(A)` `:. 0.046g C_(2)H_(5)OH ` has `H atm` `=(6xx6.02xx10^(23)xx0.046)/(46)=3.6xx10^(21)`

Discussion

50.	Assertion `:` Ethanol and water mixture can be separed by simple distillation. Reason `:` Ethanol and water forms azeotropic mixture.A. If both the assertion and reason are true and reason is the correct explanation of the assertion .B. If both the assertion and reason are true bu the reason is not the correct explanation of assertion.C. If the assertion is true but reason is false.D. If assertion is false but reason is true.
Answer» Correct Answer - d Separation of alcohol`-` water is done by adding `C_(6)H_(6)` and then using fractional distillation.

Discussion

Explore topic-wise InterviewSolutions in .

`IUPAC` name of succinic acid isA. Butanedioic acidB. Oxalic acidC. PropanedioicD. None of these

The correct `IUPAC` name of the compound A. `1-`Ethenylcyclohexa`-2,4-`dieneB. `5-`Ethenycyclohex`-1,3-`dieneC. `6-`Ethenylcyclohexa`-1,3-`dieneD. Cyclohexa`-2,4-`dienylethene

The `IUPAC` name of the compound `CH_(3)CH=CHC-=CH` isA. pent`-4-`yn`-2-`eneB. pent`-3-`en`-1-`yneC. pent`-2-`en`-4-`yneD. pent`1-1`yn`-3-`ene

In which of the following compound `IUPAC` numbering is correct `:`A. B. C. D.

In above compound, total number of `2^(@)` hydrogen atoms are `:`A. 3B. 18C. 6D. 9

When an organic compound is present in aqueous medium and is less soluble in any organic solvent, then it is separated by `:`A. continuous extractionB. distillationC. chromatographyD. sublimation

What if the name of the following compound ? A. `3-(` cyclohexanecarboxamideo`)-2-`hydroxy`-6` sulphobenzoic acidB. `2-`Carboxy`-4(`cyclohexanecarboxamido`)-3-`hydroxy`-`benzene sulphonic acidC. `5-(`cyclohexanecarboxamido`)-6-`hydroxy`-2-`sulphobenzoic acidD. None of these

Which of the following has not bridgehead carbon ?A. B. C. D.

Write the `IUPAC` name of the following compound. A. `4-(`benzene carboxamide `)-6-`nitrobenzene sulphonic acidB. `4-(`benzoylamino`)-6-`nitrobenzene sulphonic acidC. `4-(`benzoylamino`)-2-`nitrobenzene sulphonic acidD. `4-(`benzamido`)-6-` nitrobenzene sulphonic acid

The systematic name of the compound isA. Bicyclo `[2,2,0]` octane`-2,6-`dieneB. Bicyclo`[2,2,2]` octane `-2,6-`dieneC. Bicyclo`[1,1,1]`octanoneD. None of these

The `IUPAC` name of the compound A. Bicyclo`[2,2,2]` octane `-3-`olB. Bycyclo`[4,2,0]` octane `-6-` olC. Bicyclo`[4,2,0]` octane `-3-` olD. Bicycle `[2,4,0]` octan `-3-` ol

The Diels `-`Alder reaction between `1,3-`cyclohexanediene and propenoic acid gives the product. It `IUPAC` name is A. `2-`carbocy bicyclo`[2.2.2]` oct`-5-`eneB. Bicyclo`[2.2.2]`oct`-5-`en`-5-`oicacidC. Bicyclo`[2.2.2]` oct `-5-`en`-2-`carboxylic acidD. `3-`carboxy bicyclo `[2.2.2]`oct`-5-`ene

The `IUPAC` name of the compound isA. `5-`Chloro oct `-2-` eneB. `7-`Chloro bicyclo`[2,2,2]` oct `-2-`eneC. `5-`Chloro bicyclo`[2,2,2]`oct `-2-` eneD. None of these

The `IUPAC` name of the spiro compound, isA. `8-`Ethyl`[4,5]`deca`-1,7-`dieneB. `2-`Ethyl spiro`[5,4]`deca`-1,6-`dieneC. `3-`Ethyl spiro `[5,4]`deca `-3,7-`dieneD. `2-`Ethyl spiro`[4,5]` deca`-2,6-`diene

If `0.228 g` of silver salt of dibasic acid gabe a residue of `0.162 g` of silver on ignition then molecular weight of the acid isA. 70B. 80C. 90D. 100

The most suitable method of separation of a mixture of ortho and para nitrophenol in the ratio `1:1` is :A. ChromatographyB. CrystallisationC. steam distillationD. sublimation

The best method for the separation of naphthalene and benzoic acid from their mixture isA. Chromatography CrystallisationB. DistillationC. SublimationD. sublimation

The most suitable method of separation of a mixture of ortho and para nitrophenol in the ratio `1:1` is :A. distillationB. crystallizationC. sublimationD. chromatography

A gas mixture contains `50%` helium and `50%` methane by volume. What is the percent by weight of methane in the mixture.A. `80.03%`B. `20.05%`C. `50%`D. `75%`

The sodium extract on acidification with acetric acid and then adding lead acetate solution gives a black precipitate. The organic compound contains.A. nitrogenB. halogenC. sulphurD. phosphorus

Common name of ethyl isocynide isA. PropionisonitrileB. AcetoisonitrileC. IsopropionitrileD. Propanoisonitrile

Camphor is often used in molecular mass determination becauseA. It is volatileB. It is solvent for organic substancesC. It is readily availableD. It has a very high cryoscopic constant

The correct `IUPAC` name of the compound is:A. `6-`Methyl`-1-`methyl`-4-`oxohept`-6-`ene`-1-`sulphonic acidB. `7-`Ethyl`-5-`oxooct `-7-`ene`-2-`sulphonic acidC. `2-`Ethyl `-7-`sulphooct `-1-`ene `-4-`oneD. `7-`Methylene `-5-`oxononane `-2-`sulphonic acid

What is the `IUPAC`name of the following compound ? A. `5-`bromo`-2-`heptyneB. `5-`bromo`-5-`methyl`-2-`hexyneC. `5-`bromo`-5,5-`dimethyl hexyneD. `2-`bromo`-2-`methyl`-4-`hexyne

The correct `IUPAC` name of the compound A. `2-`Phenoxycarbonylbenzenecarboxylic acidB. Phenyl`-2-`carboxybenzenecarboxylateC. `2-`Benzoyloxybenzenecarboxylic acidD. `2-`Benzyloxycarbonylbenzenecarboxylic acid

What is the correct `IUPAC` name of A. Dioxy butaneB. `2,6-`dioxy butaneC. `1,2-`dimethoxy ethaneD. Dimethyl ethyl ether

Which of the following is the best scientific method to test the presence of water in liquid ?A. Use of anhydrous copper sulphateB. Use of litmus paperC. TasteD. Smell

Suggest the suitable name of the following compound. `CH_(2)=CH-OH`A. Viny alcoholB. Hydroxy etheneC. Hydroxy ethyleneD. Ethene `-2-`ol

The correct `IUPAC` name of the compound is A. `4-`Bromo`-1-`chloro`-2-`fluoroiodomethylbuteneB. `4-`Bromo`-2-`chloromethyl`-1-`fluoro`-1-`iodbut `-1-`eneC. `2-(2-`Bromoethyl`)-3-`chloro`-1-`fluoro`-1-`iodoprop`-1-`eneD. `1-`Bromo`-3-`chloromethyl`-4-`fluoro`-4-`iodobut`-1-`ene

The label of a bromobutanoic acid bottle has been washed away. Someone is trying to relabel it with correct `IUPAC` name. Whih of the following cannot be a name ?A. `2-`bromobutanoic acidB. `3-`bromobutanoic acidC. `4-`bromobutanoic acidD. `1-`bromo`-3-`butanoic acid

Name of the compound given below is A. `5-`ethyl`-6-`methyloctaneB. `4-`ethyl`-3-`methylocataneC. `3-`methyl`-4-`ethyloctaneD. `2,3-`diethylheptane

In the estimation of sulphur organic compound on treating with conc. `HNO_(3)` is converted toA. `SO_(2)`B. `H_(2)S`C. `H_(2)SO_(4)`D. `SO_(3)`

Chromatography is a valuable method for the separation, isolation, purification and identification of the constituents of a misture and it is based on general principle ofA. Phase ruleB. Phase distributionC. Interphase separationD. Phase operation

The structure of allyl viny thioether isA. `CH_(2)=CH-CH_(2)-S-CH_(2)-CH=CH_(2)`B. `CH_(2)=CH_S-CH_(2)-CH=CH_(2)`C. `CH_(2)=CH-S-CH=CH_(2)`D. None of these

Which of the following compound is unsaturated hydrocarbon.A. `CH_(3)-overset(O)overset(||)(C)-CH_(3)`B. `CH_(3)-C-=N`C. D.

Which of the following compound is unsaturated hydrocarbon.A. B. `CH_(3)-C-=N`C. D.

In the compound `CH_(2)=CH-CH_(2)-CH_(2)-C-=CH` the `C_(2)-C_(3)` bond is ofA. `sp-sp^(2)`B. `sp^(2)-sp^(3)`C. `sp-sp^(3)`D. `sp^(3)-sp^(3)`

Empirical formula of a compound is `CH_(2)O` and its vapour density is 30. Molecular formula of the compound isA. `C_(2)H_(6)O_(3)`B. `C_(2)H_(4)O_(2)`C. `C_(2)H_(4)O`D. `CH_(2)O`

An organic compound contains `C,H` and `O` in the proportion of `6:1:8` by weight, respectively. Its vapour density is 30. Its molecular formula will beA. `C_(2)H_(4)O_(2)`B. `CH4O`C. `CH_(2)O`D. `C_(3)HO`

The `IUPAC` name of the A. `4-`Oxobenzoic acidB. `4-`Formyl benzoic acidC. `4-`Formyl cyclohexane carboxylic acidD. None of these

The correct `IUPAC` name of the compound. A. `N-`Formy`-4-`chlorobenzenamineB. `N-`Formyl`-4-`chloroanilineC. `N-(4-`chlorophenyl`)` methanamideD. `N-(`Parachlorphenyl`)-N-`formylaniline

`IUPAC` name of A. `4-`Chlorophenyl benzoateB. Phenyl`-4-`chlorobenzenecarboxylate.C. Benzy`-4-`chlorobenzenecarboxylate.D. `4-`Chloro diphenycarboxylate.

How many `H-` atoms are present in `0.046 g` of ethanol ?A. `6 xx 10^(20)`B. `1.2 xx 10^(21)`C. `3 xx 10^(21)`D. `3.6xx 10^(21)`