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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1001. |
The IUPAC name of the compound `CH_(3)-CH(OH)-COOH` isA. Lactic acidB. 2 - Hydroxy propanoic acidC. 3 - Hydroxy propanoic acidD. Carboxy propanol |
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Answer» Correct Answer - B |
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| 1002. |
Which is correct IUPAC name of the following compound `{:(" "CH_(3)" "CH_(3)),(" |"" |"),(CH_(3)-CH-CH-CH-CH_(3)),(" |"),(" "CH_(2)-CH_(3)):}`A. 3-isopropyl-2-methylpentaneB. 3-ethyl-2,4-dimethylpentaneC. 2, 4-dimethyl-3-ethylpentaneD. 3-isopropyl-4-methylpentane |
| Answer» Correct Answer - B | |
| 1003. |
`CH_(3)CH(OH)CH_(2)CH_(2)COOH`A. 4-hydroxy pentanoic acidB. 1-carboxy-3-butanoic acidC. 1-carboxy-4-butanolD. 4-carboxy-2-butanol |
| Answer» Correct Answer - A | |
| 1004. |
IUPAC name of `(CH_(3))_(2)N-C_(2)H_(5)` isA. Dimethyl ethyl amineB. Dimethyl amino methaneC. Dimethyl amino ethaneD. N, N-dimethyl amino ethane |
| Answer» Correct Answer - D | |
| 1005. |
IUPAC name of the compound is `{:(" "CH_(3)),(" |"),(CH_(3)CH_(2)CH_(2)CH_(2)CH_(2)-CH-C-CH_(2)CH_(3)),(" |"" |"),(" "CH_(3)" "CH_(2)CH_(2)CH_(3)):}`A. 3,4-dimethyl-3-n propyl nonaneB. 5, 7-dimethyl-7-n-propyl nonaneC. 4-ethyl -4,5-dimethyl decaneD. 6, 7-dimethyl-7-ethyl decane |
| Answer» Correct Answer - C | |
| 1006. |
What is correct IUPAC name for `{:(" "H" "O),( " |"" |"),(CH_(3)-C-CH=CH-CH_(2)-C-OH),(" |"),(" "CH_(3)):}`A. 5-methyl-3-hexenoic acidB. 5-carboxyl-2-methylpenteneC. 4-isopropyl-3-butanoic acidD. None of the above |
| Answer» Correct Answer - A | |
| 1007. |
The IUPAC name of `{:(CH_(3)-CH_(2)CH=C CH_(2)OH),(" |"),(" "CH_(3)):}` will beA. 2-methyl pentyl alcoholB. 4-methyl-3-pentene-olC. 2-methyl pent-2-ene-1-olD. 4-methyl pentyl alcohol |
| Answer» Correct Answer - C | |
| 1008. |
IUPAC name of the compound is `{:(CH_(3)-CH-CH_(2)-CH(OH)-CH_(3)),(" |"),(" "CH_(2)),(" |"),(" "CH_(3)):}` isA. 4-ethyl-2-pentanolB. 4-methyl-2-hexanolC. 2-ethyl-2-pentanolD. 3-methyl-2-hexanol |
| Answer» Correct Answer - B | |
| 1009. |
The IUPAC name of `{:(H_(3)C-CH-CH_(2)-CH-CH_(2)Cl),(" |"" |"),(" "C_(2)H_(5)" "OH),():}`A. 1-chloro-4-methyl-2-hexanalB. 1-chloro-4-ethyl-2-pentanolC. 1-chloro-4-methyl-2-hexanolD. 1-chloro-2-hydroxy-4-methyl hexane |
| Answer» Correct Answer - C | |
| 1010. |
IUPAC name of acetyl salicylic acid isA. Butan-1-olB. 2-acetoxy benzoic acidC. p-benzene acidD. p-acetyl benzoic acid |
| Answer» Correct Answer - B | |
| 1011. |
Carbolic acid is less acidic than:A. `CH_(3)COOH`B. C. D. |
| Answer» Correct Answer - A::C::D | |
| 1012. |
The correct order regarding the electronegativity of hybrid orbitals of carbon is ?A. `SpgtSp^(2)gtSp^(3)`B. `SpltSp^(2)ltSp^(3)`C. `SpgtSp^(2)ltSp^(3)`D. `SpltSp^(2)gtSp^(3)` |
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Answer» Correct Answer - A |
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| 1013. |
The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature isA. `-CONH_(2)gt-CHOgt-SO_(3)Hgt-COOH`B. `-COOH gt-SO_(3)H gt-CONH_(2)gt-CHO`C. `-SO_(3)H gt-COOH gt-CONH_(2) gt-CHO`D. `-CHO gtCOOH gt-SO_(3)H gt-CONH_(2)` |
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Answer» Correct Answer - B `-COOH gt-SO_(3)Hgt-CONH_(2)gt-CHO` |
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| 1014. |
In Carius method of estimation of halogens `250 mg` of an organic compound gave `141 mg` of `AgBr`. The percentage of bromine in the compound is (atomic mass `Ag = 108, Br = 80`)A. 24B. 36C. 48D. 60 |
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Answer» Correct Answer - A `% X = ("Atomic mass of Br")/("Molecular mass of AgBr") xx ("Wt. of AgBr")/("Wt. of organic Bromide") xx 100` Thus `% Br = (80)/(188) xx (141)/(250) xx 100 = 24` |
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| 1015. |
Minimum numbe of C atoms for an alkene hydrocarbon, that shows geometrical & optical isomerism bothe ( not consider the isotopes)A. 5B. 6C. 7D. 8 |
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Answer» Correct Answer - 3 4-methyl 2-hexane |
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| 1016. |
An enantiomerically pure acid is treated with racemic mixture of an alcohol having one chiral carbon. The ester formed will be :A. Optically active mixtureB. Pure enantiomerC. Meso compoundD. Racemic mixture |
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Answer» Correct Answer - A The product will be optically active because the chiral carbon atoms of both the acid and alcohol retain their configuration. |
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| 1017. |
In which of the following sepcies , is the underlined carbon has `sp^3` -hybridisation ?A. `CH_(3)ul(C)OOH`B. `CH_(3)ul(C)H_(2)OH`C. `CH_(3)ul(C)OCH_(3)`D. `CH_(2)=ul(C)H-CH_(3)` |
| Answer» Correct Answer - B | |
| 1018. |
Which of the following represent the given mode of hybridisation `sp^(2)-sp^(2)-sp-sp` from left to right?A. `H_(2)C=CH-C-=N`B. `HC -= C-C-C-=CH`C. `H_(2)C = C = C= CH_(2)`D. |
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Answer» Correct Answer - A In `H_(2)Cunderset(pi)overset(sigma)=CH-C-=N` `Hoverset(sigma)-underset(sp^(2))underset(uarr)overset(H)overset(|sigma)(C)underset(pi)overset(sigma)=underset(sp^(2))underset(uarr)overset(H)overset(|sigma)(C)overset(sigma)-underset(sp)underset(uarr)(C)underset(2pi)overset(sigma)-= underset(sp)underset(uarr)(N)` |
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| 1019. |
Which of the following hydrocarbons has the lowest dipole momentA. B. `CH_(3)-HC = HC - CH_(3)`C. `CH_(3)-CH_(2)CH=CH_(2)`D. `CH_(2)=CH-CH=CH_(2)` |
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Answer» Correct Answer - B For `CH_(3)-CH=CH_(3), mu = 0`, because this molecule is asymmetrical planar. |
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| 1020. |
The hyperconjugative stabilities of tert-butyl cation and `2`-butene, respectively, are due toA. `sigmararrp` (empty) and `sigmararrpi^(**)` electron delocalisations.B. `sigmararrsigma^(**)` and `sigmararrpi` electron delocalisations.C. `sigmararrp` (filled) and `sigmararr pi` electron delocalisations.D. P (filled) `rarrsigma^(**)` and `sigmararrpi^(**)` electron delocalisations. |
| Answer» Correct Answer - A | |
| 1021. |
The observed order of carbocation stability isA. `CH_(3+) gt CH_(3)CH_(2+) gt (CH_(3))_(2)CH^(+) gt (CH_(3))_(3)C^(+)`B. `CH_(3)CH_(2+) gt CH_(3+) gt (CH_(3))_(2)CH^(+) gt (CH_(3))_(3)C^(+)`C. `(CH_(3))_(2)CH^(+) gt CH_(3+) gt CH_(3)CH_(2+) lt (CH_(3))_(3)C^(+)`D. `(CH_(3))_(3)C^(+) gt (CH_(3))_(2)CH^(+) gt CH_(3)CH_(2+) gt CH_(3+)` |
| Answer» Correct Answer - D | |
| 1022. |
Electron deficient species are known as electrophiles. All positviely changed species are not electronphilic. Covalent compound having complete octer but if central atom has unfilled d-orbital also act as electrophiles. All electrophiles are not always Lewis acid Which of the following is electrophilic in nature?A. `CO_(2)`B. `H_(3)overset(* *)O^(o+)`C. `CH_(4)`D. `overset(Ɵ)AlCl_(4)` |
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Answer» Correct Answer - A `H-underset(H)underset(|)overset(*)C-H` cannot accept lp of `e^(-)` accept `e^(-)` |
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| 1023. |
Electron deficient species are known as electrophiles. All positviely changed species are not electronphilic. Covalent compound having complete octer but if central atom has unfilled d-orbital also act as electrophiles. All electrophiles are not always Lewis acid Which of the following electrophile is not Lewis acid?A. `BCl_(3)`B. `BeCl_(2)`C. `overset(dot)CH_(3)`D. `underset(* *)overset(* *)CH_(2)` |
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Answer» Correct Answer - C::D `H-underset(H)underset(|)overset(*)C-H` cannot accept lp of `e^(-)` |
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| 1024. |
The most stable anion is:A. B. C. D. |
| Answer» Correct Answer - A | |
| 1025. |
In an anion `HCOO^-` the two carbon-oxygen bonds are found to be equal length. What is the reason for it?A. electronic orbitals of carbon atom are are hybridisedB. the `C=O` bond is weaker than the `C-O` bondC. the anion `HCOO^(-)` has two resonating structuresD. the anion is obtained by removal of a proton from the acid molecule. |
| Answer» Correct Answer - C | |
| 1026. |
Isomers which can be interconverted through rotation around a single bond areA. ConformersB. DiastereomersC. EnantiomersD. Positional isomers |
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Answer» Correct Answer - A Isomers obtained by the rotation of C-C single bond are called conformers. |
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| 1027. |
Base strength of `(1) H_(3)Coverset(Theta)(C)H_(2), (2) H_(2)C=overset(Theta)(C)H` and (3) `H-C-=overset(Theta)(C)` is in the order ofA. `(i) gt (iii) gt (ii)`B. `(i) gt (ii) gt (iii)`C. `(ii) gt (i) gt (iii)`D. `(iii) gt (ii) gt (i)` |
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Answer» Correct Answer - B `underset(sp^(3))(CH_(3)-overset(Θ)(C)H_(2)) " " underset(sp^(2))(CH_(2)=overset(Θ)(C)H) " " underset(sp)(CH-=overset(Θ)(C))` order of electro negativity `sp gt sp^(2) gt sp^(3)` on increasing E.N. basic strength decreases hence order is `CH_(3)-overset(Θ)(C)H_(2) gt CH_(2) = overset(Θ)(C)H gt CH -= overset(Θ)(C)`. |
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| 1028. |
The stability of carbanions in the following (i) `RC-=overset(-)overset(..)C` , (ii) (iii) `R_(2)C=overset(-)overset(..)CH` , (iv) `R_(3)C-overset(-)overset(..)CH_(2)` is in the orderA. `(ii) gt (iii) gt (iv) gt (i)`B. `(iv) gt (ii) gt (iii) gt (i)`C. `(i) gt (iii) gt (ii) gt (iv)`D. `(i) gt(ii) gt (iii) gt (iv)` |
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Answer» Correct Answer - D `RC-=overset(-)overset(..)C` is the most stable because `C` atom carrying the negative charge is `sp` hybridized (most electronegative `C`). Both (ii) and (iii) have negative charge on `sp^(2)` hybrized `C` atom but (iii) is less stable due to electron releasing alkyl groups. (iv) is the least stable as negative charge is carried by `sp^(3)` hybridized `C` atom. |
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| 1029. |
Stereo isomers have differentA. Molecular massB. Molecular FormulaC. Structural formulaD. Configuration |
| Answer» Correct Answer - 4 | |
| 1030. |
Geometrical isomerism may be exhibited by compounds having atleast.A. One double bondB. One triple bondC. One asymmetric carbonD. One polar bond |
| Answer» Correct Answer - 1 | |
| 1031. |
Which of the following group show `+M`effect ?A. `-CN`B. `-O-NO`C. `-"CCl"_(3)`D. `-CHO` |
| Answer» Correct Answer - B | |
| 1032. |
Which of the following group show `-m` effect?A. `-CMe_(3)`B. `-O-overset(O)overset(||)underset(O)underset(||)"S"-O-R`C. `-NH-overset(O)overset(||)C-CH_(3)`D. `-overset(O)overset(||)underset(O)underset(||)"S"-O-R` |
| Answer» Correct Answer - D | |
| 1033. |
Which of the following group show `+M` and `-l` effect?A. `-underset(O)underset(||)C-F`B. `-underset(O)underset(||)C-OR`C. `-O^(Theta)`D. `-OH` |
| Answer» Correct Answer - D | |
| 1034. |
Which is the strongest acid in 3 ?A. AB. BC. CD. D |
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Answer» Correct Answer - a Acidic strength `prop-I, -M, -H` groups on acidic centre. Basic strength `prop+1 , +M,+H` groups on basic centre. |
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| 1035. |
Which of the following group shown `+mgt - I` effect?A. `-F`B. `-O-overset(O)overset(||)C-R`C. `-underset(O)underset(||)C-R`D. `-COOH` |
| Answer» Correct Answer - B | |
| 1036. |
Which of the following group show `-m` and `-I` effect?A. `-NO_(2)`B. `-NH_(2)`C. `-OH`D. `-F` |
| Answer» Correct Answer - A | |
| 1037. |
Which is the strongest acid in 3 ?A. AB. BC. CD. D |
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Answer» Correct Answer - d Acidic strength `prop-I, -M, -H` groups on acidic centre. Basic strength `prop+1 , +M,+H` groups on basic centre. |
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| 1038. |
`+m` and `+I` both effects are shown by:A. `-overset(..)underset(..)OH`B. `-overset(..)NHCH_(3)`C. `-O^(Theta)`D. `-C(CH_(3))_(3)` |
| Answer» Correct Answer - C | |
| 1039. |
Maximum extent of steric inhibition of resonance can be expected inA. B. C. D. |
| Answer» Correct Answer - C | |
| 1040. |
Which is the strongest acid in 4?A. AB. BC. CD. D |
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Answer» Correct Answer - d Acidic strength `prop-I, -M, -H` groups on acidic centre. Basic strength `prop+1 , +M,+H` groups on basic centre. |
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| 1041. |
The weakest base among the following isA. `C_(6)H_(5)SO_(3)^(-)`B. `C_(2)H_(5)O^(-)`C. `C_(6)H_(5)O^(-)`D. `CH_(3)-CH=CH-CH_(2)-O^(-)` |
| Answer» Correct Answer - A | |
| 1042. |
The weakest `+m` group of the given species by:A. `-OCH_(3)`B. `-F`C. `-I`D. `-N(CH_(3))_(2)` |
| Answer» Correct Answer - C | |
| 1043. |
Which is weakest acid in 4 ?A. AB. BC. CD. D |
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Answer» Correct Answer - a Acidic strength `prop-I, -M, -H` groups on acidic centre. Basic strength `prop+1 , +M,+H` groups on basic centre. |
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| 1044. |
Which is weakest acid in 1 ?A. AB. BC. CD. D |
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Answer» Correct Answer - a Acidic strength `prop-I, -M, -H` groups on acidic centre. Basic strength `prop+1 , +M,+H` groups on basic centre. |
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| 1045. |
Which is the strongest acid in 1 ?A. AB. BC. CD. D |
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Answer» Correct Answer - b Acidic strength `prop-I, -M, -H` groups on acidic centre. Basic strength `prop+1 , +M,+H` groups on basic centre. |
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| 1046. |
Correct order of acidic strengths A. `XgtYgtZ`B. `ZgtYgtX`C. `YgtZgtX`D. `XgtZgtY` |
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Answer» Correct Answer - D `-COOH` is most acidic, Z is more acidic due to `-I` power of X. |
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| 1047. |
The compounds whose structures are shown below, incorporate a variety of functional groups. The questions on the right risk ask you to identify which compounds have a specific functional group. For each compound that has the designed group, enter the appropriate number. The aromatic rings should not be counted as double bonds. |
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Answer» Correct Answer - `A-1 ,3 , 4 ,6 ,7, 8, 9 ; B-2 ; C-6 ; D-3 , 4 , 6 , 7 , 9 ; E-6 , 8 , 9 ; F-6 ; G-7 ; H-9; I- 4, 7 ` `A-1,3,4,6,7,8,9 , " "B-2,5 , " "C-6," "D-3,4,6,7,9` E-6,8,9, `" "` F-6, `" "` G-7 `" "` H-9 , I-4,7 |
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| 1048. |
Arrange in the order of increasing acidic strengths. A. `X gt Z gt Y`B. `Z lt X gt Y`C. `X gt Y gt Z`D. `Z gt X gt Y` |
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Answer» Correct Answer - A (a) Carboxylic acids are stronger acid than `overset (oplus) N H_3` in amino acid and `- overset (oplus) N H_3( Y).(Z)` is more acidic than `(Y)` due than `(Y)`. Hence, the acidic order : `X gt Z gt Y`. |
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| 1049. |
Consider the following carbanions: Correct decreasing order of stability is :A. `IIgtIIIgtIVgtI`B. `IIIgtIVgtIgtII`C. `IVgtIgtIIgtIII`D. `IgtIIgtIIIgtIV` |
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Answer» Correct Answer - A `-NO_(2)` is `-M` group so, stabilies anion while `-underset(* *)overset(* *)OCH_(3)` is `+M` group. So, it destabilise anion. |
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| 1050. |
Which of the following phenols is most soluble in aqueous sodium bicarbonate ?A. 2,4-dihydrozyacetophenoneB. p-cyanophenolC. 3,4-dicyanophenolD. 2,4,6-tricyanophenol |
| Answer» Correct Answer - D | |