1099 + Interview Questions in GENERAL-ORGANIC-CHEMISTRY IN GENERAL AWARENESS Page 9 InterviewSolution

401.	In electrophilic substitution reaction nitrobenzene isA. Meta-directingB. Ortho-directingC. Para-directingD. Not reactive and does not undergo any substitution
Answer» Correct Answer - C

Discussion

402.	The IUPAC name of the compoundA. 3,3-dimethyl -1- hydroxycyclohexaneB. 1,1 - dimethyl-3-cyclohexanolC. 3,3-dimethyl-1- cyclohexanolD. 1,1 - dimethyl -3- hydroxycyclohexane
Answer» Correct Answer - C

Discussion

403.	The functional group present in anisole isA. ketoneB. aldehydeC. amineD. ether
Answer» Correct Answer - D

Discussion

404.	Which of the following exhibit electromeric effect ?A. AlkanesB. AldehydesC. Alkyl halidesD. Alkyl amines
Answer» Correct Answer - B

Discussion

405.	The correct IUPAC name `CH_(3)-underset(CH_(3))underset(\|)(C)=underset(C_(2)H_(5))underset(\|)(C)-CH_(3)`A. 1,2 -diethyl buteneB. 2 - ethyl -3- methyl penteneC. 3 , 4 - dimethyl hex -3- eneD. 2 , 3 - dimethyl pent -2- ene
Answer» Correct Answer - D

Discussion

406.	The structure of isoprene isA. `CH_(3)-CH=C=CH_(2)`B. `CH_(2)=overset(CH_(3))overset(\|)(C)-CH=CH_(2)`C. `HC-=C-overset(CH_(3))overset(\|)(C)=CH_(2)`D. `CH_(2)=overset(CH_(3))overset(\|)(C)-CH_(2)-CH=CH_(2)`
Answer» Correct Answer - B

Discussion

407.	Which of the following species is not electrophilic in natureA. `overset(o+)(C)l`B. `BH_(3)`C. `H_(3)overset(o+)(O)`D. `overset(o+)(N)O_(2)`
Answer» Correct Answer - C `Cl^(+)`, BH_(3), overset(o+)(N)O_(2)` are electron deficient.

Discussion

408.	Which will be MOST stable resonationg structure?(A) \(CH_2=CH-\overset\oplus CH-\overset\ominus CH-O-CH_3\)(B) \(\overset\ominus CH_2-\overset\oplus CH-CH=CH-OCH_3\)(C) \(\overset\ominus CH_2-CH=CH-CH=\overset\oplus O-CH_3\)(D) \(CH_2=CH-\overset\ominus CH-CH=\overset\oplus O-CH_3\)
Answer» The structure having opposite charges on adjacent atoms are stable. structure having maximum number of covalent bonds is most stable. -OCH₃ exerts -I and +M effect. +M effect of -OCH₃ predominant over -I effect of -OCH₃ and Also structure having complete octet are more state. In structure (iv) has complete octet and adjacent opposite charge. but in structure (i) has incomplete octet and -OCH₃ group distablized adjacent anion. Therefore, structure (D) will be more stable resonating structure. Correct Answer - D

408.

Which will be MOST stable resonationg structure?(A) \(CH_2=CH-\overset\oplus CH-\overset\ominus CH-O-CH_3\)(B) \(\overset\ominus CH_2-\overset\oplus CH-CH=CH-OCH_3\)(C) \(\overset\ominus CH_2-CH=CH-CH=\overset\oplus O-CH_3\)(D) \(CH_2=CH-\overset\ominus CH-CH=\overset\oplus O-CH_3\)

Answer»

The structure having opposite charges on adjacent atoms are stable. structure having maximum number of covalent bonds is most stable.

-OCH₃ exerts -I and +M effect. +M effect of -OCH₃ predominant over -I effect of -OCH₃

and Also structure having complete octet are more state. In structure (iv) has complete octet and adjacent opposite charge. but in structure (i) has incomplete octet and -OCH₃ group distablized adjacent anion.

Therefore, structure (D) will be more stable resonating structure.

Correct Answer - D

Discussion

409.	Point out the incorrect statement about resonance.A. Resonance structure should have equal energy.B. In resonance structures, the constituent atom should be in the same position.C. In resonance structure there should be the same number of electron pairs.D. Resonance structure should differ only in the location of electrons around the constituent atoms.
Answer» Correct Answer - A

Discussion

410.	Which one of the following is most reactive towards electrophilic reagent ?A. B. C. D.
Answer» Correct Answer - C `+R` effect of `OH gt OCH_(3)`.

Discussion

411.	Resonationg structures of molecules have :A. identical bondingB. different bondingC. identical arrangement of atoms and nearly same energiesD. the different number of paired and unpaired electrons
Answer» Correct Answer - C

Discussion

412.	I.U.P.A.C name of ester isA. Alkoxy alkaneB. Alkyl alkanoateC. Alkanoyl halideD. Alkanoic anhydride
Answer» Correct Answer - B

Discussion

413.	The only correct combination for benzyl cation is -A. (P) (ii), (II)B. (R) (iv) (IV)C. (S) (iv) (IV)D. Q (i) (II)
Answer» Correct Answer - C

Discussion

414.	4 - methyl penta-1, 2- diene isA. `CH_(2)=CH(CH_(2))_(2)CH_(3)`B. `CH_(2)=CHCH(CH_(3))CH_(2)CH_(3)`C. `CH_(3)CH=C(CH_(3))CH=CH_(2)`D. `CH_(2)=C=CH-CH(CH_(3))_(2)`
Answer» Correct Answer - D

Discussion

415.	Carbocations may be stabilised by :A. `pi`-bonds only at phenylic positionB. `pi`-bonds only at phenylic positionC. `pi`-bonds at allylic and benzylic position alsoD. `-I` effect
Answer» Correct Answer - C Allylic and benzylic are stabuilised by resonance.

Discussion

416.	Consider the following benzyl alcohol : Correct order of their `K_(b)` value is :A. `IIIgtIVgtIIgtI`B. `IIIgtIgtIVgtII`C. `IltIIltIIIltIV`D. `IVgtIIgtIgtIII`
Answer» Correct Answer - B

Discussion

417.	`3-`methyl pent`-1,3-`diene isA. `CH_(2) = CH(CH_(2))_(2)CH_(3)`B. `CH_(2)=CHCH(CH_(3))CH_(2)CH_(3)`C. `CH_(3)CH=C(CH_(3))CH=CH_(2)`D. `CH_(3)=C=CH(CH_(3))_(2)`
Answer» Correct Answer - C

Discussion

418.	Among the following compounds, the strongest acid is :A. `CH-=CH`B. `C_(6)H_(6)`C. `C_(2)H_(6)`D. `CH_(3)OH`
Answer» Correct Answer - D `CH_(3)OHhArrCH_(3)overset(Ɵ)O+H^(o+)` Since ,-ive charge is on electronegative oxygen. So, `CH_(3)OH` is most acidic.

Discussion

419.	Which of the following belongs to `+I` group ?A. `-OH`B. `-OCH_(3)`C. `-COOH`D. `-CH_(3)`
Answer» Correct Answer - D `-CH_(3)` is electron donating group.

Discussion

420.	Give the correct order of increasing acidity of the following compounds. A. `IIltIltIVltIII`B. `IVltIIltIltIII`C. `IltIIltIVltIII`D. `IVltIltIIltIII`
Answer» Correct Answer - B Carboxyllic acids are more acidic than phenol and alcohols.

Discussion

421.	The most stable diene is :A. B. C. D.
Answer» Correct Answer - A All double bonds are trans to each other, no resonance in (d).

Discussion

422.	Which of following is the strongest `-I` group ?A. `-N^(+)(CH_(3))_(3)`B. `-^(+)NH_(3)`C. `-^(+)S(CH_(3))_(2)`D. `-F`
Answer» Correct Answer - A

Discussion

423.	Which of the following is the strongest `-I` group :A. `-overset(+)N(CH_(3))_(3)`B. `-overset(+)NH_(3)`C. `-overset(+)S(CH_(3))_(2)`D. `-F`
Answer» Correct Answer - A

Discussion

424.	Shifting of electron of a multiple bond under the influence of a reagent is called :A. I-effectB. M-effectC. E-effectD. T-effect
Answer» Correct Answer - C

Discussion

425.	Acylium cation has two resonating sturctures (I) and (II), `R-underset(I)overset(o+)C=overset(* *)O:harrR-underset(II)C-=overset(o+)O:` Which statement is correct of (I) and (II)?A. (I) is more stable then (II)B. Stability of (II) is more than (I)C. Both have same stabilityD. None of these
Answer» Correct Answer - B All atoms have complete octet structure in (II).

Discussion

426.	Which of the following is not correct ?A. A sigma bond is weaker than `pi` bondB. A sigma bond is stronger than `pi` bondC. A double bond is stronger than a single bondD. A double bond is shorter than a single bond
Answer» Correct Answer - A

Discussion

427.	The length of the carbon-carbon single bond of the compounds (I)`CH_(2)=CH-C-=CH` (II) `CH-=C-C-=CH` (III) `CH_(3)-CH=CH_(2)` (IV) `CH_(2)=CH-CH=CH_(2)`A. `IIIgtIIgtIgtIV`B. `IgtIIIgtIIgtIV`C. `IIIgtIVgtIgtII`D. `IIgtIVgtIgtIII`
Answer» Correct Answer - C

Discussion

428.	Which of the following is strongest `-m` groupA. `-SO_(3)H`B. `-COOH`C. `-NO_(2)`D. `-C-=N`
Answer» Correct Answer - C

Discussion

429.	Which of the following involeves no displacement or shifting of electrons ?A. Zeeman effectB. Inductive effectC. ResonanceD. Electromeric effect
Answer» Correct Answer - A

Discussion

430.	Consider the following three amines, (1) `CH_(3)CH_(2)-overset(* )NH_(2)` (2)`CH_(2)=CH-overset( *)NH_(2)` Arrange C-N bond length of these compounds in decreasing order :A. `1gt2gt3`B. `1gt3gt2`C. `3gt2gt1`D. `2gt3gt1`
Answer» Correct Answer - A No resonance in (I). Due to resonance in (II) (-) bond get converted into (=) bond. More resonance in (III).

Discussion

431.	Which of the following pairs of structure are resonance structure? A. 1 and 4B. 2 and 3C. 1 and 2D. all of these
Answer» Correct Answer - C 3 and 4 are tautomeric in sturcture.

Discussion

432.	Select the correct statement about the following reaction A. it can proceed via `S_(N)` 2 mechanismB. configuration about chiral carbon is retainedC. a racemic mixture is formedD. reaction is stereospecific
Answer» Correct Answer - A The reaction can proceed through `S_(N)2` mechanism and it is stereospecific A reaction is stereospecific when a particular stereoissomeric form of the starting material reacts in such a way that it gives a stereoisomeric form of the product.

Discussion

433.	Arrange the following in increasing order of acidic strength I. `H_(2)SO_(4)` II. `(CH_(3))_(3)CH(SH)` III. `CH_(3)CH_(2)^(+)OH_(2)` IV. `CH_(3)CH_(2)CH_(3)`A. `IV lt II lt I lt III`B. `IV lt II lt III lt I`C. `IV lt I lt II lt III`D. `IV lt III lt II lt I`
Answer» Correct Answer - A Acidic strength depends upon the tendency of a `molecule_(+)` to give a proton. Amond the given `CH_(3)CH_(2)OH_(2)` readily gives a proton so it is highly acidic `CH_(3)CH_(2)CH_(3)` has the least tendency to lose a proton, so its acidic strength is least among the given. thus the correct order of acidic strength is `IV lt II lt I lt III`

Discussion

434.	The major product obtained when `(Br_2)/(Fe)` is treated withA. B. C. D.
Answer» Correct Answer - A The phenyl ring having `H-N lt` group is activated while another one is deactivated due to `-underset(O)underset(\|\|)(C)-`, so electrophilic aromatic bromination will occur at para position with respect to `H - N lt` group inactivated ring.

Discussion

435.	The number of `pi` electrons present in phenanthreceneA. 10B. 14C. 12D. 16
Answer» Correct Answer - B

Discussion

436.	The IUPAC name of isA. but - 2 - ene - 2,3- diolB. pent - 2 - ene -2, 3- diolC. 2 - methyl but - 2 ene - 2,3 -diolD. hex - 2- ene -2, 3 -diol
Answer» Correct Answer - B

Discussion

437.	The IUPAC name of the given structure A. 3 - cyano - 2 - carboxy benzaldehydeB. 2 - cyano - 6 - formyl benzoic acidC. 6 - cyano - 2 formyl benzoic acidD. 2 - formyl - 6 - cyano benzoic acid
Answer» Correct Answer - B

Discussion

438.	The structure of spiro [3.3] heptane isA. B. C. D.
Answer» Correct Answer - D

Discussion

439.	IUPAC name of the compound is `{:(CH_(3)-CH=C-CH_(3)),(" \|"),(" "CH_(2)-CH_(3)):}`A. 2-ethyl-2-buteneB. 3-ethyl-2-buteneC. 3-methyl-3-penteneD. 3-methyl-2-pentene
Answer» Correct Answer - D

Discussion

440.	IUPAC name of the following compound is A. 3-methyl cyclohex-1-eneB. 1- methyl cyclohex-2-eneC. 6-methyl cyclohexeneD. 1-methyl cyclohex-5-ene
Answer» Correct Answer - A

Discussion

441.	The systematic name of `CH_(3)-CHBr - CH_(2)OH` isA. 3-hydroxy - 2-bromopropaneB. 2-bromopropanol-1C. 2-bromo-3-propanolD. 3-hydroxy isopropyl bromide
Answer» Correct Answer - B

Discussion

442.	What is the IUPAC name of the following A. 6 - hydroxy cyclohex - 2 - ene - 1 - alB. 4 - hydroxy cyclohex - 1 - ene - 3 - alC. 2 - hydroxy cyclohex - 5 - ene carbaldehydeD. 1 - formyl cyclohex - 5 - enal
Answer» Correct Answer - C ANSWER -: C) 2 - hydroxy cyclohex - 5 - ene carbaldehyde PRIORITY ORDER-: CHO > R-OH > ALKENE

442.

What is the IUPAC name of the following A. 6 - hydroxy cyclohex - 2 - ene - 1 - alB. 4 - hydroxy cyclohex - 1 - ene - 3 - alC. 2 - hydroxy cyclohex - 5 - ene carbaldehydeD. 1 - formyl cyclohex - 5 - enal

Answer» Correct Answer - C

ANSWER -: C) 2 - hydroxy cyclohex - 5 - ene carbaldehyde

PRIORITY ORDER-:

CHO > R-OH > ALKENE

Discussion

443.	Which of the following compounds have electron deficiency at ortho and para positions?A. B. C. D.
Answer» Correct Answer - B::C::D `-NO_(2),-overset(O)overset(\|\|)C-NH_(2),SO_(3)H` are electron withdrawing group

Discussion

444.	In which of the following molecules both phenyl rings are coplanar?A. B. C. D.
Answer» Correct Answer - A::B::D c is nonplanar because of stearic hindrance at ortho position.

Discussion

445.	Find out correct statement regarding resonance energy :A. It is equal energy of resonance hybridB. It is equal to the difference in enregies of the most stable canonical structure and resonance hybridC. It is enerhy released by the moleculeD. It is rqual to the energy of least stable canonical structure
Answer» Correct Answer - B::C

Discussion

446.	Which of the following would produce effervesence with sodium bicarbonate ?A. B. C. D. All of these
Answer» Correct Answer - D All acids which are stronger than carbonic acid will produces effervesence with sodium bicarbonate

Discussion

447.	Select correct statement from the following:A. B. C. `HC-=CH` is more acidic than `NH_(3)`D.
Answer» Correct Answer - C Self explanatory.

Discussion

448.	Correct order of acidic strength : A. `(iv) gt (i) gt (ii) gt (iii)`B. `(iv) gt (iii) gt (ii) gt (i)`C. `(iv) gt(ii) gt (iii) gt (i)`D. `(ii) gt (iv) gt (i) gt (iii)`
Answer» Correct Answer - C An acid with weaker conjugatr base in stronger.

Discussion

449.	Which of the following is incorrect about the given molecules A. The correct order of basic strength `(K_(b))` is `a gt b gt c`B. The correct order of C-N bond length is `:a gt b gt c`C. The correct C=C bond length order is `a gt b gt c`D. The correct `pK_(b)` order is : `c gt b gt a`
Answer» Correct Answer - C The polarity of N-H bond will be maximum on the N-atom which is most electron deficient.

Discussion

450.	Arrange the following compounds in order of decreasing acidity : A. `(i) gt (ii) gt (iii) gt(iv)`B. `(iii) gt (i) gt (ii) gt (iv)`C. `(iv) gt (iii) gt (i) gt (ii)`D. `(ii) gt (iv) gt(i) gt(iii)`
Answer» Correct Answer - B Electron withdrawing group increase acidic strength and electron relasing group decrease acidic strength.

Discussion

Explore topic-wise InterviewSolutions in .

In electrophilic substitution reaction nitrobenzene isA. Meta-directingB. Ortho-directingC. Para-directingD. Not reactive and does not undergo any substitution

The IUPAC name of the compoundA. 3,3-dimethyl -1- hydroxycyclohexaneB. 1,1 - dimethyl-3-cyclohexanolC. 3,3-dimethyl-1- cyclohexanolD. 1,1 - dimethyl -3- hydroxycyclohexane

The functional group present in anisole isA. ketoneB. aldehydeC. amineD. ether

Which of the following exhibit electromeric effect ?A. AlkanesB. AldehydesC. Alkyl halidesD. Alkyl amines

The correct IUPAC name `CH_(3)-underset(CH_(3))underset(|)(C)=underset(C_(2)H_(5))underset(|)(C)-CH_(3)`A. 1,2 -diethyl buteneB. 2 - ethyl -3- methyl penteneC. 3 , 4 - dimethyl hex -3- eneD. 2 , 3 - dimethyl pent -2- ene

The structure of isoprene isA. `CH_(3)-CH=C=CH_(2)`B. `CH_(2)=overset(CH_(3))overset(|)(C)-CH=CH_(2)`C. `HC-=C-overset(CH_(3))overset(|)(C)=CH_(2)`D. `CH_(2)=overset(CH_(3))overset(|)(C)-CH_(2)-CH=CH_(2)`

Which of the following species is not electrophilic in natureA. `overset(o+)(C)l`B. `BH_(3)`C. `H_(3)overset(o+)(O)`D. `overset(o+)(N)O_(2)`

Which will be MOST stable resonationg structure?(A) \(CH_2=CH-\overset\oplus CH-\overset\ominus CH-O-CH_3\)(B) \(\overset\ominus CH_2-\overset\oplus CH-CH=CH-OCH_3\)(C) \(\overset\ominus CH_2-CH=CH-CH=\overset\oplus O-CH_3\)(D) \(CH_2=CH-\overset\ominus CH-CH=\overset\oplus O-CH_3\)

Which one of the following is most reactive towards electrophilic reagent ?A. B. C. D.

Resonationg structures of molecules have :A. identical bondingB. different bondingC. identical arrangement of atoms and nearly same energiesD. the different number of paired and unpaired electrons

I.U.P.A.C name of ester isA. Alkoxy alkaneB. Alkyl alkanoateC. Alkanoyl halideD. Alkanoic anhydride

The only correct combination for benzyl cation is -A. (P) (ii), (II)B. (R) (iv) (IV)C. (S) (iv) (IV)D. Q (i) (II)

4 - methyl penta-1, 2- diene isA. `CH_(2)=CH(CH_(2))_(2)CH_(3)`B. `CH_(2)=CHCH(CH_(3))CH_(2)CH_(3)`C. `CH_(3)CH=C(CH_(3))CH=CH_(2)`D. `CH_(2)=C=CH-CH(CH_(3))_(2)`

Carbocations may be stabilised by :A. `pi`-bonds only at phenylic positionB. `pi`-bonds only at phenylic positionC. `pi`-bonds at allylic and benzylic position alsoD. `-I` effect

Consider the following benzyl alcohol : Correct order of their `K_(b)` value is :A. `IIIgtIVgtIIgtI`B. `IIIgtIgtIVgtII`C. `IltIIltIIIltIV`D. `IVgtIIgtIgtIII`

`3-`methyl pent`-1,3-`diene isA. `CH_(2) = CH(CH_(2))_(2)CH_(3)`B. `CH_(2)=CHCH(CH_(3))CH_(2)CH_(3)`C. `CH_(3)CH=C(CH_(3))CH=CH_(2)`D. `CH_(3)=C=CH(CH_(3))_(2)`

Among the following compounds, the strongest acid is :A. `CH-=CH`B. `C_(6)H_(6)`C. `C_(2)H_(6)`D. `CH_(3)OH`

Which of the following belongs to `+I` group ?A. `-OH`B. `-OCH_(3)`C. `-COOH`D. `-CH_(3)`

Give the correct order of increasing acidity of the following compounds. A. `IIltIltIVltIII`B. `IVltIIltIltIII`C. `IltIIltIVltIII`D. `IVltIltIIltIII`

The most stable diene is :A. B. C. D.

Which of following is the strongest `-I` group ?A. `-N^(+)(CH_(3))_(3)`B. `-^(+)NH_(3)`C. `-^(+)S(CH_(3))_(2)`D. `-F`

Which of the following is the strongest `-I` group :A. `-overset(+)N(CH_(3))_(3)`B. `-overset(+)NH_(3)`C. `-overset(+)S(CH_(3))_(2)`D. `-F`

Shifting of electron of a multiple bond under the influence of a reagent is called :A. I-effectB. M-effectC. E-effectD. T-effect

Acylium cation has two resonating sturctures (I) and (II), `R-underset(I)overset(o+)C=overset(* *)O:harrR-underset(II)C-=overset(o+)O:` Which statement is correct of (I) and (II)?A. (I) is more stable then (II)B. Stability of (II) is more than (I)C. Both have same stabilityD. None of these

Which of the following is not correct ?A. A sigma bond is weaker than `pi` bondB. A sigma bond is stronger than `pi` bondC. A double bond is stronger than a single bondD. A double bond is shorter than a single bond

The length of the carbon-carbon single bond of the compounds (I)`CH_(2)=CH-C-=CH` (II) `CH-=C-C-=CH` (III) `CH_(3)-CH=CH_(2)` (IV) `CH_(2)=CH-CH=CH_(2)`A. `IIIgtIIgtIgtIV`B. `IgtIIIgtIIgtIV`C. `IIIgtIVgtIgtII`D. `IIgtIVgtIgtIII`

Which of the following is strongest `-m` groupA. `-SO_(3)H`B. `-COOH`C. `-NO_(2)`D. `-C-=N`

Which of the following involeves no displacement or shifting of electrons ?A. Zeeman effectB. Inductive effectC. ResonanceD. Electromeric effect

Consider the following three amines, (1) `CH_(3)CH_(2)-overset(* *)NH_(2)` (2)`CH_(2)=CH-overset(* *)NH_(2)` Arrange C-N bond length of these compounds in decreasing order :A. `1gt2gt3`B. `1gt3gt2`C. `3gt2gt1`D. `2gt3gt1`

Which of the following pairs of structure are resonance structure? A. 1 and 4B. 2 and 3C. 1 and 2D. all of these

Select the correct statement about the following reaction A. it can proceed via `S_(N)` 2 mechanismB. configuration about chiral carbon is retainedC. a racemic mixture is formedD. reaction is stereospecific

Arrange the following in increasing order of acidic strength I. `H_(2)SO_(4)` II. `(CH_(3))_(3)CH(SH)` III. `CH_(3)CH_(2)^(+)OH_(2)` IV. `CH_(3)CH_(2)CH_(3)`A. `IV lt II lt I lt III`B. `IV lt II lt III lt I`C. `IV lt I lt II lt III`D. `IV lt III lt II lt I`

The major product obtained when `(Br_2)/(Fe)` is treated withA. B. C. D.

The number of `pi` electrons present in phenanthreceneA. 10B. 14C. 12D. 16

The IUPAC name of isA. but - 2 - ene - 2,3- diolB. pent - 2 - ene -2, 3- diolC. 2 - methyl but - 2 ene - 2,3 -diolD. hex - 2- ene -2, 3 -diol

The IUPAC name of the given structure A. 3 - cyano - 2 - carboxy benzaldehydeB. 2 - cyano - 6 - formyl benzoic acidC. 6 - cyano - 2 formyl benzoic acidD. 2 - formyl - 6 - cyano benzoic acid

The structure of spiro [3.3] heptane isA. B. C. D.

IUPAC name of the compound is `{:(CH_(3)-CH=C-CH_(3)),(" |"),(" "CH_(2)-CH_(3)):}`A. 2-ethyl-2-buteneB. 3-ethyl-2-buteneC. 3-methyl-3-penteneD. 3-methyl-2-pentene

IUPAC name of the following compound is A. 3-methyl cyclohex-1-eneB. 1- methyl cyclohex-2-eneC. 6-methyl cyclohexeneD. 1-methyl cyclohex-5-ene

The systematic name of `CH_(3)-CHBr - CH_(2)OH` isA. 3-hydroxy - 2-bromopropaneB. 2-bromopropanol-1C. 2-bromo-3-propanolD. 3-hydroxy isopropyl bromide

What is the IUPAC name of the following A. 6 - hydroxy cyclohex - 2 - ene - 1 - alB. 4 - hydroxy cyclohex - 1 - ene - 3 - alC. 2 - hydroxy cyclohex - 5 - ene carbaldehydeD. 1 - formyl cyclohex - 5 - enal

Which of the following compounds have electron deficiency at ortho and para positions?A. B. C. D.

In which of the following molecules both phenyl rings are coplanar?A. B. C. D.

Which of the following would produce effervesence with sodium bicarbonate ?A. B. C. D. All of these

Select correct statement from the following:A. B. C. `HC-=CH` is more acidic than `NH_(3)`D.

Correct order of acidic strength : A. `(iv) gt (i) gt (ii) gt (iii)`B. `(iv) gt (iii) gt (ii) gt (i)`C. `(iv) gt(ii) gt (iii) gt (i)`D. `(ii) gt (iv) gt (i) gt (iii)`

Which of the following is incorrect about the given molecules A. The correct order of basic strength `(K_(b))` is `a gt b gt c`B. The correct order of C-N bond length is `:a gt b gt c`C. The correct C=C bond length order is `a gt b gt c`D. The correct `pK_(b)` order is : `c gt b gt a`

Arrange the following compounds in order of decreasing acidity : A. `(i) gt (ii) gt (iii) gt(iv)`B. `(iii) gt (i) gt (ii) gt (iv)`C. `(iv) gt (iii) gt (i) gt (ii)`D. `(ii) gt (iv) gt(i) gt(iii)`

Consider the following three amines, (1) `CH_(3)CH_(2)-overset(* )NH_(2)` (2)`CH_(2)=CH-overset( *)NH_(2)` Arrange C-N bond length of these compounds in decreasing order :A. `1gt2gt3`B. `1gt3gt2`C. `3gt2gt1`D. `2gt3gt1`