Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Identify products A and B in the following reaction

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ANSWER :A
Discussion
2.

Identify Pyridinium chlorochromate from the following:

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ANSWER :A
Discussion
3.

Identify product C in the following reaction sequence : CH_(3)overset(CH_(3))overset("|")underset(CH_(3))underset("|")"C "-CH_(2)CH_(2)OH overset(K_(2)Cr_(2)O_(2):H(2)SO_(4))underset(H_(2)O," heat ")rarr A overset(SOCl_(2))rarr B overset((CH_(3))_(2)NH)underset("(2 mol)")rarr C overset(overset("1. "LiAlH_(4))("diethyl ether"))underset("2. "H_(2)O)rarrD

Answer»

`CH_(3)overset(CH_(3))overset("|")underset(CH_(3))underset("|")"CC"H_(2)C=N`
`CH_(3)overset(CH_(3))overset("|")underset(CH_(3))underset("|")"CH"H_(2)CH_(2)N(CH_(3))_(2)`
`{:(""CH_(3)" N"(CH_(3))_(2)),("||"),(CH_(3)C CH_(2)CHN(CH_(3))_(2)),("|"),(""CH_(3)):}`
`{:(""CH_(3)),("|"),(CH_(3)C CH_(2)CHN(CH_(3))_(2)),("||"),(""CH_(3)"OH"):}`

ANSWER :B
Discussion
4.

Identify Product (X) :

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ANSWER :D
Discussion
5.

Identify product D in the following reaction sequence :

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Solution :`(CH_(3))_(3)underset((C))"CCH"_(2)OVERSET(O)overset(||)(CN)(CH_(3))_(2)overset("LiAIH"_(4),"ETHER")underset(H_(2)O)(rarr) (CH_(3))_(3)underset((D))("CCH"_(2))CH_(2)N(CH_(3))_(2)`
Discussion
6.

Identify product (A) and write its structure. Ph - underset(Ph)underset(|)overset(Ph)overset(|)(CH) underset(AlCl_(3))overset(H^(+))rarr

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SOLUTION :INTRAMOLECULAR Friedel-Craft
Discussion
7.

Identify P,Q,R and S in the following conversions: CH_(3)OHoverset(PCl_(5))(to)Punderset("Heat")overset(AlcKCN)(to)Qoverset(LiAlH_(4))(to) Runderset(0^(@)C)overset(HNO_(2))(to)S

Answer»

Solution :`P-CH_(3)Cl`
`Q-CH_(3)CN`
`R-CH_(3)CH_(2)NH_(2)`
`S-CH_(3)CH_(2)OH`
Discussion
8.

Identify pair of neutral co-ordination entity amongst the following (P)[CoCl_(3)(NH_(3))_(3)]""(Q) [Ni(CO)_(4)] (R )[PtCl_(2)(NH_(3))_(2)]""(S)K_(4)[Fe(CN)_(6)] (T)[Co(NH_(3))_(6)]Cl_(3)

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P and T
P and Q
Q and R
S and T

Answer :B::C
Discussion
9.

Identify P_(11)

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`CH_(4)`
`C_(2)H_(6)`
`C_(3)H_(8)`
`C_(4)H_(10)`

Solution :
Discussion
10.

Identify P in the following series of reactions (AAK_MCP_35_NEET_CHM_E35_023_Q01)

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`(AAK_MCP_35_NEET_CHE_E35_023_A01)`

ANSWER :D
Discussion
11.

Identify number of compound from following. Which liberate CO_(2) on reaction with NaHCO_(3).

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SOLUTION :
Discussion
12.

Identify 'O' in the following sequence of reaction :

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ANSWER :B
Discussion
13.

Identify number of reactions that can give nucleophilic aromatic substitution products.

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SOLUTION :N//A
Discussion
14.

Identify no .of chiral molecules.

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ANSWER :5
Discussion
15.

Identify 'M' in the following sequence of reactions:

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<BR>

Solution :Problem can be solved by using back REACTION. We KNOW,
`R-underset(O)underset(||)C-NH_(2)overset(Br_(2)//NaOH)underset("HOFFMANN degradation reaction")rarr R-NH_(2)`
So, as per the retrosynthesis analysis :
Discussion
16.

Identify incorrect statements

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Molecularilty is not always an integral quantity
Moelcularity can be defined for ELEMENTARY REACTIONS only
Order of reaction does not exceed three
All

Solution :Molecularity ma 1,2,3, and it is not freactional & (-) ve and zero LIKE order
Discussion
17.

Identify incorrect statement

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Lanthanides donot form oxoions
Lanthanides and actinides are tripositive
Trivalent sulphates of f-block are WATER soluble
Trivalent FLUORIDES of f-block ELEMENTS are water soluble

Solution :Lanthanides can form OXO anions
Discussion
18.

Identify incorrect statement.

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D-glucose,D-msnnose and D-fructose all give same osazone on REACTION with `Ph-NH_NH_(2)`.
D-glucose and D-fructose on catalytic REDUCTION give same products.
Glucose neverreact with `NaHSO_(3)`Schiff's and `Ph-NH-NH_(3)`
Monomerof natural RUBBER is neoprene.

Solution :N//A
Discussion
19.

Identify heteroleptic complex having oxidatio number +1 of the central metal atom :

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`[CO(CN)_(4)]^(3-)`
`[PtCl_(3)(C_(2)H_(4))]^(-)`
`[Co(NH_(3))_(4)Cl_(2)]^(+)`
NONE of these

Solution :(a) `[Co(CN)_(4)]^(3-)` is homoleptic
Discussion
20.

Identify giving reasons, the reaction order from each of the following rate constants: (i) k=2.3xx10^(-5)"L mol"^(-1)s^(-1)"" (ii) k=3xx10^(-4)s^(-1)

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Solution :`K=("RATE")/([A]^(n))=("CONCENTRATION")/("Time")xx(1)/(["concentration"]^(n))`
or `k=(1)/("time" xx ["concentration"]^(n-1))`
For zero order n = 0, `k=(["concentration"])/("time")"or mol L"^(-1)s^(-1)`
For first order n = 1, `k=(1)/("time"0 or s^(-1)`
For second order n = 2, `k=(1)/("time" xx["concentration"])or (1)/(s xx "mol L"^(-1))"or mol"^(-1)LS^(-1)`
THEREFORE for the reaction (i), the order = 2
and for the reaction (ii), the order = 1.
Discussion
21.

Identify giving reasons, the reaction order from each of the following rate constants : (i) k = 2.3 xx 10^(5) L mol^(-1) s^(-1) (ii) k = 3 xx 10^(-4) s^(-1)

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Solution :Unit of RATE CONSTANT for `N^(th)` ORDER
`k = ("mol lit"^(-1))^(1-n) s^(-1)`
(i) `k = 2.3 xx 10^(5)L mol^(-1) s^(-1)`
We will get these units when value of n= 2, or order is (two)
`k = ("mol lit"^(-1))^(1-2) s^(-1)`
`= mol^(-1) "lit sec"^(-1)`
(ii) `k = 3 xx 10^(-4)s^(-1)`
We will get these units when value of n=1, or order is (one)
`k = ("mol lit"^(-1))^(1-1)s^(-1)`
`=s^(-1)`
Discussion
22.

Identify how many "Ore names", "Type of Anion", "Metal(s) present in mineral" are correctly related {:((i),"Magnetite","oxide",Fe),((ii),"calamine","carbonate",Zn),((iii),"Copper Pyrite", "Sulphide",Fe),((iv), "Galena", "sulphide", Hg),((v), "Asbestos", "Silicate", Al),((vi), "Lunar Caustic", "hydroxide", Ag),((vii), "Dolomite", "carbonate", Ca),((viii), "Dolomite", "hydroxide", Mg):}.

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SOLUTION :(i), (II) , (iii), (vii) are the correct combinations
`{:("Magnetite",Fe_(3)O_(4)),("Gibbsite",AL(OH)_(3)),("Copper Pyrite",CuFe_(2)S_(4)),("Galena", Pbs),("Asbestos", CAMG(SiO_3)_(4)),("Lunar Caustic",AgNO_(3)),("Dolomite", MgCO_(3).CaCO_(3)):}`
Discussion
23.

Identify G

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`SiO_(2)`
ZnS
S
FeS

Solution :(A) is `FeSO_(4).7H_(2)O`
`FeSO_(4)+BaCl_(2)tounderset((B))(BaSO_(4)darr)+FeCl_(2)`
`2FeSO_(4)overset(Delta)tounderset((E))(Fe_(2)O_(3))+underset((C))(SO_(2))+underset((D))(SO_(3))`
`Fe_(2)O_(3)+6HCl tounderset((F))(2FeCl_(3))+3H_(2)O`
`2FeCl_(3)+H_(2)Stounderset((H))(2FeCl_(2))+2HCl+underset((G))(S)`
`2FeCl_(3)+SnCl_(2)to 2FeCl_(2)+SnCl_(4)`
`4FeCl_(3)+3K_(4)Fe(CN)_(6)tounderset("Prussian blue")(Fe_(4)[Fe(CN)_(6)]_(3))+12KCl`
Discussion
24.

Identify final product In the following reaction CH_(3)-underset(OH)underset(|)(C)H-COOH overset(Delta)to product

Answer»


`CH_(2)-=CH-COOH`
`CH_(3)-UNDERSET(O)underset(||)(C)-COOH`
`CH_(3)-CH_(2)-OH`

Solution :
Discussion
25.

Identify each of the following glucose derivative. a.A+5HIO_(4)rarr 4HCOOH+2HCHO b.B+3HIO_(4)rarr 2HCOOH+2OHC--COOH

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SOLUTION :a.Proceed REVERSE:

B.
Discussion
26.

Identify, each of the following glucose derivative A+5HlO_(4) to 4HCOOH+2HCHO B+3HlO_(4)to2HCOOH+2OHC-COOH

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SOLUTION :`AtoHOCH_(2)CH(OH)CH(OH)CH(OH)CH(OH)*CH_(2)OH`
`BtoHOOC*CH(OH)*CH(OH)*CH(OH)*CH(OH)*COOH`
Discussion
27.

Identify each of the following as either D- or L- glyceraldehyde.

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(i)-L, (II)D, (III)D
(i)-D, (ii)-L, (iii)-D
(i)-D, (ii)-L, (iii)-L
(i)-L, (ii)-D, (iii)-D

Solution :
Discussion
28.

Identify each of the following alkenes as being either cis or trans.

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SOLUTION :Staggard < SKEW < PARTIALLY ECLIPSED < eclipsed.
Discussion
29.

Identify E and Z form of stilbene ?

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ANSWER :A::B
Discussion
30.

Identify D in the following reaction sequence. C_(2)H_(5)OH overset(PCl_(5))to A overset(AgNO_(2))to Bunderset(Delta)overset(Sn//HCl)to X overset(HNO_(2)) toD

Answer»

Ethyl ALCOHOL
Methyl alcohol
Nitroalkane
Ethane

Solution :`C_(2)H_(5)OH OVERSET(PCI_(5))to C_(2)H_(5)Cl overset(AgNO_(2))to C_(2)H_(5)NO_(2)overset(Sn//HCl)to C_(2)H_(5)OH`
Discussion
31.

Identify disproportionation reaction :

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`CH_(4)+2O_(2)toCO_(2)+2H_(2)O`
`CH_(4)+4Cl_(2)toC Cl_(4)+4HCl`
`2F_(2)+2OH^(-)to2F^(-)+OF_(2)+H_(2)O`
`2NO_(2)+2OH^(-)toNO_(2)^(-)+NO_(3)^(-)+H_(2)O`

Solution :`2NO_(2)+2OH^(-)toNO_(2)^(-)+NO_(3)^(-)+H_(2)O` is a disproportion REACTION because N is both oxidised as WELL as reduced.O.N increases from `+4` (in `NO_(2))` to +3 (in `NO_(2)^(-))`.
Discussion
32.

Identify D

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`AgCI`
`AGF`
`AgBr`
None of these

Solution :`UNDERSET((A))(FeBr_(3))+3AgNO_(3)tounderset((D))(FE(NO_(3))_(3)+3AgBr darr` (light yellow ppt.)
`FeBr_(3)+3H_(2)SO_(4)tounderset((B))(Fe_(2)(SO_(4))_(3)+3Br_(2)`
`FeBr_(3)+3NH_(4)OHtounderset((C))(Fe(OH)_(3) darr)+3NH_(4)Br`
Discussion
33.

Identify D

Answer»

`ZnO`
`FeO`
`Fe_(2)O_(3)`
`CuO`

Solution :(A) is `FeSO_(4).7H_(2)O`
`underset("Light GREEN (A)")(FeSO_(4).7H_(2)O)overset("Gentle HEATING")tounderset("Colourless")(FeSO_(4))+7H_(2)O`
`FeSO_(4)+NO to underset("Brown (C)")(FeSO_(4).NO)`
`FeSO_(4)+NO to overset(Delta)underset((D))(Fe_(2)O_(3))+underset((E))(SO_(2))+underset((F))(SO_(3))`
`2KMnO_(4)+3H_(2)SO_(4)toK_(2)SO_(4)+2MnSO_(4)+3H_(2)O+5[O]`
`SO_(2)+H_(2)O+O to [H_(2)SO_(4)]xx5`
`ulbar(underset("(Pink)")(2KMnO_(4))+2H_(2)O+5SO_(2) underset("(Almost colourless)")(to) K_(2)SO_(4)+2MnSO_(4)+2H_(2)SO_(4)+2H_(2)SO_(4))`
`SO_(3)+H_(2)Oto H_(2)SO_(4)`
`H_(2)SO_(4)+BaCl_(2)toBaSO_(4)darr+2HCl`
Discussion
34.

Identify D

Answer»

PbS
`PbI_(2)`
`PbCrO_(4)`
`Zn(OH)_(2)`

Solution :`UNDERSET(solution)underset(Green)(CrCI_(3)) + 3NH_(4)OH rarr underset("Greensih ppt")(Cr(OH)_(3)DARR)+3NH_(4)CI`
`Na_(2)O_(2) +H_(2)O rarr 2NaOH +[O] XX 3`
`2Cr(OH)_(3) +NaOH +3[O] rarr 2Na_(2)CrO_(4) +5H_(2)O`
`ulbar(2Cr(OH)_(3)+3Na_(2)O_(2)rarrunderset("Yellow solution")(2Na_(2)CrO_(4))+2NaOH+2H_(2)O)`
`underset(Yellow)(2CrO_(4)^(2-))+2H^(o+)rarrunderset("Orange")(2CrO_(7)^(2-))+H_(2)O`
`Cr_(2)O_(7)^(2-) +2OH^(Theta) +2Pb^(2+) rarr underset(("Bright yellow ppt"))(2PbCrO_(4)+H_(2)O)`
Discussion
35.

Identify D .

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SOLUTION :
Discussion
36.

Identify D

Answer»

ZnO
ZnS
FeO
FeS

Solution :Zinc oxide turns yellow on heating and white on cooling. (A) is `ZnO`, which is not soluble in WATER. `ZnO` is called Chinese white, zincite, philosopher's wool.
`ZnO +2HCI rarr underset((B))(ZnCI_(2)) +H_(2)O`
`ZnO +2NaOH rarr underset((C))(Na_(2)ZnO_(2))+H_(2)O`
`ZnO` is AMPHOTERIC.
`underset((B))(ZnCI_(2))+H_(2)S rarr` No ppt.
This is because `ZnS` is precipitated in basic medium with sufficient `[S^(2-)]` concentration.
`underset(("NEUTRAL or basic solution"))(ZnCI_(2)+H_(2)S) OVERSET(NH_(4)OH)rarr underset((D))(ZnSdarr) +2HCI`
Discussion
37.

Identify correct structure of A:

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ANSWER :D
Discussion
38.

Identify correct statement.

Answer»

`C` is a WEAK lewis acid
`B` is a weak lewis base
`C` is a strong acid
`D` REACTS with `NaOH` to produce `C`

Solution :
Discussion
39.

Identify correct set for 4nd pair of compounds ?

Answer»

<P>P C
Q C
P Q
S B

Solution :N//A
Discussion
40.

Identify correct statement (s)

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Ionic compounds has high melting and boiling points.
`CO_(2)`is less polar than `N_(2)O`
ORTHO nitrophenol is more volatile than paranitrophenol.
Ethyly ALCOHOL is more SOLUBLE in WATER than dimethyl ether.

Answer :A::B::C::D
Discussion
41.

Identify correct set for 3nd pair of compounds ?

Answer»

R A B
S A B C
Q R S B C
Q A B C

SOLUTION :N//A
Discussion
42.

Identify correct set for 1nd pair of compounds ?

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<P>S A C P
Q R S D
P Q S B
P Q S D

Solution :N//A
Discussion
43.

Identify correct order of pH of the given solutions at 25^(@)C (I) NH_(4)Cl "" (II) Na_(2)CO_(3) "" (III) K_(2)SO_(4)

Answer»

`I LT II lt III`
`I lt III lt II`
`II lt I lt III`
`II lt III lt I`

Solution :`NH_(4)Cl rarr` salt of S.A/W.B `(pH lt 7)`
`Na_(2)CO_(3) rarr` salt of W.A/S.B `(pH GT 7)`
`K_(2)SO_(4) rarr` salt of S.A/S.B (pH= 7)
Discussion
44.

Identify compounds A,B and C in the following sequence of reactions. (i) C_(6)H_(5)NO_(2)overset(Fe//HCl)(to)Aunderset(273K)overset(HNO_(2))(to)Bunderset(C_(6)H_(3)OH)(to)C (ii) C_(6)H_(5)N_(2)Cloverset(CuCN)(to)A overset(H_(2)"O"//H^(+))(to)Boverset(NH_(3))(to)C (iii) CH_(3)CH_(2)Ioverset(NaCN)(to)Aunderset("Partial hydrolysis")overset(OH^(-))(to)Boverset(NaOH+Br_(2))(to)C (iv). CH_(3)NH_(2)overset(CH_(3)Br)(to)Aoverset(CH_(3)COCl)(to)Boverset(B_(2)H_(6))(to)C (v) C_(6)H_(5)NH_(2) underset("pyridine")((CH_(3)CO)_(2)O)(to)Aunderset(H_(2)SO_(4)//288K)overset(HNO_(3))(to)Boverset(H_(2)O//H^(+))(to)C (vii) CH_(3)CH_(2)NCoverset(HgO)(to)Aoverset(H_(2)O)(to)Bunderset((ii)H_(2)O)overset((i)NaNO_(2)//HCl)(to)C

Answer»

Solution :(i) `C_(6)H_(5)NO_(2)overset(Fe//HCl)(to)Aunderset(273K)overset(HNO_(2))(to)Boverset(C_(6)H_(5)OH)(to)C`
`underset(("Nitrobenzene"))(C_(6)H_(5)NO_(2))overset(Fe//HCl)(to)underset((A))underset(("Aniline""))(C_(6)H_(5)NH_(2)) underset((or)NaNO_(2)//HCl)overset(HNO_(2)//273K)(to)`
(ii) `C_(6)H_(5)N_(2)Cloverset(CuCN)(to)A overset(H_(2)O//H^(+))(to)Boverset(NH_(3))(to)C`
`underset(("Benzenediazonium chloride"))(C_(6)H_(5)N_(2)Cl)overset(CuCN)(to)underset((A))underset(("Cyanobenzene"))(C_(6)H_(5)CN)overset(H_(2)O//H^(+))(to)underset((B))underset(("Benzoic acid"))(C_(6)H_(6)COOH)overset(NH_(3)//Delta)(to)underset((C))underset(("Benzamide"))(C_(6)H_(5)CONH_(2))`
(iii) `CH_(3)CH_(2)Ioverset(NaCN)(to)Aunderset("Partial hydrolysis")overset(OH^(-))(to)Boverset(NaOH+Br_(2))(to)C`
`underset(("Ethyl iodide"))(CH_(3)CH_(2)I)underset(-NaI)overset(NaCN)(to)underset(("Ethyl cyanide"))(CH_(3)CH_(2)CN)underset(("Partial hydrolysis"))overset(OH^(-))(to)underset((B))underset(("Acetamide"))(CH_(3)-CONH_(2)) underset(("Hofmann bromamide REACTION"))overset(NaOH+Br_(2))(to)underset((C))underset(("Methylamine"))(CH_(3)NH_(2))`
(IV)`CH_(3)NH_(2)overset(CH_(3)Br)(to)Aoverset(CH_(3)COCl)(to)B overset(B_(2)H_(6))(to)C`
`underset(("Methyl amine"))(CH_(3)NH_(2))overset(CH_(3)Br)(to) underset((A))underset(("N,N-dimethyl amine"))((CH_(3))_(2)NH)overset(CH_(3)COCl)(to)underset((B)) underset(("N,N-dimethyl acetamide"))((CH_(3))_(2)N-COCH_(3)) overset(B_(2)H_(6))(to) underset(((C)2-"hydroxy ethan amine")) underset(("N,N-dimethyl")) underset(OH)underset(|)((CH_(3))_(2)N-CH)-CH_(3)`
v. `C_(6)H_(5)NH_(2) underset("pyridine")overset((CH_(3)CO)_(2)O)(to)Aunderset(H_(2)SO_(4)//288K)overset(HNO_(3))(to)Boverset(H_(2)"O"//H^(+))(to)C`

vii. `CH_(3)CH_(2)NCoverset(HgO)(to)Aoverset(H_(2)O)(to)Bunderset((ii)H_(2)O)overset((i)NaNO_(2)//HCl)(to)C`
`CH_(3)CH_(2)NCunderset(-Hg_(2)O)overset(2HgO)(to) CH_(3)-underset((A))underset(("Ethylisocyanate"))(-CH_(2)-N=C=)Ooverset(H_(2)O)(to)CH_(3)-underset((B)underset(("Ethylamine"))(CH_(2)-NH_(2))+CO_(2)underset((ii)H_(2)O)overset((i)NaNO_(2)//HCl)(to) underset((C))underset(("Ethanol"))(C_(2)H_(5)OH)`
Discussion
45.

Identify correct set for 2nd pair of compounds ?

Answer»

<P>P Q A B
Q R S B
S D
P R S D

Solution :N//A
Discussion
46.

Identify correct order of reactivity in electrophilic substitution reaction of the following compounds :

Answer»

` gt 2 gt 3gt 4`
`4 gt 3 gt 2 gt 1`
`2 gt 1gt 3 gt 4`
`2 gt 3 gt 1 gt 4`.

SOLUTION :`NO_(2)` and `CL` are electron withdrawing groups but `NO_(2)` is stronger electron withdrawing. Hence nitrobenzene is least reactive. `CH_(3)` GROUP is electron releasing and hence toluene is most reactive. Hence the correct order is :
toluene `gt` BENZENE `gt` chlorobenzene `gt` nitrobenzene.
Discussion
47.

Identify correct order for given property.

Answer»

`C_2H_5NH_2gt(C_2H_5)_2NHgt(C_2H_5)_3N` (basic strength is GAS phase)
`(CH_3)_2NHltC_2H_5NH_2ltC_2H_5OH` (BOILING POINT)
`C_6H_5NH_2ltC_2H_5NH_2lt(C_2H_5)_2NH` (Solubility in `H_2O`)
p-intro aniline `LT` p-toludine `lt` aniline (Basic strength in `H_2O`)

Answer :A
Discussion
48.

Identify compounds A,B and C in the following reactions: (i) (A)overset(Br_(2)//NaOH)(to)(B)overset(HNO_(2))(to)(C)overset("Red"P//I_(2))(to)CH_(2)I (ii) (A)overset(dil.HNO_(3))(to)(B)overset(Sn//HCl)(to)(C)underset("boil")overset(NaNO_(3)+HCl)(to) (iii) (A)overset(Delta)(to)(B)underset(KOH)overset(Br_(2))(to)(C)overset(HNO_(2))(to)C_(2)H_(5)OH (iv) (A)overset(AgCN)(to) (B) overset(Sn//HCl)(to)(C)overset(HNO_(3))(to)CH_(3)-underset(N=O)underset(|)(N)-CH_(3)

Answer»

Solution :(i) `underset((A))(CH_(3)CONH_(2))overset(Br_(2)//NaOH)(to)underset((B))(CH_(3)//NH_(2))overset(HNO_(2))(to) underset((C))(CH_(3)OH)overset("Red"P//I_(2))(to)CH_(3)I`

(iii) `underset((A))(CH_(3)CH_(2)COONH_(4))overset(Delta)(to)underset((B))(CH_(3)CH_(2)CONH_(2))underset(KOH)overset(Br_(2))(to) underset((C))(CH_(3)CH_(2)NH_(2))overset(HNO_(2))(to)underset("ETHANOL")(C_(2)H_(5)OH)`
(iv) `underset((A))(CH_(3)Cl)overset(AgCN)(to)underset((B))(CH_(3)CN)-=underset(4[H])overset(Sn//HCl)(to)underset((C))underset(N-"Methyl methanamine")(CH_(3)NH_CH_(3))overset(HNO_(3))(to)CH_(3)-underset(N-"Methyl-N-nitroso methanamine")underset(N=O)underset(|)(N)-CH_(3)`
Discussion
49.

Identify underlineX and underlineY in the following sequence of reactions . CH_(3) underset(X) (CH)O overset(HNO_(3))(to) underlineX overset(P_(4) O_(10)) underset(Delta)(to) underlineY

Answer»

`X- C_2H_5OH, Y- C_2H_4`
`X- CH_3 CO_2 H, Y - (CH_3CO)_2O`
`X- CH_3 CO_2 H, Y - CH_3 CO_2 CH_3`
`X-C_2H_5OH, Y - CH_3CO_2H`

ANSWER :B
Discussion
50.

Identify compounds A,B and C in the following sequence of reactions. CH_3CH_2NCoverset(HgO)(to)Aoverset(H_2O)(to)B underset((ii)H_4O) overset((i)NaNO_2"/"HCl)(to)C

Answer»

Solution :`CH_(3)CH_(2)NC overset(2HgO)underset(-Hg_(2)O) to underset("Ethylisocynate")(CH_(3)-CH_(2)-N =C) overset(H_(2)O) to underset("ETHYLAMINE") (CH_(3)-CH_(2)-NH_(2)) +CO_(2) overset((i) NaNO_(2)//HCl)underset((ii) H_(2)O) to underset("Ethanol")(C_(2)H_(5)OH)`
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