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.

Complete the following reactions :

Answer»


ANSWER :`(##RES_CHM_ROHR_E01_007_A01##)`
Discussion
2.

Complete the following reaction : i. ii. iii. iv. v. vi vii. viii ix. x.

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Solution : `i.`
`ii.`
`iii.`
`iv.`
`v. `
`vi.`No REACTION. Since the two double bonds are in `S-` TRANS.,it should be `S-` CIS `(` the NECESSARY conditions for Diels `-` Alder reactions are `S-` cis conformation non`-` linearity of DIENES `).`
`vii.`
`viii.`
`ix.` It is an examples of intromolecular Diels `-` Alder reaction `:`

`x.`
Discussion
3.

Complete the following reaction : (i) Isopropyl bromide underset(KOH, Delta)overset("Alcohol")rarr X underset("Peroxide")overset("HBr")rarr Y (ii) n-propyl Alcohol underset(443K)overset("Conc."H_(2)SO_(4))rarr X underset(C)overset(HBr)rarrY (iii) 1-Chloropopane underset(KOH)overset("Ethanol")rarr (B) underset(C Cl_(4))overset(HBr)rarr Y (iv) Ethane underset(hv)overset(Cl_(2))rarr (B) overset("Na, Ether")rarr (C)

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SOLUTION :(i)
Discussion
4.

Complete the following reaction? HNO_(3)overset(P_(4)O_(10),Delta)to?

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Solution :`P_(4)O_(10)` being a STRONG DEHYDRATING agent, ELIMINATES a molecule of `H_(2)O` from TWO molecules of `HNO_(3)` giving dinitrogen pentoxide `((N_(2)O_(5))`.
`4HNO_(3)+P_(4)O_(10)overset(Delta)to2N_(2)O_(5)+4HPO_(3)`
Discussion
5.

Complete the following reactionequation, R_(2)SiCl_(2) + H_(2)O rarr

Answer»

Solution :`UNDERSET("Dialkyldichlorosilane")(Cl-underset(R)underset(|)OVERSET(R)overset(|)(SI)-Cl+2H_(2)O)underset(-2HCl)rarrHO-underset(R)underset(|)overset(R)overset(|)(Si)-OHoverset("POLYMERIZATION")rarrunderset("Silicone")(-underset(R)underset(|)overset(R)overset(|)Si-O-underset(R)underset(|)overset(R)overset(|)(Si)-O-)`
Discussion
6.

Complete the following reaction by identifying X and Y. CH_(3)CH_(2)C -= CH overset(NaNH_(2))to X overset(C_(2)H_(5)Br)toY

Answer»

`X=CH_(3)CH_(2)COONa, Y=CH_(3)CH_(2)CH=CH_(2)`
`X=CH_(3)CH_(2)C-=CN a, Y=CH_(3)CH_(2)C-=C C_(2)H_(5)`
`X=CH_(3)CH_(2)CH_(2)CH_(2)Na,Y=CH_(3)CH_(2)CH_(2)CH_(3)`
`X=CH_(3)CH_(2)CH-=CN a, Y=CH_(3)CH_(2)-underset(C_(2)H_(5))underset(|)(C)H-CH_(3)`

Answer :B
Discussion
7.

Complete the following reaction and identify the products? (a)CH_(3) -CH_(2) - Br overset "(alc. KOH)" to ? (b)CH_(3) - CH_(2) - Br overset"(aq.KOH)" to ?

Answer»

Solution :(a)` UNDERSET ("Bromo ETHANE") (CH_(3)-CH_(2))-Br overset ("aq.KOH") to underset("Ethylene")(CH_(2) =CH_(2)) + KBR + H_(2)O`
(b) `underset("Bromo ethane") (CH_(3) -CH_(2) -Br) overset("aq.KOH") to underset ("Ethanol") (CH_(3) - CH_(2)- OH + KBr)`.
Discussion
8.

Complete the following reaction and identify the product.

Answer»

SOLUTION :
Discussion
9.

Complete the following reaction and identify A, B and C. (a) CH_(3)-overset(CH_(3))overset(|)C=CH_(3)overset(K MnO_(4)|H^(+))toA (b) CH_(3)-CH=CH-CH_(3)overset(K MnO_(4)|H^(+))to Boverset((O))toC

Answer»

SOLUTION :`underset(("2METHYL prop-1-ene"))(CH_(3)-overset(CH_(3))overset(|)C=CH_(2))overset(K MnO_(4)|H^(+))tounderset(("Acetone")A)(CH_(3)-overset(CH_(3))overset(|)C=O)`
(B) `CH_(3)-CH=CH-CH_(3)overset(K MnO_(4)|H^(+))tounderset((B))underset(("Acetaldehyse"))(2CH_(3)CHO)overset((O))tounderset((A))(2CH_(3)C COH`
Discussion
10.

Complete the followingreaction and identify A,B and C (a) CH_(3)-overset(CH_(3))overset(|)C=CH_(2)overset(KMnO_(4)|H^(+))rarrA (b) CH_(3)-CH=CH-CH_(3)overset(KMO_(4)|H^(+))rarrBoverset(O)rarrC

Answer»

SOLUTION :
Discussion
11.

Complete the following reaction, (a) C_6 H_5 COONa underset(Delta)overset(NaOH//CaO)to ?(b) C_6 H_5 OH underset(Delta)overset(Zn)to ?

Answer»

Solution :a. `C_6 H_5 COONa UNDERSET(Delta)OVERSET(NaOH//CaO)to underset("(BEZENE)")(C_6H_6)`
b.` C_6H_5OH underset(Delta)overset(Zn) to underset("(Benzene)")(C_6H_6) + ZnO`
Discussion
12.

Complete the following reaction: a). 4-bromo-2-methylphenol treated with 2-methylpropene and sulphuric acid (b). P-cresol treated with propanoyl chloride and aluminium chloride. c). 2,5-dichlorophenol reacts with chlorine in acetic acid.

Answer»

SOLUTION :
Discussion
13.

Complete the following reaction.

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SOLUTION :`C_(6)H_(6)`
Discussion
14.

Complete the following (i) PbS(s)+H_(2)O_(2)(aq) to(ii) MnO_(4)^(-)(aq)+H_(2)O_(2)(aq)+H^(+)(aq)to CaO_(s)+H_(2)O(g) to(iv) AlCl_(3)(s)+H_(2)O(l) to (v) Ca_(3)N_(2)(s)+H_(2)O(l) to

Answer»

Solution :`(i)PbS(s)+4H_(2)O_(2)(aq) to PbSO_(4)(s)+4H_(2)O(aq)`
(ii) `2MnO_(4)^(-)(aq)+6H^(+)(aq)+5H_(2)O_(2)(aq) to 2MN^(2+)(aq)+8H_(2)O(l)+5O_(2)(g)`
(III) `"" CaO(s)+H_(2)O(g) to Ca(OH)_(2)(s)`
(iv) `"" AlCl_(3)(g)+3H_(2)O(l) to Al(OH)_(3)(s)+3HCl(l)`
(v) `"" Ca_(3)N_(2)(s)+6H_(2)O(l) to 3Ca(OH)_(2)(s)+2NH_(3)(g).`
Discussion
15.

Complete the following (i) H_(2)(g)+MnOo(s) overset("heat")to(ii) CO_(2)(g)+H_(2)(g) underset("catalyst")overset("heat")to (iii) C_(3)H_(8)(g)+3H_(2)O(g) underset("catalyst")overset("heat")to(iv) Zn(s)+NaOH(aq) overset("heat")to

Answer»

Solution :(i) `MmOo_(s)+oH_(2)(g) overset("HEAT")to MM(s)+oH_(2)(l)`
(II) `Co(g)+2H_(2)(g) underset("heat")overset("Co-catalyst")to underset("Methyl alcohol")(CH_(3)OH(l))`
(III) `C_(3)H_(8)(G)+3H_(2)O(g) underset(1270K)overset("Ni-catalyst")to 3CO(g)+7H_(2)(g)`
`Zn(s)+2NaOH(aq) overset("heat")to underset("SOD. zincate")(Na_(2)ZnO_(2)(aq)+H_(2)(g))`
Discussion
16.

Complete the following (i) 2butyne overset("lindlar catalyst")rarr (ii) CH_(2)=CH_(2)overset(I_(2))rarr (iii)underset(Br)underset(|)CH_(2)=CH_(2)overset(zn//c_(2)h_(2)oh)rarr (iv) cac_(2)overset(h_(2)o)rarr

Answer»

SOLUTION :
Discussion
17.

Complete the following: (i) 2-butyne overset(Pd-CacO_(3))to? (ii) CaC_(2)overset(H_(2)O)to?

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Solution : (i) `CH_(3)-C=C-CH_(3)2-`butyne `overset(Pd-CacO_(3))to`
(ii) `CaC_(2)overset(H_(2)O)to HC=CH+Ca(OH)_(2)`
Discussion
18.

Complete the following equations. ZnO+C ---->

Answer»


ANSWER :ZN
Discussion
19.

Complete the following equations. SiO_(2)+4HFto?+2H_(2)O

Answer»


ANSWER :`SiF_(4)`
Discussion
20.

Complete the following equations: (i)PbS_((s)) + H_(2)O_(2(aq)) to (ii)CO_((g)) + 2H_(2(g)) underset"Catalyst"overset"Cobalt"to

Answer»

Solution :(i)When PbS reacts with hydrogen peroxide and formed `PbSO_4` water.
`PbS_((s)) + 4H_2O_(2(AQ)) to PbSO_4 + 4H_2O`
(ii)Methanol is formed by REACTION of carbon monoxide with `H_2` gas in presence of CO catalyst.
`CO_((G))+ 2H_(2(g)) overset"COBALT catalyst"to CH_3OH_((l))`
Discussion
21.

Complete the following equations: (i) Na_(2)O_(2)+2H_(2)O to underline((W))+H_(2)O_(2) (ii) 2KO_(2)+2H_(2)O to underline((X))+underline((Y))+O_(2) (iii) Na_(2)O+CO_(2)to underline((Z))

Answer»

W-4Na, X-`K_(2)O`,Y-`H_(2)O`,`Z-Na_(2)O_(2)`
`W-4Na,X-K_(2)O,Y-H_(2)O_(2),Z-Na_(2)CO_(3)`
`W-4NaOH,X-2KOH,Y-H_(2)O,Z-Na_(2)O_(2)`
`W-2NaOH,X-2KOH,Y-H_(2)O_(2),Z-Na_(2)CO_(3)`

Solution :`Na_(2)O_(2)+2H_(2)Oto UNDERSET((W))(2NaOH)+H_(2)O_(2)`
`2KO_(2)+2H_(2)O to underset((X))(2KOH)+underset((Y))(H_(2)O_(2))+O_(2)`
`Na_(2)O+CO_(2) to underset((Z))(Na_(2)CO_(3))`
Discussion
22.

Complete the following equations : (i) 2C_(^)H_(5)CI+Naoverset("Ether")to (ii) C_(6)H_(6)+CI_(2)overset("FeCI"_(3))to (iii) C_(6)H_(6)+H_(2)C=CH_(2)overset(AICI_(3),HCI)underset("370K,"Pressure")to (iv) C_(6)H_(6)+CO+HCIoverset("air/"V_(2)O_(5))to (v) C_(6)H_(6)+CO+HCIoverset(AICI_(3))to (vi) 3C_(6)H_(6)+CHCI_(3)overset(AICI_(3))to (vii) C_(6)H_(6)+CH_(3)CH_(2)CH_(2)CIoverset(AICI_(3))to (viii) C_(6)H_(6)+(CH_(3))_(3)C-CH_(2)Broverset(AICI_(3))to (xi) C_(6)H_(6)+(CH_(3))_(2)CHCH_(2)OHoverset(H_(2)SO_(4))to (x) C_(6)H_(6)+CH_(3)CH=CH_(2)overset(H_(3)PO_(4))underset("523K, Pressure")to

Answer»


ANSWER :`(##GRB_ORG_CHM_P1_C08_E01_002_S01##)`
`(##GRB_ORG_CHM_P1_C08_E01_002_S02##)`
Discussion
23.

Complete the following equations. HCOOHunderset(Conc.H_(2)SO_(4))overset(373K)(to)?+H_(2)O

Answer»


ANSWER :CO
Discussion
24.

Complete the following equations and identify the products A,B and C. BeCl_(2)+N_(2)O_(4)overset("ethylacetate")(to)Aoverset(50^(@)C,"Vacuum")(to)Boverset(120^(@)C)(to)C

Answer»

`BeCl_(2).N_(2)O,Be(NO_(3))_(2),Be(NO_(3))_(2),Be(NO_(2))_(2)`
`Be(NO_(3))_(2),Be(NO_(2))_(2),BeO`
`Be(NO_(3))_(2).2NO_(2)O_(4),Be(NO_(3))_(2),Be_(4)O(NO_(3))_(6)`
`BeO,Be(NO_(2))_(2),Be(NO_(3))_(2)`

Solution :`BeCl_(2)+4N_(2)O_(4)overset("Ethylacetate")(to)underset((A))(Be(NO_(3))_(2))*2N_(2)O_(4)O_(4)+2NOCl`
`Be(NO_(3))_(2)*2N_(2)O_(4)overset(50^(@)C"vaccume")(to)(to)underset((B)(Be(NO_(3))_(2))+2N_(2)O_(4)uarr`
`4Be(NO_(3))_(2)overset(120^(@)C)underset("Basic BERYLLIUM Nitrate")underset((C ))(Be_(4)O(NO_(3))_(6)+N_(2)O_(4)+1//2O_(2)`
Discussion
25.

Complete the following equation : B_(2)H_(6)+3O_(2)overset("Burn")(to)……………+………….

Answer»


Answer :`B_(2)H_(6)+3O_(2)OVERSET("Burn")(to)B_(2)O_(2)+3H_(2)O`
Discussion
26.

Complete the following equation 3CH=CHunderset("Iron tube 873K")overset("red hot")(to)…………

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SOLUTION :
Discussion
27.

Complete the following equation 2Fe^(+2)+2H^(+)+2H_(2)O_(2)to………….+H_(2)O

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Answer :`2FE^(+2)+2H^(+)+H_(2)O_(2)to2Fe^(+3)+2H_(2)O`
Discussion
28.

Complete the following chemical reactions: (i) PbS(s) + H_(2)O_(2) (aq) to(ii) MnO_(4)^(-) (aq0 + H_(2)O_(2)(aq) to(iii) CaO (s) + H_(2)O (g) to(iv) AlCl_(3) (g) + H_(2)O(l) to(v) Ca_(3)N_(2)(s) + H_(2)O(l) to Classify the above into (a) hydrolysis, (b) redox and (c) hydration reactions.

Answer»

SOLUTION :`(i) PbS(s) + 4H_(2)O_(2) (aq) to PbSO_(4) (s) + 4H_(2)O (l)`
`(ii) 2MnO_(4)^(-) (aq) + 5H_(2)O_(2) (l) + 6H^(+) (aq) to 2Mn^(2+)(aq) + 8 H_(2)O(l) + 5O_(2)(g)`
`(iii)CaO (s) + H_(2)O (g) to Ca(OH)_(2)(aq)`
`(iv) AlCl_(3) (g) + 3H_(2)O(l) to Al(OH)_(3)(s) + 3HCl (aq)`
`(V) Ca_(3)N_(2) (s) + 6H_(2)O(l) to 3Ca(OH)_(2) (aq) + 2NH_(3)(aq)`
(a) Hydrolysis reactions : (iii), (iv), (v). (b). Redox reactions : (i) and (ii).
Discussion
29.

Complete the following chemical reactions (i)PbS_((s)) + H_2O_(2(aq)) to (ii)MnO_(4(aq))^(-)+ H_2O_(2(aq)) to (iii) CaO_((s)) + H_2O_((g)) to (iv)AlCl_(3(g)) + H_2O_((l)) to (v)Ca_3N_(2(s)) + H_2O_((l)) to Classify the above into (a) hydrolysis , (b) redox and (c) hydration reactions.

Answer»

Solution :(i)`PbS_((s)) + 4H_2O_(2(AQ)) to PbSO_(4(s)) + 4H_2O_((l))` (redox reaction)
(ii)`2MnO_(4(aq))^(-) + 5H_2O_(2(l)) + 6H_((aq))^(+) to2Mn_((aq))^(2+)+ 8H_2O_((l)) + 5O_(2(G))` (redox reaction)
(iii)`CaO_((s)) + H_2O_((g)) to Ca(OH)_(2(aq))` (hydrolysis reaction)
(iv)`AlCl_(3(g)) + 6H_2O_((l)) to [Al(OH_2)_6]_((aq))^(3+) + 3Cl_((aq))^(-)` (hydration reaction)
(v) `Ca_3N_(2(s)) + 6H_2O_((l)) to 3Ca(OH)_(2(aq)) + 2NH_(3(aq))` (hydrolysis reaction)
Discussion
30.

Complete the following chemical reactions and classify them into (a) hydrolysis (b) redox (c) hydration reactions. .. ( i)KMnO_4+H_2 O_2to? "" (b )CrCl_3 +H_2O to ? "" (c )CaO +H_2 O to ?

Answer»

Solution :` 1.2KMnO_4 + 3 H_2 O_2 TO2 MnO_2+ 2KOH +3 H_2O+ 3 O_(2 (g))`
thisreactionIs ahydrationreaction
2.`CrCl _3+ 6H_2 Oto[ Cr (H_2 O) _6 ] Cl_3`
thisreactionis ahydrationreaction
3.`CaO + H_2 OtoCa(OH)_2`
this reactionis ahydrolysisreaction.
Discussion
31.

Complete the following chemical reactions and classify them in to (a) hydrolysis (b) redox (c ) hydration reactions. CaO+H_2Oto

Answer»

Solution :(i) `KM_(n)O_(4)+H_(2)O_(2)+H_(2)SO_(4)rarr2MnSO_(4)+K_(2)SO_(4)+5O_(2)+8H_(2)O` (REDOX)
(II) `CaCO+H_(2)OrarrCa(OH)_(2)`(Hydrolysis)
Discussion
32.

Complete the following chemical reactions. a. PbS_(s)+H_(2)O_(2(aq))rarr b. MnO_(4(aq))^(ө)+H_(2)O_(2)rarr c. CaO_(s)+H_(2)O _((g))rarr d. AlCl_(3(g))+H_(2)O _((l ))rarr e. Ca_(3)N_(2(s))+H_(2)O _((l))rarr Classify the above into (a) hydrolysis, (b) redox and (c) hydration reactions.

Answer»

Solution : a. `PbS_((s))+4 H_(2)O_(2(aq))rarrPbSO_(4(s))+4H_(2)O_((L))`
b. `2MnO_(4(aq))^(ө)+5H_(2)O_(2(aq))+ 6H_((aq))^(o+)to2Mn_(aq)^(2+)+8 H_(2)O_((l))+5O_(2(G))`
c. `CaO_((s))+H_(2)O _((g))rarrCa(OH)_(2(aq))`
d. `AlCl_(3(g))+3H_(2)O _((l))rarrAl(OH)_(3(g))+3HCl_((aq))`
e. `Ca_(3)N_(2(s))+6H_(2)O _((l))rarr3Ca(OH)_(2(aq))+2 NH_(3(aq))`
Discussion
33.

Complete the following chemical equations: (i)z+3LiAlH_(4)rarrX+3LiF+3AlF_(3) (ii) x+6H_(2)Orarry+6H_(2) (iii) x+3O_(2)overset(Delta)rarrB_(2)O_(3)+3H_(2)O

Answer»

Solution :(i) `4BF_(3)+3LiAlH_(4)rarr UNDERSET("Diborane (X)")(2B_(2)H_(6))+3LiF+3AlF_(3)`
(ii) `underset((X))(B_(2)H_(6))+6H_(2)Orarr underset("Orthoboric acid")(2H_(3)BO_(3))+6H_(2)`
(iii) `underset((X))(B_(2)H_(6))+3O_(2)OVERSET(Delta)(rarr)B_(2)O_(3)+3H_(2)O`.
Discussion
34.

Complete the following chemical equations : Z+3LiAlH_4 to X+3LiF + 3AlF_3

Answer»

SOLUTION :`4BF_3 + 3LiAlH_4 to UNDERSET"DIBORANE (X)"(2B_2H_6) + 3LiF + 3AlF_3`
Discussion
35.

Complete the followingchemical equations : Z+ 3LiAlH_(4) rarr X + 3LiF + 3AlF_(3) : X + 6H_(2)O rarr Y + 6H_(2)

Answer»

Solution :`4BF_(3) + 3LiAlH_(4) rarr underset(" Diborane (X) ")(2 B_(2)H_(6)) + 3LiF + 3AlF_(3) , underset((X))(B_(2)H_(6)) + 6H_(2)O rarr 2H_(3)BO_(3) + 6H_(2)`
`underset((X))(B_(2)H_(6)) + 3O_(2) overset(Delta)rarr B_(2)O_(3) + 3H_(2)O`
Discussion
36.

Complete the following chemical equations : X+6H_2O to Y + 6H_2

Answer»

SOLUTION :`UNDERSET"(X)"(B_2H_6) + 6H_2O to underset"ORTHOBORIC ACID"(2H_2BO_3)+6H_2`
Discussion
37.

Complete the following chemical equations : 3X+3O_2 overset(Delta)to B_2O_3 + 3H_2O

Answer»

SOLUTION :`underset"(X)"(B_2H_6)+3O_2 OVERSETDELTATO B_2O_3 + 3H_2O`
`Z=BF_3 , X=B_2H_6` and `Y=B(OH)_3` or `H_3BO_3`
Discussion
38.

Complete the following CH_(4)+H_(2)Ounderset(1273K)overset(Ni)(to)______________+________________

Answer»


ANSWER :`CH_(4)+H_(2)OUNDERSET(1273K)overset(Ni)(to)CO+3H_(2)`
Discussion
39.

Complete the following CaC_(2)+2H_(2)Oto____________+_____________

Answer»


Answer :`CaC_(2)+2H_(2)Otounderset("accetylene")(C_(2)H_(2))+CA(OH)_(2)`
Discussion
40.

Complete the followingby supplingintermediates MeCH_(2) C=- CH overset(Na//liq. NH_(3))(to) [A] overset(EtBr)(to)[B]

Answer»

SOLUTION :`MeCH_(2)C-= CH overset("N/A in LIQ. NH"_(3))(to) MeCH_(2) C-= C^(-) N/A^(+) overset(EtBr)underset(-N/ABr)(to) underset("HEX -3- YNE (B)")(MeCH_(2)C-= CEt)`
Discussion
41.

Complete the followingby supplingintermediates (i) CH_(3)CH_(2)Br overset(Mg)underset(ether) (to) A overset(CH_(3) Oh)(to) B +C

Answer»

Solution :`(i) UNDERSET("BROMETHANE")(CH_(3)CH_(2)Br) overset(Mg.ether) underset("(GrigN/Ard reaction)") (to) CH_(3) CH_(2) MGBR overset(CH_(3) OH)(to) underset("Ethane")CH_(3) CH_(3) + underset("bromide (C)")underset("Methoxymag.")(Mg(OCH_(3))Br`
Discussion
42.

Complete the followingby supplingintermediates CH_(3)COOH overset(NaOH)(to)A overset(NaOH,Cao)underset(630K)(to) B overset(Br_(2))underset(hv)(to)C

Answer»

Solution :`underset("Ethanoic acid ")(CH_(3)COOH) overset(N/AOh)(to) underset("SODIUM ethanoate")(CH_(3)COON/A) overset(N/AOH +CaO,630 K)underset("(DECARBOXYLATION)")(to) underset("METHANE")(CH_(4))overset(Br_(2),Hv)underset("(BromiN/Ation)")(to) underset("Bromomthane (C)")(CH_(3)Br)`
Discussion
43.

Complete the followingby supplingintermediates CH_(3)Br overset(Na)underset(ether)(to)A overset(Br_(2))underset(hv)(to)B overset(Na)underset(ether)(to) C

Answer»

Solution :`underset("Bromomethane")(CH_(3)Br) overset(N/A,ether)underset("(Wurttz REACTION )")(to) underset("Ethane")(CH_(3)-CH_(3)) overset(Br_(2).hv)underset("(BromiN/Ation)")(to) underset("Bromoethane")(CH_(3)CH_(2)-Br) overset(N/A,ether)underset("(Wurtz reaction )")(to) underset("Butane (C)")(CH_(3)CH_(2) -CH_(2)CH_(3))`
Discussion
44.

Complete the followingby supplingintermediates CH_(3) CH_(2) Br overset(Li, ether)underset(Delta)(to) [A] overset(Cul)(to)[B] overset((CH_(3))_(2)CHBr)(to) [C]

Answer»

SOLUTION :
Discussion
45.

Complete the followingby supplingintermediates C_(6)H_(5)CH_(2)CH_(3) overset(KMnO_(4))underset(KOH, 373 K)(to) Aoverset(NaOH+ CaO)underset(630K) (to)B

Answer»

Solution :`underset("Ethy lbenzene")(C_(6)H_(5)CH_(2)CH_(3)) underset("(Oxidatin)")overset(KMnO_(4).KOH, 373 K)(to) underset("Pot . benzoate (A) ")(C_(6)H_(5)COOK) overset(N/AOH+CaO.630K)underset(("Decarboxylation"))(to) underset("BENZENE(B)")(C_(6)H_(6))`
Discussion
46.

Complete the following Acid-Base reaction and define reactant as Acid / Base. (i)CH_3NH_2 + H_2O (ii)CO_2 + H_2O (iii)H_2PO_4^(-) + CO_3^(2-) (iv) NH_2NH_2+H_2O (v)C_6H_6+NO_2^(+) (vi) C_6H_6+NH_2^-

Answer»

Solution :(i)`CH_3NH_2` (Base) + `H_2O` (Acid) `hArr CH_3N^(+) H_3 + OH^(-)`
(II)`CO_2` (Acid)+`H_2O` (Base) `hArr H_2CO_3`
(iii)`H_2PO_4^(-)` (Acid) + `CO_3^(2-)` (Base) `hArr HPO_4^(2-) + HCO_3^(-)`
(iv)`NH_2NH_2` (Base) +`H_2O` (Acid) `hArr NH_2NH_3^(+) + OH^(-)`
(V)`C_6H_6` (Base)+ `NO_2^(+)` (Acid) `hArr (C_6H_6NO_2)^+`
(vi)`C_6H_6` (Acid) + `NH_2^(-)` (Base) `hArr (C_6N_6 NH_2)^(-)`
Discussion
47.

Complete the following (a) CH_(3)-CHO underset(Delta)overset(SeO_(2))rarr, (b) H_(3)C-CH_(2)-overset(O)overset(||)(C)-CH_(3) underset(Delta)overset(SeO_(2))rarr, (c)

Answer»


Answer :(a) `underset(O)underset(||)(CH)-CHO` (B) `CH_(3)-OVERSET(O)overset(||)(C)-overset(O)overset(||)(C)-CH_(3)` (c) `(##RES_CHM_ROHR_E03_105_A01##)`
Discussion
48.

Complete the following (a) (b) Ph-O-CH=CH_(2) overset(H_(3)O^(o+))rarrA+B

Answer»


SOLUTION :
(B) `Ph-O-CH=CH_(2) overset(H_(3)O^(o+))RARR PhOH+MeCHO`
Discussion
49.

Complete the following: (a) 2 moles……….., …………, …………… (b) ………..g, ………g, …………..g,……….2g. ( c) underset("atoms")(……H),underset("atoms")(……H), underset("atoms")(6 xx 10^(23)H), underset("atoms")(…….H) (d) {:(6 xx 10^(20),……"total",…,"total",......."total"),("total","atoms","atoms","atoms","atoms"):}

Answer»

Solution :(a) 4,2,4 MOLES,
(b) 21,18,37 G
(c )`6 xx 10^(2), 12 xx 10^(3), 12 xx 10^(3)` H ATOMS
(d) `12 xx 10^(20), 10 xx 10^(20), 8 xx 10^(20)`
Discussion
50.

Complete the following:

Answer»

SOLUTION :
Discussion