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.

In the reaction, CI_2 +OH^- rarrCI +CIO_3^- +H_2O:

Answer»

CHLORINE is oxidise
Chlorine is reduced
Chlorine is oxidised as WELL as reduced
Chlorine is NEITHER oxidised nor reduced

Answer :C
Discussion
2.

In the reaction :CH_(3)COOHoverset(p,Cl_(2))toAoverset(NH_(3)("excess"))toB B is :

Answer»

<P>Acetamide
Glycine
Ammonium acetate
Methane.

Solution :`CH_(3)COOHoverset(NH_(3))toCH_(3)COONH_(4)overset("Heat")toCH_(3)CONH_(2)overset(P_(2)O_(5))toCH_(3)CN`
Discussion
3.

In the reaction,CH_(3)COOHoverset(NH_(3))toAoverset("Heat")toBoverset(P_(2)O_(5))toC C is :

Answer»

AMMONIUM acetate
Acetonitrile
Acetic anhydride
ETHYL acetate.ss

Solution :`CH_(3)COOHoverset(LiAlH_(4))tounderset("Ethyl alcohol")(CH_(3)CH_(2)OH)`
Discussion
4.

In the reaction, CH_(3)COOH overset(LiAlH_(4))to(A) overset(I_(2)+NaOH)to (B) overset("Ag(dust)")to(C) The final product (C) is:-

Answer»

`C_(2)H_(5)I`
`C_(2)H_(5)OH`
`C_(2)H_(2)`
`CH_(3)COCH_(3)`

Solution :`CH_(3)COOH overset(LiAlH_(4))toCH_(3)CH_(2)OH overset(I_(2)//NaOH)toCHI_(3) overset(AG)toC_(2)H_(5)`
Discussion
5.

In the reaction :CH_(3)COOHoverset(LiAlH_(4))toAoverset(PCl_(5))toBoverset(alc KOH)toC the product C is

Answer»

acetaldehyde
Ethyne
acetaldehyde
Ethylene

Solution :`CH_(3)COOHoverset(LiAlH_(4))toCH_(3)UNDERSET((A))(CH_(2)OH)overset(PCl_(5))toCH_(3)underset((B))(CH_(2)Cl)overset(alc KOH)tounderset("Ethylene")underset((C))(CH_(2)=CH_(2))`
Discussion
6.

In the reaction, CH_(3)COOH overset(LliAlH_(4))to A overset(PCl_(5))to B overset("Alc KOH")to C The product C is:

Answer»

Ethylene
Acelyl chloride
Acetaldehyde
Acetylene

Answer :A
Discussion
7.

In the reaction : CH_(3)COOH overset(NaOH)rarr X underset("Heat")overset(NaOH, CaO)rarr Y, Y is :

Answer»

`CH_(3)CHO`
`CH_(4)`
`CH_(3)COCH_(3)`
`C_(2)H_(6)`

Solution :`CH_(3)COOH overset(NaOH)rarr underset((X))(CH_(3)COONA) underset("Heat")overset(NaOH, CaO)rarr underset((Y))(CH_(4))`
Discussion
8.

In the reaction , CH_(3)COOHoverset(Ca(OH)_(2))toAoverset("Heat")toBoverset(NH_(2)OH)toC, C, C is :

Answer»

`CH_(3)COONH_(4)`
`CH_(3)CH_(2)NH_(2)`
`CH_(3)CONH_(2)`
`(CH_(3))_(2)C=NOH`.

Solution :`CH_(3)COOHoverset(Ca(OH)_(2))to(CH_(3)COO)_(2)Caoverset("Heat")toCH_(3)-underset(CH_(3))underset(|)(C)=Ooverset(NH_(2)OH)tounderset(("C"))((CH_(3))_(2)C=NOH`
Discussion
9.

In the reaction, CH_(3)COOH overset(LiAlH_(4))to A overset(PCl_(5))toB overset("Alc. KOH")toC, the product C is

Answer»

ACETYL chloride
acetaldehyde
acetylene
ethylene

Solution :`CH_(3)COOH overset(LiAlH_(4))to underset((A))(CH_(3)CH_(2)OH) overset(PCl_(5))to underset((B))(CH_(3)CH_(2)CL) underset((-HCL))overset("Alc KOH")to underset("Ethylene (C)")(CH_(2)=CH_(2))`
Discussion
10.

In the reaction , CH_(3)CNoverset(Na,C_(2)H_(5)OH)toXoverset(HNO_(2))toYoverset(K_(2)Cr_(2)O_(7),H^(+))toZ, Z is :

Answer»

`CH_(3)CHO`
`CH_(3)CH_(2)NHOH`
`CH_(3)CH_(2)COOH`
`CH_(3)COOH`

Solution :`CH_(3)CNoverset(NaC_(2)H_(5)OH)toCH_(3)CH_(2)NH_(2)overset(HNO_(2))toCH_(3)CH_(2)OHoverset(K_(2)Cr_(2)O_(7),H^(+))toCH_(3)COOH`
Discussion
11.

In the reaction CH_3COOH+HCOOH overset(Mn"O"//300^@C)rarr[X] [X] will be

Answer»

`HCHO`
`CH_3CHO`
`CH_3COCH_3`
`CH_3-COOH`

ANSWER :B
Discussion
12.

In the reaction CH_(3)CN overset(Na,C_(2)H_(5)OH)rarr X, the compound X is :

Answer»

`CH_(3)CH_(2)NH_(2)`
`C_(2)H_(6)`
`CH_(3)CONH_(2)`
`(CH_(3))_(2)NH`.

Solution :`CH_(3)CN+4Hoverset(Na,C_(2)H_(5)OH)rarr UNDERSET((X))(CH_(3)CH_(2)NH_(2))`
Discussion
13.

In the reaction CH_(3)CO OH overset(LiAlH_(4))toA overset(PCl_(5))toB overset(Alc. KOH)toC The product C is

Answer»

Acetaldehyde
Acetylene
Ethylene
Acetyl chloride

Solution :
Discussion
14.

In the reaction CH_3CH=CH_2+H_2O + [O] underset"Acid"overset(KMnO_4)toCH_3-undersetunderset(OH)|CH-undersetunderset(OH)|CH_2overset"[O]"to X + HCOOH X is

Answer»

`CH_3CH_2COOH`
`CH_3COOH`
`CH_3CH_2CHO`
`CH_3CH_2OH`

ANSWER :B
Discussion
15.

In the reaction CH_(3)CH_(2)underset(Br)underset(|)(C)HCH_(2)CH=CH_(2)overset("KOH(alc.)")toA The product A is predominantly.

Answer»

`CH_(3)CH_(2)CH=CHCH=CH_(2)`
`CH_(3)CH=CHCH_(2)CH=CH_(2)`
`CH_(2)=CHCH_(2)CH_(2)CH=CH_(2)`
`CH_(3)CH_(2)CH_(2)CH_(2)C=CH`.

Solution :
Since the DOUBLE bonds are in conjugated POSITIONS the COMPOUND (A) is the most stable and is PREDOMINANTLY formed.
Discussion
16.

In the reaction CH_(3)CH_(2)COONH_(4)overset(P_(2)O_(5))to(A)overset(H^(+)//H_(2)O)to(B) (A) and (B) are:

Answer»

`CH_(3)CH_(2)CONH_(2), CH_(3)CH_(2)COO^(-)`
`CH_(3)CH_(2)COONH_(2) , CH_(3)CH_(2)COOH`
`CH_(3)CH_(2)CN,CH_(3)CH_(2)COO^(-)`
`CH_(3)CH_(2)CN,CH_(3)CH_(2)COOH`

ANSWER :D
Discussion
17.

In the reaction ,CH_(3)CH_(2)COOHoverset(P,Cl_(2))toXoverset(KCN)toY, Y is :

Answer»

`UNDERSET(CN" ")underset(|"")(CH_(2))CH_(2)COOH`
`CH_(3)CH_(2)CONH_(2)`
`(CH_(3))underset(CN" ")underset(|"")CHCOOH`
`underset(CN" ")underset(|"")(CH_(2))COOH`

Solution :`CH_(3)CH_(2)COOHoverset(P,Cl_(2))toCH_(3)underset(Cl)underset(|)(CHCOOH)overset(KCN)tounderset(CN)underset(|)(CH_(3)CHCOOH)`
Discussion
18.

In the reaction , CH_3CH_2CH_2NH_2 underset(0-5^@C)overset(NaNO_2 + "dil.HCl")to P+N_2 The product (P) formed is

Answer»

`CH_3CH=CH_2`
`CH_3CH_2CH_2OH`
both (a) and (B)
None of these

SOLUTION :`CH_3CH_2CH_2NH_2 underset(0-5^@C)OVERSET(NaNO_2 + dil. HCL)tounderset"(P)"(CH_3CH_2CH_2OH+ N_2)`
Discussion
19.

In the reaction CH_(3)CH_(2)COOHunderset(CI_(2))overset(Red P)rarrAoverset(aq.NaOH)rarrB The productB is

Answer»

LACTIC acid
acrylic acid
`CH_(3)CH_(2)CONH_(2)`
TARTARIC acid

Answer :A
Discussion
20.

In the reaction : CH_(3)CH_(2)COOHoverset(P,Br_(2))toXoverset(alc.KOH)toY Yis

Answer»

`CH_(2)=CHCOOH`
`CH_(3)CH_(2)CH_(2)OH`
`underset(CL)underset(|)(CH_(2))C=CHCOOH`
`CH_(3)underset(OH)underset(|)(CH)COOH`

SOLUTION :`CH_(3)CH_(2)COOHoverset(Cl_(2),P)toCH_(3)underset(Cl)underset(|)(CH_(3)CHOOH)OVERSET(alc . KOH)toCH_(2)=CH-COOH`
Discussion
21.

In the reaction CH_3CH_2CH_2Br overset("alc. KOH")to A overset(H_3O^(+))to B underset(523K)overset(Cu)to C the final product C is :

Answer»

`CH_3CH_2CH_2OH`
`CH_3underset(OH)UNDERSET(|)CHCH_3`
`CH_3CH = CH_2`
`CH_3COCH_3`

ANSWER :D
Discussion
22.

In the reaction : CH_(3)CH_(2)Br underset("Ether")overset(Mg)rarr X underset("Ether")overset(CH_(3)Br)rarr Y + MgBr_(2) Y is :

Answer»

Ethane
Propane
ISOPROPYL alcohol
Propyl alcohol

Solution :`CH_(3)CH_(2)Br underset("ether")OVERSET(Mg)rarr underset((X))(CH_(3)CH_(2)MgBr) underset("ether")overset(CH_(3)Br)rarr underset((Y))(CH_(3)CH_(2)CH_(3))`
Discussion
23.

In the reaction, CH_(3)(CH_(2))_(4)CNoverset(Zn,HCl)rarr Aoverset(HONO)rarr Boverset(O)rarrC. C is :

Answer»

Pentanal
Pentanone
2 - Hexanone
Hexanal.

Solution :
Discussion
24.

In the reaction CH_(3)C -= overset(theta)(C) overset(o+)(N)a + (CH_(3))_(2) CHCl rarr, the product formed is:

Answer»

`4-` Methyl `-2-` PENTYNE only
Proopyne
PROPYNE and propylene
Mixture of propene, propyne, and`4-` methyl `-2-` penyne

Solution :
Discussion
25.

In the reaction, (CH_(3))_(2)C=O+xrarr(CH_(3))_(2)C(OC_(2)H_(5))_(2)+HCOOC_(2)H_(5)X is:

Answer»

ETHYL oxalate
propan-2-ol
ethyl ORTHO FORMATE
none of these

Answer :C
Discussion
26.

In the reaction (CH_(3))_(3)C=CHCOOHoverset(R )rarr(CH_(3))_(2)C=CHCH_(2)OH 'R' is

Answer»

`B_(2)H_(6)`
`LiAIH_(4)//ether`
ALC,KOH
`H_(2),Pd//BaSO_(4)`

Answer :B
Discussion
27.

In the reaction : (CH_(3))_(2)C = CH_(2) + HOC1, the major product is :

Answer»

`(CH_(3))_(2) UNDERSET(OC1)underset(|)(C) - CH_(3)`
`(CH_(3))_(2) - underset(OH)underset(|)(CH) - underset(C1)underset(|)(CH_(2))`
`(CH_(3))_(2) - underset(C1)underset(|)(CH) - underset(OH)underset(|)(CH_(2))`
`(CH_(3))_(2) - CH_(2) - CH_(2) OC1`

Solution :`CH_(3) - overset(CH_(3))overset(|)(C) = CH_(2) overset(HOCL)RARR CH_(3) - underset(OH)underset(|)overset(CH_(3))overset(|)(C) - underset(Cl)underset(|)(CH_(2))`
Discussion
28.

In the reaction CH_3 - undersetoverset(|)(CH_3)(C)H - CH_2 -O- CH_2 - CH_3HI overset("heated")(to) Which of the following compounds will beformed

Answer»

`CH_3 -undersetoverset(|)(CH_3)(C)H - CH_2OH + CH_3CH_3`
`CH_3- undersetoverset(|)(CH_3)(C)H - CH_3+CH_3CH_2OH`
`CH_3 - undersetoverset(|)(CH_3)(C)H - CH_2OH + CH_3CH_2I`
`CH_3- undersetoverset(|)(CH_3)(C)H - CH_2I + CH_3CH_2OH`

ANSWER :C
Discussion
29.

In the reaction : CH_(3) - underset(Br)underset(|)overset(Br)overset(|)(C) - underset(Br)underset(|)overset(Br)overset(|)(C) - H overset(Zn)rarr the product is :

Answer»

1. `CH_(3) - C -= CH` <BR>2. `CH_(3) - CH = CH_(2)`
3. `CH_(3) - underset(Br)underset(|)(C) = underset(Br)underset(|)(CH)`
4. `CH_(3)CH_(2)CH_(3)`

Answer :A
Discussion
30.

In the reaction: CH_(3)-overset(CH_(3))overset(|)(C)H-CH_(2)-O-CH_(2)-CH_(3)+HI Which of the following compounds will be formed?

Answer»

`CH_(3)-overset(CH_(3))overset(|)(C)H-CH_(2)OH+CH_(3)CH_(2)-I`
`CH_(3)-overset(CH_(3))overset(|)(C)H-CH_(2)I+CH_(3)CH_(2)OH`
`CH_(3)-UNDERSET(CH_(3))underset(|)(C)H-CH_(3)+CH_(3)CH_(2)OH`
`CH_(3)-underset(CH_(3))underset(|)(C)H-CH_(2)OH+CH_(3)CH_(3)`

SOLUTION :NUCLEOPHILIC attack occurs on the smaller alkyl group.
.
Discussion
31.

In the reaction CH_(3)-underset(Br)underset("|")(CH)-CH_(3)underset(KOH)overset(alc.)rarrXunderset("peroxide")overset(HBr)rarrYunderset("acetone")overset(NaI)rarrZ,Z is :

Answer»

`CH_(3)CH_(2)CH_(2)I`
`CH_(3)underset(I)underset(|)(C)HCH_(3)`
`CH_(3)CH=CHI`
`CH_(3)underset(I)underset(|)(C)HCH_(2)I`

Solution :`CH_(3)-underset(Br)underset("|")(CH)-CH_(3)overset("alc. KOH")rarrCH_(3)underset((X))(CH)=CH_(3)underset("PEROXIDE")overset(HBr)rarrCH_(3)underset((Y))(CH_(2))CH_(2)BRUNDERSET("acetone")overset("NaI")rarrCH_(3)`
Discussion
32.

In the reaction CH_3-overset(CH_(3))overset(|)CH-CH_2-O-CH_2-CH_3+HIoverset("Heat")to...... which of the following compounds will be formed.

Answer»

`CH_3-overset(CH_(3))overset(|)CH-CH_2OH+CH_3CH_2I`
`CH_3-overset(CH_(3))overset(|)CH-CH_2I+CH_3CH_2OH`
`CH_3-UNDERSET(CH_(3))underset(|)CH-CH_2+CH_3CH_2OH`
`CH_3-underset(CH_(3))underset(|)CH-CH_2OH+CH_3CH_3`

SOLUTION :NA
Discussion
33.

In the reaction CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)-O-CH_(2)-CH_(2)-CH_(3)+Hioverset("heated") to ……….. Which of the following compounds will be formed

Answer»

`CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)-I+CH_(3)CH_(2)OH`
`CH_(3)-UNDERSET(CH_(3))underset(|)CH-CH_(3)+CH_(3)CH_(2)OH`
`CH_(3)-underset(CH_(3))underset(|)CH-CH_(2)OH+CH_(3)CH_(3)`
`CH_(3)-underset(CH_(3))underset(|)CH-CH_(2)OH+CH_(3)-CH_(2)-I`

Solution :`CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)-O-CH_(2)-CH_(3)overset("heated")to CH_(3)-overset(CH_(3))overset(|)CH-CH_(2)OH+CH_(3)CH_(2)I`
It will follows `S_(N^(2))` MECHANISM
Discussion
34.

In the reaction CH_(3) - overset(C_(2)H_(5))overset(|) (C)= O +HCN to A overset(H_(2)O^(+)) to BThe compound B is

Answer»

it is atautomer of KETONE
it is a functional ISOMER of ketone
do not SHOW OPTICAL ACTIVITY
show optical activity

Answer :D
Discussion
35.

In the reaction CH_(3) CN + 2H underset("ether")overset(2 HCl)rarr X underset(Delta) overset(H_(2)O)rarr Y. Yis

Answer»

dimethylamine
ethanamine
acetaldehyde
acetone.

Solution :`CH_(3)CN+2H underset(("Stephen"),("reduction"))overset(HCl//"ether")(rarr)underset((X))underset(("Acetaldimine"),("HYDROCHLORIDE"))(CH_(3)CH=NH.HCl) overset(H_(2)O //DELTA)(rarr) underset("Acetaldehyde")(CH_(3)CHO)+NH_(4)Cl`
Discussion
36.

In the reaction, HC overline=C^(-)Na^+ + (CH_3)_2CHCl rarr product formed is:

Answer»

4-methyl-2 pentyne
Propyne
Propyne and propene
3-Methylbutyne

Answer :A
Discussion
37.

In thereaction CH_(3)-CH_(2) - Br + NaNO_(2) underset("sulphoxide")overset("dimethyl")to A overset(Cl_(2)//NaOH)to B TheproductB is

Answer»

`CH_(3) - CH_(2) - NO_(2)`
`CH_(3) - C Cl_(2) - NO_(2)`
`Cl_(2) CH_(2) - CH_(2) - NO_(2)`
`Cl_(2)CH- CH_(2)- NO_(2)`

Solution :`CH_(3) - CH_(2) - Br+ NaNO_(2) UNDERSET("Sulphoxide")OVERSET("dimethyl")to CH_(3)- CH_(2) - NO_(2) overset(Cl_(2) + NAOH)toCH_(3)- C Cl_(2) - NO_(2)`
Discussion
38.

In the reaction CH_(3) CH = O + A overset("dryHCl") toCH_(3) CH(OC_(2)H_(5))_(2) + H_(2)OThe compound A is

Answer»

propan-1- ol
ETHANOL
METHANOL
`C_(2)H_(5) - O - C_(2) H_(5)`

ANSWER :B
Discussion
39.

In the reaction CH_(3) C -= C^(-) - Na^(+) +(CH_(3))_(2) CH - Cl to ? the product formed is .

Answer»

propene
propyne
propyne and propene
4 - methylpentyne - 2

Solution :`CH_(3) -UNDERSET (Cl) underset(|) CH - CH_(3)C -= C^(-) Na^(+) to`
`underset ("Propene") (CH_(3) - CH) = CH_(2) + underset ("Propyne")(CH_(3)C -= CH) + NaCl`
Discussion
40.

In the reaction : CH_(2) = CH - CH = CH_(2) + Br_(2) overset(-40^(@)C)rarr the predominant product is :

Answer»

3, 4-Dibromo but-1-ene
1, 4-Dibromo but-2-ene
1, 2, 3, 4-Tetrabromobutane
2, 4-Dibromo but-2-ene

Solution :The addition to conjugate diene at `-40^(@)C` GIVES 1, 4-addition product.
`CH_(2) = CH - CH = CH_(2) + Br_(2) overset(-40^(@)C)rarr UNDERSET(Br)underset(|)(CH_(2))-CH = CH - CH_(2)Br`
At low TEMPERATURES `(-80^(@)C)` it gives 1, 2-addition product.
Discussion
41.

In the reaction CH-= CHoverset(Na//NH_3//(l))(rarr)(A)overset(DCI)(rarr)(B)overset((i)Sia_2BH)(rarr)(C ). The product 'C' is

Answer»

`D - C -= C - D`
`CH_3-OVERSET(O)overset(||)(C )-H`

ANSWER :C
Discussion
42.

In the reaction : {:(CH,),(|||,+O overset("alk."KMnO_(3))rarr A),(CH,):} the product is :

Answer»

`underset(OH)underset(|)(CH_(2))-underset(OH)underset(|)(CH_(2))`
`CH_(3)COOH`
`underset(COOH)underset(|)(COOH)`
`CH_(3)CHO`

Solution :`{:(CH,,COOH),(|||,+ overset(KMnO_(4))rarr,"|"),(CH,,underset((A))(COOH)):}`
Discussion
43.

In the reaction CaS + H_2S rarr…….the products are:

Answer»

`CaS_2 + H_2`
`CaS_3 + H_2`
`CaS_5 + H_2`
`CA + S`

ANSWER :C
Discussion
44.

In the reaction : C_(6)H_(6) + RCOCl overset(AlCl_(3))rarr C_(6)H_(5)COR + HCl the attacking electrophile is :

Answer»

`AlCl_(2)^(+)`
`R^(+)`
`RCO^(+)`
`AlCl_(4)^(-)`

ANSWER :C
Discussion
45.

In the reaction C_6H_6 + CO + HCl underset(AlCl_3)overset("anhyd")to X + HCl the compound X is :

Answer»

`C_6H_5 CH_3`
`C_6H_5CH_2Cl`
`C_6H_5CHO`
`C_6H_5COOH`

ANSWER :C
Discussion
46.

In the reaction, C_(6)H_(5)overset(O)overset(||)C-CHCl_(2)underset("Conc. NaOH(aq))rarr the end product is :

Answer»


`C_(6)H_(5)COCHO`
`C_(6)H_(5)COCH_(2)OH`
`C_(6)H_(5)-underset(OH)underset("| ")"CH"-COONa`.

SOLUTION :`C_(6)H_(5)COCHCl_(2)overset(NaOH)rarrC_(6)H_(5)COCH(OH)_(2)rarrC_(6)H_(5)COCHOoverset(OH^(-))underset("INTERNAL Cannizzaro's reaction")rarrC_(6)H_(5)-overset(OH)overset("| ")underset(H)underset("|")C-overset(O)overset(||)C-O^(-)`
Discussion
47.

In the reaction, C_(6)H_(5)NH_(2)overset(NaNO_(2))underset(HCl)rarr Xoverset(CuCN)rarr Yoverset(H_(2)O)rarr Z, Z is :

Answer»

`C_(6)H_(5)CH_(2)NH_(2)`
`C_(6)H_(5)NHCH_(3)`
`C_(6)H_(5)COOH`
`C_(6)H_(5)NH_(2)COOH.`

SOLUTION :
Discussion
48.

In the reaction, C_(6)H_(5)CHO + (CH_(3)CO)_(20)overset(CH_(3)COONa)to(A) product (A) is

Answer»

Acetaldehyde
Cinnamic ACID
`beta`-naphthol
Phenol

Solution :Perkin REACTION is the condensation reactiion in which aromatic ALDEHYDE is heated with an aromatic aldehyde is heated with an anhydride of an aliphatic acid in presence of sodium SALT of same acid to form `alpha, beta` unsaturated acid .
`underset("Benxaldehy de")(C_(6)H_(5)CHO)+underset("Acetic anhydride")((CH_(3)CO)_(2))O overset(CH_(3)COONa)to underset("Cinnamic acid")(C_(6)H_(5)CH=CHCOOH)+underset("Acetic acid ")(CH_(3)COOH)`
Discussion
49.

In the reaction C_(6)H_(5)NH_(2)underset(0^(@)C)overset(HONO)rarrXoverset(H_(3)PO_(3))rarrY the product y is

Answer»

`C_(6)H_(5)CHO`
`C_(6)H_(5)CN`
`C_(6)H_(5)NO_(2)`
`C_(6)H_(6)`

Answer :D
Discussion
50.

In this reaction C_(6)H_(5)CH_(3)underset(CrO_(3))overset((CH_(3)CO)_(2)O)rarr M underset("hydrolysis")overset("alkaline")rarr C_(6)H_(5)CHO acetic anhydride is used

Answer»

As CATALYST
As an OXIDISING agent
To from a non -oxidizable DERIVATIVE of benzaldehyde
To help the reaction to proceed SMOOTHLY

Answer :C
Discussion