p-Block Elements
528 Questions
Start JEE Mains Test
2022
Q301
AP-EAPCET
MCQ
20 May 2026
Which of the following is formed when $\mathrm{SO}_3$ is absorbed by concentrated $\mathrm{H}_2 \mathrm{SO}_4$ ?
A.
$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_8$
B.
$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_3$
C.
$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_7$
D.
$\mathrm{H}_2 \mathrm{S}_2 \mathrm{O}_5$
2022
Q302
AP-EAPCET
MCQ
20 May 2026
Identify the correct statements about boron.
I. It has high melting point.
II. It has high density.
III. It has high electrical conductivity.
IV. B-10 isotope of it has high ability to absorb neutrons.
A.
I and II only
B.
II and III only
C.
III and IV only
D.
I and IV only
2022
Q303
AP-EAPCET
MCQ
20 May 2026
Assertion (A) HCl gas is dried by passing through concentrated H$_2$SO$_4$.
Reason (R) HCl gas reacts with NH$_3$ that gives white fumes.
A.
Both A and R are correct and R is the correct explanation of A.
B.
Both A and R are correct and R is not the correct explanation of A.
C.
A is correct but R is incorrect.
D.
A is incorrect but R is correct.
2022
Q304
BITSAT
MCQ
11 Jun 2026
Ge (II) compounds are powerful reducing agents whereas Pb (IV) compounds are strong oxidants. It can be because
A.
Pb is more electropositive than Ge.
B.
ionisation potential of lead is less than that of Ge.
C.
ionic radii of Pb2+ and Pb4+ are larger than that of Ge2+ and Ge4+.
D.
more pronounced inert pair effect in lead has.
2022
Q305
BITSAT
MCQ
11 Jun 2026
The number of 3C$-$2e$-$ bonds present in diborane is
A.
1
B.
2
C.
3
D.
4
2022
Q306
BITSAT
MCQ
11 Jun 2026
The total number of P$-$OH bonds for pyrophosphoric acid
A.
4
B.
5
C.
6
D.
8
2021
Q307
JEE Mains
MCQ
14 Mar 2026
The oxide without nitrogen-nitrogen bond is :
A.
N2O
B.
N2O4
C.
N2O3
D.
N2O5
2021
Q308
JEE Mains
MCQ
14 Mar 2026
Which one of the following correctly represents the order of stability of oxides, X2O; (X = halogen)?
A.
Br > Cl > I
B.
Br > I > Cl
C.
Cl > I > Br
D.
I > Cl > Br
2021
Q309
JEE Mains
MCQ
14 Mar 2026
The number of S = O bonds present in sulphurous acid, peroxodisulphuric acid and pyrosulphuric acid, respectively are :
A.
2, 3 and 4
B.
1, 4 and 3
C.
2, 4 and 3
D.
1, 4 and 4
2021
Q310
JEE Mains
MCQ
14 Mar 2026
Which one of the following is formed (mainly) when red phosphorus is heated in a sealed tube at 803 K?
A.
White phosphorus
B.
Yellow phosphorus
C.
$\beta$-Black phosphorus
D.
$\alpha$-Black phosphorus
2021
Q311
JEE Mains
MCQ
14 Mar 2026
In which one of the following molecules strongest back donation of an electron pair from halide to boron is expected?
A.
BCl3
B.
BF3
C.
BBr3
D.
BI3
2021
Q312
JEE Mains
MCQ
14 Mar 2026
In polythionic acid, H2SxO6 (x = 3 to 5) the oxidation state(s) of sulphur is/are :
A.
+ 5 only
B.
+ 6 only
C.
+ 3 and + 5 only
D.
0 and + 5 only
2021
Q313
JEE Mains
MCQ
14 Mar 2026
The number of non-ionisable hydrogen atoms present in the final product obtained from the hydrolysis of PCl5 is :
A.
0
B.
2
C.
1
D.
3
2021
Q314
JEE Mains
MCQ
14 Mar 2026
Chalcogen group elements are :
A.
Se, Tb and Pu.
B.
Se, Te and Po.
C.
S, Te and Pm.
D.
O, Ti and Po.
2021
Q315
JEE Mains
MCQ
14 Mar 2026
The incorrect statement is :
A.
Cl2 is more reactive than ClF.
B.
F2 is more reactive than ClF.
C.
On hydrolysis ClF forms HOCl and HF.
D.
F2 is a stronger oxidizing agent than Cl2 in aqueous solution.
2021
Q316
JEE Mains
MCQ
14 Mar 2026
Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : SO2(g) is absorbed to a large extent than H2(g) on activated charcoal.
Reason R : SO2(g) has a higher critical temperature than H2(g).
In the light of the above statements, choose the most appropriate answer from the options given below.
Assertion A : SO2(g) is absorbed to a large extent than H2(g) on activated charcoal.
Reason R : SO2(g) has a higher critical temperature than H2(g).
In the light of the above statements, choose the most appropriate answer from the options given below.
A.
Both A and R are correct but R is not the correct explanation of A.
B.
Both A and R are correct and R is the correct explanation of A.
C.
A is not correct but R is correct.
D.
A is correct but R is not correct.
2021
Q317
JEE Mains
MCQ
14 Mar 2026
Match List - I with List - II :
Choose the correct answer from the options given below :
| List - I (compound) |
List - II (effect/affected species) |
||
|---|---|---|---|
| (a) | Carbon monoxide | (i) | Carcinogenic |
| (b) | Sulphur dioxide | (ii) | Metabolized by pyrus plants |
| (c) | Polychlorinated biphenyls | (iii) | haemoglobin |
| (d) | Oxides of Nitrogen | (iv) | Stiffness of flower buds |
Choose the correct answer from the options given below :
A.
(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
B.
(a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)
C.
(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)
D.
(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
2021
Q318
JEE Mains
MCQ
14 Mar 2026
Number of Cl = O bonds in chlorous acid, chloric acid and perchloric acid respectively are :
A.
3, 1 and 1
B.
4, 1 and 0
C.
1, 1 and 3
D.
1, 2 and 3
2021
Q319
JEE Mains
MCQ
14 Mar 2026
The product obtained from the electrolytic oxidation of acidified sulphate solutions, is :
A.
HSO$_4^ - $
B.
HO3SOOSO3H
C.
HO2SOSO2H
D.
HO3SOSO3H
2021
Q320
JEE Mains
MCQ
14 Mar 2026
Which one of the following compounds of Group-14 elements is not known?
A.
[GeCl6]2$-$
B.
[Sn(OH)6]2$-$
C.
[SiCl6]2$-$
D.
[SiF6]2$-$
2021
Q321
JEE Mains
MCQ
14 Mar 2026
Given below are the statements about diborane
(a) Diborane is prepared by the oxidation of NaBH4 with I2
(b) Each boron atom is in sp2 hybridized state
(c) Diborane has one bridged 3 centre-2-electron bond
(d) Diborane is a planar molecule
The option with correct statements is :
(a) Diborane is prepared by the oxidation of NaBH4 with I2
(b) Each boron atom is in sp2 hybridized state
(c) Diborane has one bridged 3 centre-2-electron bond
(d) Diborane is a planar molecule
The option with correct statements is :
A.
(c) and (d) only
B.
(a) only
C.
(c) only
D.
(a) and (b) only
2021
Q322
JEE Mains
MCQ
14 Mar 2026
Which one of the following group-15 hydride is the strongest reducing agent?
A.
AsH3
B.
BiH3
C.
PH3
D.
SbH3
2021
Q323
JEE Mains
MCQ
14 Mar 2026
The species given below that does NOT show disproportionation reaction is :
A.
$BrO_4^ - $
B.
$Br{O^ - }$
C.
$BrO_2^ - $
D.
$BrO_3^ - $
2021
Q324
JEE Mains
MCQ
14 Mar 2026
Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10 (in 4 : 1 ratio) is :
A.
acidic
B.
basic
C.
amphoteric
D.
neutral
2021
Q325
JEE Mains
MCQ
14 Mar 2026
Match List - I with List - II
Choose the most appropriate answer from the options given below :
| List - I (process) |
List - II (catalyst) |
||
|---|---|---|---|
| (a) | Deacron's process | (i) | ZSM-5 |
| (b) | Contact process | (ii) | $CuC{l_2}$ |
| (c) | Cracking of hydrocarbons | (iii) | Particles 'Ni' |
| (d) | Hydrogenation of vegetable oils | (iv) | ${V_2}{O_5}$ |
Choose the most appropriate answer from the options given below :
A.
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
B.
(a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
C.
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
D.
(a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
2021
Q326
JEE Mains
MCQ
14 Mar 2026
The number of ionisable hydrogens present in the product obtained from a reaction of phosphorus trichloride and phosphonic acid is :
A.
3
B.
0
C.
2
D.
1
2021
Q327
JEE Mains
MCQ
14 Mar 2026
The set that represents the pair of neutral oxides of nitrogen is :
A.
NO and N2O
B.
N2O and NO2
C.
NO and NO2
D.
N2O and N2O3
2021
Q328
JEE Mains
MCQ
14 Mar 2026
The INCORRECT statement regarding the structure of C60 is :
A.
The five-membered rings are fused only to six-membered rings.
B.
It contains 12 six-membered rings and 24 five-membered rings.
C.
Each carbon atom forms three sigma bonds.
D.
The six-membered rings are fused to both six and five-membered rings.
2021
Q329
JEE Mains
MCQ
14 Mar 2026
Match List - I with List - II :
Choose the correct answer from the options given below :
| List - I Industrial process |
List - II Application |
||
|---|---|---|---|
| (a) | Haber's process | (i) | $HN{O_3}$ synthesis |
| (b) | Ostwald's process | (ii) | Aluminium extraction |
| (c) | Contact process | (iii) | $N{H_3}$ synthesis |
| (d) | Hal-Heroult process | (iv) | ${H_2}S{O_4}$ synthesis |
Choose the correct answer from the options given below :
A.
(a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
B.
(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
C.
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
D.
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2021
Q330
JEE Mains
MCQ
14 Mar 2026
A group of 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :
A.
As
B.
Sb
C.
Bi
D.
P
2021
Q331
JEE Mains
MCQ
14 Mar 2026
Match List - I with List - II :
Choose the correct answer from the options given below :
| List - I Name of oxo acid |
List - II Oxidation state of 'P' |
||
|---|---|---|---|
| (a) | Hypophosphorous acid | (i) | +5 |
| (b) | Orthophosphoric acid | (ii) | +4 |
| (c) | Hypophosphoric acid | (iii) | +3 |
| (d) | Orthophosphorous acid | (iv) | +2 |
| (v) | +1 |
Choose the correct answer from the options given below :
A.
(a) - (iv), (b) - (v), (c) - (ii), (d) - (iii)
B.
(a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
C.
(a) - (v), (b) - (i), (c) - (ii), (d) - (iii)
D.
(a) - (v), (b) - (iv), (c) - (ii), (d) - (iii)
2021
Q332
JEE Mains
MCQ
14 Mar 2026
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : In TlI3, isomorphous to CsI3, the metal is present in +1 oxidation state.
Reason R : Tl metal has fourteen f electrons in its electronic configuration.
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion A : In TlI3, isomorphous to CsI3, the metal is present in +1 oxidation state.
Reason R : Tl metal has fourteen f electrons in its electronic configuration.
In the light of the above statements, choose the most appropriate answer from the options given below :
A.
A is correct but R is not correct
B.
A is not correct but R is correct
C.
Both A and R are correct but R is NOT the correct explanation of A
D.
Both A and R are correct and R is the correct explanation of A
2021
Q333
JEE Mains
MCQ
14 Mar 2026
Find A, B and C in the following reactions :
$N{H_3} + A + C{O_2} \to {(N{H_4})_2}C{O_3}$
${(N{H_4})_2}C{O_3} + {H_2}O + B \to N{H_4}HC{O_3}$
$N{H_4}HC{O_3} + NaCl \to N{H_4}Cl + C$
$N{H_3} + A + C{O_2} \to {(N{H_4})_2}C{O_3}$
${(N{H_4})_2}C{O_3} + {H_2}O + B \to N{H_4}HC{O_3}$
$N{H_4}HC{O_3} + NaCl \to N{H_4}Cl + C$
A.
$A - {O_2};B - C{O_2};C - N{a_2}C{O_3}$
B.
$A - {H_2}O;B - {O_2};C - NaHC{O_3}$
C.
$A - {H_2}O;B - {O_2};C - N{a_2}C{O_3}$
D.
$A - {H_2}O;B - C{O_2};C - NaHC{O_3}$
2021
Q334
JEE Mains
MCQ
14 Mar 2026
On treating a compound with warm dil. H2SO4, gas X is evolved which turns K2Cr2O7 paper acidified with dil. H2SO4 to a green compound Y. X and Y respectively are :
A.
X = SO2, Y = Cr2O3
B.
X = SO3, Y = Cr2(SO4)3
C.
X = SO3, Y = Cr2O3
D.
X = SO2, Y = Cr2(SO4)3
2021
Q335
JEE Mains
MCQ
14 Mar 2026
Given below are two statements :
Statement I : $\alpha$ and $\beta$ forms of sulphur can change reversibly between themselves with slow heating or slow cooling.
Statement II : At room temperature the stable crystalline form of sulphur is monoclinic sulphur.
In the light of the above statements, choose the correct answer from the options given below :
Statement I : $\alpha$ and $\beta$ forms of sulphur can change reversibly between themselves with slow heating or slow cooling.
Statement II : At room temperature the stable crystalline form of sulphur is monoclinic sulphur.
In the light of the above statements, choose the correct answer from the options given below :
A.
Statement I is true but Statement II is false.
B.
Statement I is false but Statement II is true.
C.
Both Statement I and Statement II are true.
D.
Both Statement I and Statement II are false.
2021
Q336
JEE Mains
MCQ
14 Mar 2026
The correct statement about B2H6 is :
A.
Its fragment, BH3, behaves as a Lewis base.
B.
All B$-$H$-$B angles are of 120$^\circ$.
C.
The two B$-$H$-$B bonds are not of same length.
D.
Terminal B$-$H bonds have less p-character when compared to bridging bonds.
2021
Q337
JEE Mains
MCQ
14 Mar 2026
Al2O3 was leached with alkali to get X. The solution of X on passing of gas Y, forms Z.
X, Y and Z respectively are :
A.
X = Na[Al(OH)4], Y = CO2, Z = Al2O3.xH2O
B.
X = Al(OH)3, Y = CO2, Z = Al2O3
C.
X = Al(OH)3, Y = SO2, Z = Al2O3.xH2O
D.
X = Na[Al(OH)4], Y = SO2, Z = Al2O3
2021
Q338
JEE Mains
Numerical
14 Mar 2026
Consider the sulphides HgS, PbS, CuS, Sb2S3, As2S3 and CdS. Number of these sulphides soluble in 50% HNO3 is ___________.
Correct Answer: 4
Explanation:
Pbs, CuS, As2S3, CdS are soluble in 50% HNO3.
HgS, Sb2S3 are insoluble in 50% HNO3
So, answer is 4.
HgS, Sb2S3 are insoluble in 50% HNO3
So, answer is 4.
2021
Q339
JEE Mains
Numerical
14 Mar 2026
The number of halogen/(s) forming halic (V) acid is ___________.
Correct Answer: 3
Explanation:
Except F and At, all other halide can form Halic (V)
acid.
F cannot go in +5 oxidation state.
At is radioactive.
The number of halogen forming halic (V) acid
HClO3
HBrO3
HIO3
So answer is 3
F cannot go in +5 oxidation state.
At is radioactive.
The number of halogen forming halic (V) acid
HClO3
HBrO3
HIO3
So answer is 3
2021
Q340
JEE Mains
Numerical
14 Mar 2026
A xenon compound 'A' upon partial hydrolysis gives XeO2F2. The number of lone pair of electrons present in compound A is _________. (Round off to the Nearest Integer)
Correct Answer: 19
Explanation:
XeF6 on partial hydrolysis form XeO2F2.
XeF6 + H2O $\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Hydrolysis}^{Partial}} $ XeO2F2 + 2HF
In XeF6, central atom Xe has one lone pair all 6 fluorine have 3 lone pairs each.
So, total number of lone pair on XeF6 = 1 + (6 $\times$ 3) = 19
XeF6 + H2O $\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{Hydrolysis}^{Partial}} $ XeO2F2 + 2HF
In XeF6, central atom Xe has one lone pair all 6 fluorine have 3 lone pairs each.
So, total number of lone pair on XeF6 = 1 + (6 $\times$ 3) = 19
2021
Q341
JEE Mains
Numerical
14 Mar 2026
The reaction of white phosphorus on boiling with alkali in inert atmosphere resulted in the formation of product 'A'. The reaction of 1 mol of 'A' with excess of AgNO3 in aqueous medium gives ___________ mol(s) of Ag. (Round off to the Nearest Integer).
Correct Answer: 4
Explanation:
2021
Q342
JEE Mains
Numerical
14 Mar 2026
Among the following allotropic forms of sulphur, the number of allotropic forms, which will show paramagnetism is _________.
(A) $\alpha$-sulphur
(B) $\beta$-sulphur
(C) S2-form
(A) $\alpha$-sulphur
(B) $\beta$-sulphur
(C) S2-form
Correct Answer: 1
Explanation:
Only S2-form of sulphur is paramagnetic in nature. Because S2 is like O2 i.e. paramagnetic as per molecular orbital theory. It contains unpaired electron. While $\alpha $-sulphur and $\beta $-sulphur are diamagnetic as they do not have unpaired electron.
2021
Q343
JEE Mains
Numerical
14 Mar 2026
The reaction of sulphur in alkaline medium is given below:
The values of 'a' is _______. (Integer answer)
The values of 'a' is _______. (Integer answer)
Correct Answer: 12
Explanation:
The two half reaction, one separately are as follows
${S_8} + 16{e^ - }\buildrel {} \over \longrightarrow 8{S^{2 - }}$ (Reduction)
${S_8} + 12{H_2}O\buildrel {} \over \longrightarrow 4{S_2}O_3^{2 - } + 24{H^ + } + 16{e^ - }$
_____________________________________
$2{S_8} + 12{H_2}O\buildrel {} \over \longrightarrow \mathop {8{S^{2 - }} + 4{S_2}O_3^{2 - }}\limits_{} + 24{H^ + }$
For balancing in basic medium, Add an equal number of OH$-$ that of H+, we get
$2{S_8} + 12{H_2}O + 24O{H^ - }\buildrel {} \over \longrightarrow 8{S^{2 - }} + 4{S_2}O_3^{2 - } + 24{H_2}O$
$2{S_8} + 24O{H^ - }\buildrel {} \over \longrightarrow 8{S^{2 - }} + 4{S_2}O_3^{2 - } + 12{H_2}O$
or ${S_8} + 12O{H^ - }\buildrel {} \over \longrightarrow 4{S^2} + 2{S_2}O_3^{2 - } + 6{H_2}O$ .... (i)
On comparing (i) with
${S_8} + aO{H^ - }(aq)\buildrel {} \over \longrightarrow b{S^2}(aq) + c{S_2}O_3^{2 - } + d{H_2}O$
We get, a = 12; b = 4; c = 2; d = 6
${S_8} + 16{e^ - }\buildrel {} \over \longrightarrow 8{S^{2 - }}$ (Reduction)
${S_8} + 12{H_2}O\buildrel {} \over \longrightarrow 4{S_2}O_3^{2 - } + 24{H^ + } + 16{e^ - }$
_____________________________________
$2{S_8} + 12{H_2}O\buildrel {} \over \longrightarrow \mathop {8{S^{2 - }} + 4{S_2}O_3^{2 - }}\limits_{} + 24{H^ + }$
For balancing in basic medium, Add an equal number of OH$-$ that of H+, we get
$2{S_8} + 12{H_2}O + 24O{H^ - }\buildrel {} \over \longrightarrow 8{S^{2 - }} + 4{S_2}O_3^{2 - } + 24{H_2}O$
$2{S_8} + 24O{H^ - }\buildrel {} \over \longrightarrow 8{S^{2 - }} + 4{S_2}O_3^{2 - } + 12{H_2}O$
or ${S_8} + 12O{H^ - }\buildrel {} \over \longrightarrow 4{S^2} + 2{S_2}O_3^{2 - } + 6{H_2}O$ .... (i)
On comparing (i) with
${S_8} + aO{H^ - }(aq)\buildrel {} \over \longrightarrow b{S^2}(aq) + c{S_2}O_3^{2 - } + d{H_2}O$
We get, a = 12; b = 4; c = 2; d = 6
2021
Q344
JEE Advanced
MSQ
14 Mar 2026
The correct statement(s) related to oxoacids of phosphorous is(are)
A.
Upon heating, H3PO3 undergoes disproportionation reaction to produce H3PO4 and PH3.
B.
While H3PO3 can act as reducing agent, H3PO4 cannot.
C.
H3PO3 is a monobasic acid.
D.
The H atom of P-H bond in H3PO3 is not ionizable in water.
2021
Q345
AP-EAPCET
MCQ
20 May 2026
$\mathrm{H}_3 \mathrm{BO}_3$ or $\mathrm{B}(\mathrm{OH})_3$ is considered as an acid because its molecule
A.
combines with proton from water molecule
B.
accepts $\mathrm{OH}^{-}$ from water, releasing a proton
C.
contains replaceable $\mathrm{H}^{+}$ ion
D.
can donate proton easily
2021
Q346
AP-EAPCET
MCQ
20 May 2026
Xenon best reacts with
A.
neutral atoms
B.
most electronegative elements
C.
most electropositive elements
D.
transition elements
2021
Q347
AP-EAPCET
MCQ
20 May 2026
The correct order of acidic character of the following is
A.
$\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{Te}$
B.
$\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}$
C.
$\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{O}$
D.
$\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{O}$
2021
Q348
AP-EAPCET
MCQ
20 May 2026
In the following reactions (i) and (ii), the number of moles of chlorine gas released respectively are
(i) $\mathrm{MnO}_2+4 \mathrm{HCl} \longrightarrow$
(ii) $\mathrm{KMnO}_4+16 \mathrm{HCl} \longrightarrow$
A.
1 and 4
B.
1 and 5
C.
2 and 5
D.
2 and 4
2021
Q349
AP-EAPCET
MCQ
20 May 2026
What would be the product of following reaction?
$\mathrm{SiCl}_4 \stackrel{\text { Excess of } \mathrm{H}_2 \mathrm{O}}{\longrightarrow} \text { ? (Major product) }$
A.
$\mathrm{SiCl}_3(\mathrm{OH})$
B.
$\mathrm{Si}(\mathrm{OH})_4$
C.
$\mathrm{SiCl}_2(\mathrm{OH})_2$
D.
$\mathrm{SiCl}_4$ (no reaction)
2021
Q350
AP-EAPCET
MCQ
20 May 2026
Identify (P) and (Q) in the following reaction.
A.
$P:\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}, \quad Q:\left(\mathrm{CH}_3\right)_3 \mathrm{SiOH}$
B.
$P:\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2, Q:\left(\mathrm{CH}_3\right)_2 \mathrm{Si}(\mathrm{OH})_2$
C.
$P:\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2, \quad Q:\left(\mathrm{CH}_3\right)_2 \mathrm{Si}(\mathrm{OH}) \mathrm{Cl}$
D.
$P:\left(\mathrm{CH}_3\right)_2 \mathrm{SiCl}_2, Q:\left(\mathrm{CH}_3\right)_2 \mathrm{SiO}$
