30sec
Among the following, the aromatic compounds are:
[ Unto
a- e-
cyclic
Resonance
plan as
Choose the correct answer from the following options:
A) a, b and c only
B) b, c and d only
C) b and c only
D) a and b only
MEET Test
Ans:
8 g of NaOH is dissolved in 18 g of H2O. Mole fraction of
NaOH in solution and molality (in mol kg-1) of the
✗
solution respectively are;
NaOH
A) 0.2, 22.20
C) 0.167, 11.11
←
-_nNa0H_
NNa0HtMHz0
B) 0.2, 11.11
D) 0.167, 22.20
=
-
m=I÷=¥÷,=¥¥ˢ
÷+¥
Wsolvent
=
2¥
:
=
*
=
:÷
Ans:
( Tetrahedral) Sps
payt
( octahedral)
polo
8. The structure of PCI5 in the solid state is:
%
A)
B)
C)
D)
_
-
Tetrahedral [PCI4]+ and octahedral [PCI6]Square planar [PCI4]+ and octahedral [PCI6]Square pyramidal
Trigonal bipyramidal
Sp3dˢ
Ans:
¥:
¥:
The products “A” and “B” formed in above reactions are
a
Ans:
A hydrated solid X on heating initially gives a monohydrated compound Y. Y
upon heating above 373 K leads to an anhydrous white powder Z. X and Z,
respectively, are:
149203.101120 A- N'
✓
A)
B)
C)
D)
Washing soda and soda ash
Baking soda and dead burnt plaster
Washing soda and dead burnt plaster
Baking soda and soda ash
9203
H2O
t.is
1119203
Soda
ash
Ans:
The difference between ∆H and ∆U (∆H - ∆U), when the combustion
of one mole of heptane (I) is carried out at a temperature T, is equal
to:
AH
DUTANGRT
AH
-AU=AngRT
-_
A) -4 RT
✓
C) 4RT
(
7h16
(e)
B) -3 RT
D) 3 RT
1- 1102
→
(g)
Ang
7-
Coz
(g)
+ 8h20
(e)
Ans:
Amongst LiCI, RbCI, BeCI2 and MgCI2 the compounds with the greatest
and the least ionic character, respectively are:
-
-
A) LiCI and RbCI
B) RbCI and BeCI2
eC) MgCI2 and=
BeCI2
D) RbCI and MgCI2
Li
⑤
mg
R④
Ans:
The following mechanism has been proposed for the reaction of NO with
*
Br2 to form NOBr:
NO(g) + Br2(g) ⇌ NOBr2(g)
K [ NO Brz ] [ No]
NOBr2 (g) + NO (g) → 2NOBr (g) rate
If the second step is the rate determining step, the order of the
reaction with respect to NO(g) is
=%%%→☐
=
rate
A) 3
C) 1
B) 2
D) 0
=
K
[ No ] [ ☐ E) [No ]
=l
[ Brig
'
Ans:
The increasing order of the acidity of the following carboxylic acids is:
-
-
m
> IV
Noz
I >
A) III < II < IV < I
✓
B) I < III < II < IV
C) IV < II < III < I
D) II < IV < III < I
IV
>
11 >
111
Ans:
-30¥
Match the refining methods (Column I) with metals (Column II)
-
MO
✓
t
-
-
-
Ni
→
Co
Ans:
mÉ
The shortest wavelength of H atom in the Lyman series is 𝜆1. The
longest wavelength in the Balmer series is He+ is:
A)
C)
✓
36𝜆1
5
9𝜆1
5
B)
D)
=R✗X×É
=
Jg
=rcÑ(÷
÷
,
=
R
(2)
g- Xi
)
2( ¥ ¥ )
-
¥=r× (%)
"
=
¥
•
¥
,
5¥
=
2
5𝜆1
9
27𝜆1
5
-
Ans:
n
✓
¥
↳ 2 Chores
1,3
butadiene
3. In a multi-electron atom, which of the following orbitals described
by the three quantum members will have the same energy in the
absence of magnetic and electric fields?
1
a. n = 1, I = 0, m = 0
(ntl ) same
2
b. n = 2, I = 0, m = 0
c. n = 2, I = 1, m = 1
3
d. n = 3, I = 2, m = 1
5
e. n = 3, I = 2, m = 0
s
-
0
A) d and e
-
C) b and c
B) c and d
D) a and b
Ans:
The correct order of the ionic radii of O2-, N3-, F-, Mg2+, Na+ and AI3+
is
A)
B)
C)
D)
N3- < O2- < F- < Na+ < Mg2+ < AI3+
AI3+ < Na+ < Mg2+ < O2- < F- < N3AI3+ < Mg2+ < Na+ < F- < O2- < N3N3- < F- < O2- < Mg2+ < Na+ < AI3+
A
µ
-3
> N >
>
c
0-2 > f-
>
Nat >
Ñg
>
AP
Ans:
%⑦
DUCA
=
ACA
+
AUAB=qA☐t WAD
NCA
=
An ideal gas undergoes a cyclic process as shown in Figure
AUAB
+
BUBO
C- 3) f- 5)
+
+
AUCA
Duca
=
2
-5
=-3
0
-0
-
AUcn
∆UBC = -5 kJ mol-1, qAB = 2 kJ mol-1
WAB = -5 kJ mol-1, WCA = 3 kJ mol-1
Heat absorbed by the system during process CA is:
A) -5 kJ mol-1 B) +5 kJ mol-1
C) 18 kJ mol-1 D) -18 kJ mol-1
9cm
=
DU
=
-
W
8-3
=±
Ans:
33. The rate constant of a zero order reaction is 2.0 × 10-2 mol L-1
s-1. If the concentration of the reactant after 25 seconds is 0.5 M.
What is the initial concentration?
-
-
Ao
A) 0.5 M
C) 12.5 M
B) 1.25 M
D) 1.0 M
Ao
Ao
At
-
-
-
0.5
0.5
=
=
=
Kt
2×10-2×25
0.5
A◦m]
Ans:
M
7. The group of molecules having identical shape is:
A)
B)
C)
D)
v
PCI5, IF5, XeO2F2
BF3, PCI3, XeO3
SF4, XeF4, CCI4
CIF3, XeOF2, XeF3+
-
f
f
→
f
⑤
f-
↑;
-
r
-
Ans:
22. The increasing order of basicity for the following
intermediates is (from weak to strong)
I > Iv > 11 >
A)
B)
C)
✓
D)
(iii) < (i) < (ii) < (iv) < (v)
(v) < (i) < (iv) < (ii) < (iii)
(v) < (iii) < (ii) < (iv) < (i)
(iii) < (iv) < (ii) < (i) < (v)
111 >
µ
Ans:
⑥ For the following reactions, equilibrium constants are given
14.
2
S(s) + O2(g) ⇌ SO2(g); K1 = 1052
2S(s) + 3O2(g) ⇌ 2SO3(g); K2 = 10129
10129
The equilibrium constant for the reaction,
2SO2(g) + O2(g) ⇌ 2SO3(g) is:
10-104
(10-52)
/ 29
A) 10154
C) 1025
B) 10181
D) 1077
go
-
toy
Ans:
9. In which of the following processes, the bond order has increased and
paramagnetic character has changed to =
diamagnetic?
A) NO → NO+
C) O2 → 𝑂2+
B) N2 → 𝑁2+
D) O2 → 𝑂22−
Ans:
10. Van der Waals equation for a gas is stated as,
𝑃=
𝑛𝑅𝑇
𝑉−𝑛𝑏
−𝑎
𝑛 2
𝑉
This equation reduces to the perfect gas equation, 𝑃 =
A)
v
Temperature is sufficient high and pressure is low
B) Temperature is sufficient low and pressure is high
C) Both temperature and pressure are very high
D) Both temperature and pressure are very low
Hight
𝑛𝑅𝑇
𝑉
where,
loup
Ans:
21. Which of the following pairs of compounds are
positional isomers?
✓
Ans:
%:
13. Identify the correct statement regarding a spontaneous process:
=
A) Lowering of energy in the process is the only criterion for spontaneity
B) For a spontaneous process in an isolated system, the change in
entropy is positive
DG =D H TAS
C) Endothermic processes are never spontaneous
D) Exothermic processes are always spontaneous
re
I
✓
-
-
+re
Ans:
31.Λ0𝑚 for NaCI, HCI and NaA are 126.4, 425.9 and 100.5 S cm2mol-1,
✗
respectively. If the conductivity of 0.001 M HA is 5 × 10-5 S cm-1,
degree of dissociation of HA is:
nooHA
-
A) 0.50
C) 0.125
B) 0.25
D) 0.75
ÑHCI
=
AFA
=
+
^%aA
42509 +100.5
-
Fnac
,
126 y
-
-
•
Am
=
kximooo-sxj.io?yI.-
^
⑤
HA
≈ Yoo
✗
=^ñm=
=
=
's
0.12€
Ans:
18. The temporary hardness of a water sample is due to compound X.
Boiling this sample converts X to compound Y. X and Y, respectively, are:
←_=
A)
B)
C)
D)
Mg (HCO3)2 and Mg(OH)2
Ca (HCO3)2 and Ca(OH)2
Mg (HCO3)2 and MgCO3
Ca(HCO3)2 and CaO
←
cac@
mgcohlz
Caw 3
Ans:
46. The major product of the following reaction is:
(tm )
↑↑
∅
Ans:
16. An acidic buffer is obtained on mixing:
A)
B)
C)
D)
100 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH✗
100 mL of 0.1 M HCI and 200 mL of 0.1 M NaCI✗
100 mL of 0.1 M CH3COOH and 200 mL of 0.1 M NaOH
100 mL of 0.1 M HCI and 200 mL of 0.1 M CH3COONa
-
-
-
-
20
Lo
≤ tycoon
⑧
+
Nacl
Ans:
17. Consider the reaction:
→
H2SO3(aq) + Sn4+ (aq) + H2O(I) → Sn2+ (aq) + 𝐻𝑆𝑂4− + 3H+ (aq)
Which of the following statements is correct?
-
×
A) Sn4+ is the oxidizing agent because it undergoes oxidation
B) Sn4+ is the reducing agent because it undergoes oxidation
C) H2SO3 is the reducing agent because it undergoes oxidation
D) H2SO3 is the reducing agent because it undergoes reduction
I
Ans:
44. Arrange the following Cobalt complexes in the order of increasing Crystal Field
Stabilization Energy (CFSE) value. Complexes:
[𝐶𝑜𝐹6 ]3− , [𝐶𝑜(𝐻2 𝑂6 ]2+ , [𝐶𝑜(𝑁𝐻3 )6 ]3+
𝐵
𝐶
𝐴
3+
Choose the correct option:
𝑎𝑛𝑑 [𝐶𝑜(𝑒𝑛)3 ]
𝐷
en
A)
B)
C)
D)
A<B<C<D
B<A<C<D
B<C<D<A
C<D<B<A
>
☐>
NH }
c>
>
H2O if
B> A
Ans:
𝑅𝑒𝑑𝑢𝑐𝑡𝑖𝑜𝑛
𝐴𝑔𝐶𝑁
→
45. C2H5Br
𝑋
𝑌, 𝐻𝑒𝑟𝑒 𝑌 𝑖𝑠
𝐻𝑔
𝑍𝑛 −
𝐻𝐶𝐼
A)
✓
B)
C)
D)
Ethyl methyl amine
n-propylamine
Isopropylamine
Ethylamine
CZHSNC
CzH 5- N -913
I
Is
ethyl
methyl
amie
.
Ans:
30. Freezing point of a aqueous solution is (-0.186) 0C. Elevation of
boiling point of the same solution is Kb = 0.512 0C, Kf = 1.860C,
find the increase in boiling point.
→
gB) 0.0512
A) 0.186 0C
C) 0.092 0C
Atb
0C
D) 0.2372 0C
'
:-# ¥
FEE ; ×*
=
IAT
=
=
Kb
H
KfrT
/ OH
=
0
•
512
2=0.0511
Ans:
20. Which one of the following is the correct statement?
A) Boric acid is a protonic acid
B) Beryllium exhibits coordination number of six
C) Chlorides of both beryllium and aluminum have
bridged structures in solid phase
D) B2H6.2NH3 is known as ‘inorganic benzene’
-
-
Bec /
z
to
e-
def
At Cb
←
Ans:
23. Consider the acidity of the carboxylic acids:
1. PhCOOH
273>4 > I
2. O-NO2C6H4COOH
3. P-NO2C6H4COOH
4. M-NO2C6H4COOH
Which of the following order is correct?
A) 2 > 4 > 1 > 3
C) 1 > 2 > 3 > 4
B) 2 > 4 > 3 > 1
D) 2 > 3 > 4 > 1
✓
Ans:
32. Given:
𝐸 0 𝐹𝑒 3+ /𝐹𝑒 = -0.036V,
=
-0.09
-10.8
𝐸 0 𝐹𝑒 2+ /𝐹𝑒 = -0.439V ✗ 2
The value of standard electrode potential for the change,
Fe3+ (aq) + e- → Fe2+ (aq) will be: @ ✗ I
=
A) 0.38 V
C) -0.270 V
B) 0.770 V
✗
D) -0.072 V
Ans:
25. The major product (Y) in the following reaction is:
c-
C
É
-
g=c
÷
-
C
-
C
-
C
i
C
C-
d-
421-15
g-
a
c-
✗
É=É%
Ans:
27. Global warming is due to increase of:
A)
B)
C)
D)
Methane and nitrous oxide in atmosphere
Methane and CO2 in atmosphere
Methane and O3 in atmosphere
Methane and CO in atmosphere
t
Ans:
I
2
28. The ratio of number of atoms present in a simple cubic, body
centered cubic and face centered cubic structure are, respectively:
A) 8 : 1 : 6
C) 4 : 2 : 1
I
B) 1 : 2 : 4
D) 4 : 2 : 3
Ans:
29. A binary liquid solution is prepared by mixing n-heptane and
ethanol. Which one of the following statements is correct regarding the
behaviour of the solution?
=
A) The solution is non-ideal, showing - ve deviation from Raoult’s
Law
B) The solution is non-ideal, showing + ve deviation from Raoult’s
Law
C) n–Heptane shows + ve deviation while ethanol shows -ve
deviation from Raoult’s Law
D) The solution formed is an ideal solution
-
-
Ans:
47. The major aromatic product C in the following reaction
sequence will be:
É
F
(A)
✗
◦
¥
KI CHO
Ans:
41. Lanthanoid contraction is caused due to
A) The same effective nuclear charge from Ce to Lu
B) the imperfect shielding on outer electrons by 4f electrons from the
nuclear charge
C) The appreciable shielding on outer electrons by 4f electrons from
the nuclear charge
D) The appreciable shielding on outer electrons by 5d electrons from
the nuclear charge
Ans:
42. The IUPAC name of the complex [Pt (NH3)2CI(NH2CH3)]CI is:
A)
B)
C)
D)
Diamminechlorido (methanamine) platinum (II) chloride
Diammine (methanamine) chloride platinum (II) chloride
Diamminechloridio (aminomethane) platinum (II) chloride
Bisammine (methanamine) chloride platinum (II) chloride
◦
Ans:
50. The major product of the following chemical reaction is:
CH z CH z
413
A) CH3CH2CH3
C) CH3CH2CHO
t
B) CH3CH2CH2OH
D) (CH3CH2CO)2O
-
CH
-
z
-
OH
-
013
-4
-412
-
É
-
n
Ans:
1- ↑
1- ↓
36. Adsorption of a gas follows Freundlich adsorption isotherm. If x is the
mass of the gas adsorbed on mass m of the adsorbent, the correct plot of
versus p is:
eithermic
=
↓
𝑥
𝑚
Ans:
38. Match List-I with List-II
+5
Hzpoy
-
-
113%33
Ans:
[
Nacl 03
39. In the following reactions, products (A) and (B), respectively, are:
NaOH + CI2 → (A) + side products (hot and conc.)
Ca(OH)2 + CI 2→ (B) + side products (dry)
Caco
A) NaCIO3, and Ca(OCI)2
-
B) NaCIO3 and Ca(CIO3)2
C) NaOCI and Ca(OCI)2
D) NaOCI and Ca(CIO3)2
cld
Ans:
40. The correct order of magnetic moments (spin only values in B.M.)
among the following is
gg
A) [Fe(CN)6]4- > [MnCI4]2- > [CoCI4]2B) [MnCI4]2- > [Fe(CN)6]4- > [CoCI4]22- > [CoCI ]2- > [Fe(CN) ]4Fet
C)
[MnCI
]
4
4
6
µ
D) [Fe(CN)6]4- > [CoCI4]2- > [MnCI4]2(Atomic nos. :Mn = 25, Fe = 26, Co = 27)
•
3%sfL→
Pang
Ans:
43. One mole of the complex compound Co(NH3)5CI3, gives 3 moles of
ions on dissolution in water. One mole of the same complex reacts with
two moles of AgNO3 solution to yield two moles of AgCI (s). The structure
of the complex is
-
A)
B)
✗C)
-D)
[Co(NH3)3CI3]. 2 NH3
[Co(NH3)4CI2] CI.NH3
[Co(NH3)4CI] CI2.NH3
[Co(NH3)5CI] CI2
-
÷
-
Ans:
49. In the following reactions, products A and B are
¥
③
61
OH
-
E
Ans:
15. The first and second dissociation constants of an acid H2A are
1.0 × 10-5 and 5.0 × 10-10 respectively. The overall dissociation
constant of the acid will be
Ht + HA
K HZA
-
,
A) 0.2 × 105
C) 5.0 × 1015
-
B) 5.0 × 10-5
D) 5.0 × 10-15
-
K2
HA
Ht
+ A
-2
④=2H++A-Z
Ans:
35. For the equilibrium, A(g) ⇌ B(g), ∆H is -40 kJ/mol. If the ratio fo the
activation energies of the forward (Ef) and reverse (Eb) reaction is
A)
B)
C)
D)
Ef = 80 kJ/mol; Eb = 120 kJ/mol
Ef = 60 kJ/mol; Eb = 100 kJ/mol
Ef = 30 kJ/mol; Eb = 70 kJ/mol
Ef = 70 kJ/mol; Eb = 30 kJ/mol
2
3
then:
Ans: