Pb + 2e" Pb E° = -0.13 V "Aga) +e Ag) E° = +0.80 24 The c.m.f of the cell is (A) +0.93 V (C)-0.67 V (B) 40.67 V -0.93 V (D)

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer Q24, 25, 26

Decrease
Increases
29
In the reaction between aqueous KI and
aqueous peroxodisulphate,S,0 ions, iron (I1)
ions can be used as a catalyst, What type of
catalysis is this?
(A)
Ag
Heterogeneous catalyst
Homogeneous catalyst
Autocatalysis
Inhibition catalysis
(B)
(C)
(D)
30 As the atomic number increases across period
Pb + 2e Pb(
"Agag) +e Ag)
The cm fof the cell is
E° = -0.13 V
3 of the periodic table
The electronegativity decreases
The electron affinity decreases
E° = +0.80
(A)
(B)
(C)
(D)
31 Which of these exist as giant molecular
24
The atomic radius decreases
(B)
+0.67 V
The e m.f of the cell can be measured by
-0.93 V
e (A)
(C)-0.67 V
25
+0.93 V
The effective nuclear charge decreases
(D)
tiSing
(A.)
(B.)
SLI UCtures
(A)
(C)
32 Which of the carbonates below are NOT
Be and Mg
C and P
(B)
(D)
N; and Ss
C and Al
a low-resistance voltmeter
a high resistant voltmeter
a galvanometer
a conductivity meter
Ilow will the em.f vary upon the additiot
(C)
(D)
decomposed by heat?
LiCO, and NazCO:
CACO, and LICO:
CACO, and K2CO;
NazCO, and K2CO,
26
(B)
of more water to the left hand electrode?
(A)
(B)
(C)
(D)
33 Arrange
the
following oxoacids in order of
Remain the same
Will rise and fall with change in
(C)
increasing acid strength
(D)
HCIO, < HBrO3< HIO:
HBrO< HCIO1<HIO.
LA)
temperature
27
An acid buffer ean be made by mixing
(6)
HIO,<HBrO, <HCIO,
(C)
(D)
34 What is the electronie confīguration of the
element chromum (Z24)
(A) (Ne]4s*3d*
(C)Arj4s'3d$
35 Given the compound potassium
hexacyanoferrate (II). The formula of the
complex ion in the compound is
(A)Fe(CN) (B)Fe(CN);
(C)Fe(CN) (D) Fe(CN),
36 The oxidation state of chromium atoni in the
compound (NH.),Cr2O, is
(A)
17 Consider the compound
cquimolar volume of
(A)
(3)
HBrO< HIO,< HCIO
HCl and NaCl
CH,CO,l and CH.CO-Na
(C)
(D)
28
NH.CI and NH1
CH,CO;H and NH.CI
For the reaction X+ Y Z
A series of experiments was carried out and the
following results obtained
(B) [Ar]4s 3d
(D)(Ar]3d°
Expt [X]
No
Initial rate
[X]
mol dm3
0.4
mol dm
0.5
2.0
mol dm's
4 x 10-3
6 x 10-3
8x 10
0.3
+4
(B)+6 (C)
+7 (D)+8
3
1.0
0.4
The overall order of the reaction is
(A) I
(D) 3
hybridisation has the carbon atom marked with
an asterisk (*) urndergone
(B)
(C)
メニル
12
メ+64)ニ-3
メS
カー +×
Transcribed Image Text:Decrease Increases 29 In the reaction between aqueous KI and aqueous peroxodisulphate,S,0 ions, iron (I1) ions can be used as a catalyst, What type of catalysis is this? (A) Ag Heterogeneous catalyst Homogeneous catalyst Autocatalysis Inhibition catalysis (B) (C) (D) 30 As the atomic number increases across period Pb + 2e Pb( "Agag) +e Ag) The cm fof the cell is E° = -0.13 V 3 of the periodic table The electronegativity decreases The electron affinity decreases E° = +0.80 (A) (B) (C) (D) 31 Which of these exist as giant molecular 24 The atomic radius decreases (B) +0.67 V The e m.f of the cell can be measured by -0.93 V e (A) (C)-0.67 V 25 +0.93 V The effective nuclear charge decreases (D) tiSing (A.) (B.) SLI UCtures (A) (C) 32 Which of the carbonates below are NOT Be and Mg C and P (B) (D) N; and Ss C and Al a low-resistance voltmeter a high resistant voltmeter a galvanometer a conductivity meter Ilow will the em.f vary upon the additiot (C) (D) decomposed by heat? LiCO, and NazCO: CACO, and LICO: CACO, and K2CO; NazCO, and K2CO, 26 (B) of more water to the left hand electrode? (A) (B) (C) (D) 33 Arrange the following oxoacids in order of Remain the same Will rise and fall with change in (C) increasing acid strength (D) HCIO, < HBrO3< HIO: HBrO< HCIO1<HIO. LA) temperature 27 An acid buffer ean be made by mixing (6) HIO,<HBrO, <HCIO, (C) (D) 34 What is the electronie confīguration of the element chromum (Z24) (A) (Ne]4s*3d* (C)Arj4s'3d$ 35 Given the compound potassium hexacyanoferrate (II). The formula of the complex ion in the compound is (A)Fe(CN) (B)Fe(CN); (C)Fe(CN) (D) Fe(CN), 36 The oxidation state of chromium atoni in the compound (NH.),Cr2O, is (A) 17 Consider the compound cquimolar volume of (A) (3) HBrO< HIO,< HCIO HCl and NaCl CH,CO,l and CH.CO-Na (C) (D) 28 NH.CI and NH1 CH,CO;H and NH.CI For the reaction X+ Y Z A series of experiments was carried out and the following results obtained (B) [Ar]4s 3d (D)(Ar]3d° Expt [X] No Initial rate [X] mol dm3 0.4 mol dm 0.5 2.0 mol dm's 4 x 10-3 6 x 10-3 8x 10 0.3 +4 (B)+6 (C) +7 (D)+8 3 1.0 0.4 The overall order of the reaction is (A) I (D) 3 hybridisation has the carbon atom marked with an asterisk (*) urndergone (B) (C) メニル 12 メ+64)ニ-3 メS カー +×
What is the pti of 01 mol dm 'sulphuric
CH,COOH > CH,CH,011 > CH,COCH, can be
accounted for principally by
20
acid
(A)
2.0 (B) 01 (C) 10
(A)
(B)
(C)
(D)
15
A decrease in van-der Waal's forces
(D) 0.7
Strong covalent bonds
Dipole-dipole interactions
A decrease in hydrogen bonding
Given the following ionic radii in
nanometers (nm): Cl-0.180: Br-0 195, 1-0.215:
Ag'=0.065; Na'-0.102. Which pair of ions will
form an ionic compound with the highest covalent
Liquid water "molecules ionises
follows H,0(a) Hag) + OHag)
expression for ionic product of water is
as
21
The
(A)
kw
(B)
kw = [H ][OH ]
%3D
(C)
kw = [H,0][OH|
character?
(D)
kw = [H*][OH |
(A)
(C)
Ag' and CI (B)
Ag' and I
Which is the most polar molecule of the
Na" and CI
The conjugate acid of ethylamine from the
equation:
CH,CH,NH, + HClan) CH,CH,NI + C
(D) Na' and Br
22
16
following:
CH.Br
(A)
(C) CH CI
CHI
CH
Wlhich of the followmg represent the dot- (BCH,CH,NH
and cross diagram of the ilowng hydrogen (OCH,CH,NIH
(B)
(D)
(A)CH,CH, NH,
17
carbonate ion, HCO;
(D)CH,CH,NH CI
23
The titration curve ef aqueous 1HeversIS
aqueous ammonia is shown below
HO: C: i C:
H C.
HO C:
18
Irom the pair of liquid behs thonse the
15
volume uf tcul adiled
pair that would likeiy forman ideal selon
(A)
(B)
(C)
(D)
19
20
CHI6 and CHCI,
CHCI and CoHi4
There is only a small change in pll with the
addition of the strong acid in the zone XY because
CiH16 and CaHis
CHSCI and CH,OH
Raoult's law applied to ideal solutions An
(A.) XY is the buffer zone
(B.) It is the titration of a strong acid and a weak
ideal solution would have one of the following
characteristics:
base
(C.) The indicator used is not appropriate
(A).
standard conditions.
Mixes completely with any liquid under
(D.) The end point had been attained
(B)
volume or heat change on mixing the components
Question 24-26. Given the following diagram of
a cell
Components have similar bonds, no
The tntal vanour preceure nf the mixnra
WIII De nigner than predicted by Raouit s taw
(D)
be lower than that predicted by Raoult's law
Total vapour pressure of the mixture will
Transcribed Image Text:What is the pti of 01 mol dm 'sulphuric CH,COOH > CH,CH,011 > CH,COCH, can be accounted for principally by 20 acid (A) 2.0 (B) 01 (C) 10 (A) (B) (C) (D) 15 A decrease in van-der Waal's forces (D) 0.7 Strong covalent bonds Dipole-dipole interactions A decrease in hydrogen bonding Given the following ionic radii in nanometers (nm): Cl-0.180: Br-0 195, 1-0.215: Ag'=0.065; Na'-0.102. Which pair of ions will form an ionic compound with the highest covalent Liquid water "molecules ionises follows H,0(a) Hag) + OHag) expression for ionic product of water is as 21 The (A) kw (B) kw = [H ][OH ] %3D (C) kw = [H,0][OH| character? (D) kw = [H*][OH | (A) (C) Ag' and CI (B) Ag' and I Which is the most polar molecule of the Na" and CI The conjugate acid of ethylamine from the equation: CH,CH,NH, + HClan) CH,CH,NI + C (D) Na' and Br 22 16 following: CH.Br (A) (C) CH CI CHI CH Wlhich of the followmg represent the dot- (BCH,CH,NH and cross diagram of the ilowng hydrogen (OCH,CH,NIH (B) (D) (A)CH,CH, NH, 17 carbonate ion, HCO; (D)CH,CH,NH CI 23 The titration curve ef aqueous 1HeversIS aqueous ammonia is shown below HO: C: i C: H C. HO C: 18 Irom the pair of liquid behs thonse the 15 volume uf tcul adiled pair that would likeiy forman ideal selon (A) (B) (C) (D) 19 20 CHI6 and CHCI, CHCI and CoHi4 There is only a small change in pll with the addition of the strong acid in the zone XY because CiH16 and CaHis CHSCI and CH,OH Raoult's law applied to ideal solutions An (A.) XY is the buffer zone (B.) It is the titration of a strong acid and a weak ideal solution would have one of the following characteristics: base (C.) The indicator used is not appropriate (A). standard conditions. Mixes completely with any liquid under (D.) The end point had been attained (B) volume or heat change on mixing the components Question 24-26. Given the following diagram of a cell Components have similar bonds, no The tntal vanour preceure nf the mixnra WIII De nigner than predicted by Raouit s taw (D) be lower than that predicted by Raoult's law Total vapour pressure of the mixture will
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