4. Which one of the following is a TRUE statement on buffer solutions? 10. [A]. fol The pH changes slightly on addition of small quantities of strong acid or strong base The pH remains unchanged on addition of small-quantities of strong acid or strong base. [C]. The pH increases on addition of an acid. The pH decreases on addition of an acid. Which one of the followinsg molecules CE [B). IA IB IC ID 11 5. will exhibit optical isomerism? IAL CH:CH;CH=CHCH, 1B) CH,CH;CH-CH: (C) [Cr(NH)k]' IA [D]. CH,CH;CH(CH)COOH [DJ. ste 6. Identify the carboxylic acid and alcohol trom which the following ester was synthesized. 1B pro IC CH2 CH act CH3 O CH2 [A). CH,CO;H and CH,CH,OH [B]. CH;CO:H and CH)CH CH,OH CH,CH,CO1 and CH: CH,OH CH;CH CO:H and C1.CH2CH0H [D Qu ty IDJ. O=U
4. Which one of the following is a TRUE statement on buffer solutions? 10. [A]. fol The pH changes slightly on addition of small quantities of strong acid or strong base The pH remains unchanged on addition of small-quantities of strong acid or strong base. [C]. The pH increases on addition of an acid. The pH decreases on addition of an acid. Which one of the followinsg molecules CE [B). IA IB IC ID 11 5. will exhibit optical isomerism? IAL CH:CH;CH=CHCH, 1B) CH,CH;CH-CH: (C) [Cr(NH)k]' IA [D]. CH,CH;CH(CH)COOH [DJ. ste 6. Identify the carboxylic acid and alcohol trom which the following ester was synthesized. 1B pro IC CH2 CH act CH3 O CH2 [A). CH,CO;H and CH,CH,OH [B]. CH;CO:H and CH)CH CH,OH CH,CH,CO1 and CH: CH,OH CH;CH CO:H and C1.CH2CH0H [D Qu ty IDJ. O=U
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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Question
Answer Q4, 5, 6
![la)
The two solutions have the same p
[A]
Cle - C te
[B).
The concentration (mol dm) of the
original (undiluted) sodium carbonate solution is
(A) 0.02 x 28 [B] 0.05 x 28 x 250
(C) 0.05 x 28 x10 [D] 0.25 x 14
What is the systematic name for the
following compound?
CH;-CH2
CH-CH2-C-CH2-CH3
H3C
3-methylheptan-5-one
value.
C + aq - C)
2 Clae + Clp)
[D.
9.
Clz0) - Cl8)
Which one of the following is a TRUE
4.
statement on buffer solutions?
[A].
small quantities of strong acid or strong base
The
10.
The pH changes slightly on addition of
[B).
of small-quantities of strong acid or strong base.
[C).
{D)
pH
remains unchanged on addition
The pH increases on addition of an acid
The pH decreases on addition of an acid.
Which one of the following motecules
[A]
S-ethylhexan-3-one
5-methylheptan-3-one
2-ethylhexan-4-one
A racemic mixture is
5.
will exhibit optical isomerism?
CH:CH,CH-CHICH,
CH;CH;CH-CHs
[D]
1.
of
two
mixture
[C).
[DJ.
An
equimolar
CH,CH-CH(CH)COOH
Identify the carboxylic acid and alcohol
trom which the following ester seas synthesizcd.
stereoisoniers
[B).
proportion
6.
A pair of enantiomers mixed in equal
An equimolar mixture of two uptically
CH2
CH
active compounds
CH3
CH2
[D).
A mixture of any two optical isomers.
Questions 12-14 concern the following bond
CH,CO:H and CH,CH,OH
CH,CO:H and CH,CH,CH2OH
CH,CH,COland CI1: CH:OH
CH;CH CO,H and Cl.CH;CHO1
[A].
[B].
types:
JAJ.
[BỊ.
ionic bond
metallic bond
dative covalent bond with single
ID).
Questions 7-9 are on the procedure below.
covalent bond
covalent bod with r-bund
The bonding in tlhe alloy hrass
(A]|B] [C] [D]
The bonds in buta-1,3-diene
25cm of aquenus sodium
ia an
carbonate (Na,CO) were diluted with water to
250 cm in a volumetric flask. In a titration using
a suitable indicator, 25 cm' of the diluted solution
required 28 cm' of 0.05 mol dm sulphuric acid
(H.SO) at the end point.
experinent
12.
13.
[A] [B] [C] [D]
The bond in a substance with a high
14.
The pH value of the 0.05 mol dm
lattice energy
[A] [B] [C] [D)
Question 15-24
Directives: For cach of the following questions,
one or more of the answers given is (are) correct
Decide which of the answers is (are) correct.
7.
sulphuric acid is most likely to be
[AJ 0.05 [B] 0.5 [C) I (DJ 2
A true statement about the two carbonate
8.
solutions could be
[A].
TRI
Only the diluted solution is hydrolyzed
The rwo solutions have the same
Then choose
concemauUn
B.
[C).
number of moles of sodium carbonate
The two solutions contain the same
If 1,2, only are correct
If 2,3, only are correct
C.
19](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a6d9c67-6f13-49d2-ac4d-2d996f90a88b%2Feda7392b-fcd4-4ba2-803d-005b860f054a%2Fsbvco0j_processed.jpeg&w=3840&q=75)
Transcribed Image Text:la)
The two solutions have the same p
[A]
Cle - C te
[B).
The concentration (mol dm) of the
original (undiluted) sodium carbonate solution is
(A) 0.02 x 28 [B] 0.05 x 28 x 250
(C) 0.05 x 28 x10 [D] 0.25 x 14
What is the systematic name for the
following compound?
CH;-CH2
CH-CH2-C-CH2-CH3
H3C
3-methylheptan-5-one
value.
C + aq - C)
2 Clae + Clp)
[D.
9.
Clz0) - Cl8)
Which one of the following is a TRUE
4.
statement on buffer solutions?
[A].
small quantities of strong acid or strong base
The
10.
The pH changes slightly on addition of
[B).
of small-quantities of strong acid or strong base.
[C).
{D)
pH
remains unchanged on addition
The pH increases on addition of an acid
The pH decreases on addition of an acid.
Which one of the following motecules
[A]
S-ethylhexan-3-one
5-methylheptan-3-one
2-ethylhexan-4-one
A racemic mixture is
5.
will exhibit optical isomerism?
CH:CH,CH-CHICH,
CH;CH;CH-CHs
[D]
1.
of
two
mixture
[C).
[DJ.
An
equimolar
CH,CH-CH(CH)COOH
Identify the carboxylic acid and alcohol
trom which the following ester seas synthesizcd.
stereoisoniers
[B).
proportion
6.
A pair of enantiomers mixed in equal
An equimolar mixture of two uptically
CH2
CH
active compounds
CH3
CH2
[D).
A mixture of any two optical isomers.
Questions 12-14 concern the following bond
CH,CO:H and CH,CH,OH
CH,CO:H and CH,CH,CH2OH
CH,CH,COland CI1: CH:OH
CH;CH CO,H and Cl.CH;CHO1
[A].
[B].
types:
JAJ.
[BỊ.
ionic bond
metallic bond
dative covalent bond with single
ID).
Questions 7-9 are on the procedure below.
covalent bond
covalent bod with r-bund
The bonding in tlhe alloy hrass
(A]|B] [C] [D]
The bonds in buta-1,3-diene
25cm of aquenus sodium
ia an
carbonate (Na,CO) were diluted with water to
250 cm in a volumetric flask. In a titration using
a suitable indicator, 25 cm' of the diluted solution
required 28 cm' of 0.05 mol dm sulphuric acid
(H.SO) at the end point.
experinent
12.
13.
[A] [B] [C] [D]
The bond in a substance with a high
14.
The pH value of the 0.05 mol dm
lattice energy
[A] [B] [C] [D)
Question 15-24
Directives: For cach of the following questions,
one or more of the answers given is (are) correct
Decide which of the answers is (are) correct.
7.
sulphuric acid is most likely to be
[AJ 0.05 [B] 0.5 [C) I (DJ 2
A true statement about the two carbonate
8.
solutions could be
[A].
TRI
Only the diluted solution is hydrolyzed
The rwo solutions have the same
Then choose
concemauUn
B.
[C).
number of moles of sodium carbonate
The two solutions contain the same
If 1,2, only are correct
If 2,3, only are correct
C.
19
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