Chemistry Practice Tests 2

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Chemistry Practice Test 2

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1 / 100

Category: Chemistry Ch 9 Class 12

Free radical reactions take place in the presence of ______?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

A) Heat

B) Sunlight

C) Catalyst

D) Oxygen

2 / 100

Category: Chemistry Ch 9 Class 12

Which derivative of benzene shows maximum reactivity in electrophilic substitution reactions?

UHS 2019
Chemistry
Hydrocarbons
Elimination Tool:

A) Benzoic acid

B) Methyl benzene

C) Benzaldehyde

D) Nitrobenzene

3 / 100

Category: Chemistry Ch 1 Class 11

Chemical equations do not tell about the ______ because of certain limitations.

PMC Practice 29
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) rate of reaction

B) pressure

C) conditions

D) Both A & C

4 / 100

Category: Chemistry Ch 13 Class 12

Which of the following reagent is required for preparation of acyl chloride (CH3COCl) from ethanoic aicd?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) PCl5

B) POCl3

C) CH3Cl

D) HCl

5 / 100

Category: Chemistry Ch 1 Class 12

Which of following pair has highest conductivity?

Gold, Aluminium

Gold, Tungsten

Silver, Copper

Carbon, Gold

6 / 100

Category: Chemistry Ch 7 Class 11

The heat of a reaction can be calculated by using:

NTS 2010
Chemistry
Thermochemistry
Elimination Tool:

A) Joule's Law

B) Ohm's Law

C) Hess's Law

D) Faraday's Law

7 / 100

Category: Chemistry

Both ionic and covalent bonds are present in:

NUMS Mock 3
Chemistry
Chemical Bonding

A) CH4

B) SO2

C) KCl

D) NaOH

8 / 100

Category: Chemistry Ch 11 Class 11

“The sum of all the exponents to which the molar concentration in terms in the rate equation are raised” defines:

NUMS 2016
Chemistry
Reaction Kinetics
Elimination Tool:

A) Rate of reaction

B) Order of reaction

C) Type of reaction

D) Product of reaction

9 / 100

Category: Chemistry

Q.139 Redox Reaction are actually transfer of

A. Electrons

B. Charges

C. Energy

D. Hydrogen lons

10 / 100

Category: Chemistry Ch 4 Class 11

Viscosity of HF is: c) y d) a) Greater than 1120 b) Smaller than F120 c) Equal to HIO d) Plane of these

Greater than H2O

Smaller than H2O

Equal to H2O

None of these

11 / 100

Category: Chemistry

Q.93 Which element has electronic configuration of [Ar]4s1, 3d5

A. Cu

B. Zn

C. Cr

D. V

12 / 100

Category: Chemistry Ch 4 Class 12

Ligands having two lone pair of electrons for donation to the central transition metal ion are known as:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Polydentate ligands

B) Monodentate ligand

C) Bidentate ligands

D) Hexadentate ligands

13 / 100

Category: Chemistry Ch 9 Class 12

Who rejected vital force theory

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

A) Wohler

B) Berzelius

C) Wallus

D) Lyll

14 / 100

Category: Chemistry Ch 16 Class 12

Which of the following is a secondary pollutant?

CO2

Sulphur Oxide

Nitrogen Oxide

O3

15 / 100

Category: Chemistry Ch 11 Class 11

The change in concentration of reactants or products per unit time is

PMC Sample 3
Chemistry
Reaction Kinetics
Elimination Tool:

A) rate constant

B) reaction speed

C) Rate of a reaction

D) All of these

16 / 100

Category: Chemistry Ch 7 Class 12

Propyl Acetate and valeric acid are which type of isomers

NUMS 2018
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Tautomers

B) Functional

C) Position

D) Metamers

17 / 100

Category: Chemistry Ch 11 Class 12

Which of the following reactions is used for the production of alcohols on industrial scale?

UHS 2019
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Hydrogenation of alkenes

B) Hydration of alkenes

C) Hydrohalogenation of alkenes

D) Hydroxylation of alkenes

18 / 100

Category: Chemistry

Q.101 Strong acid can be involved in a spontaneous reaction which is termed as

A. Addition Reaction

B. Substitution Reaction

C. Neutralization Reaction

D. Reversible Reaction

19 / 100

Category: Chemistry Ch 8 Class 12

Alkanes having five to seventeen carbon atoms per molecule are:

NTS 2013
Chemistry
Hydrocarbons
Elimination Tool:

A) liquids

B) solids

C) gases

D) semi solid wax

20 / 100

Category: Chemistry Ch 6 Class 11

Which of the following has the highest value of electronegativity?

PMC 2020
Chemistry
s and p Block Elements
Chemical Bonding
Elimination Tool:

A) I

B) Br

C) Cl

D) F

21 / 100

Category: Chemistry Ch 7 Class 12

Diethyl ether and n-butanol are:

NUMS 2019 Reconduct
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Position isomers

B) Functional group isomers

C) Chain isomers

D) Tautomers

22 / 100

Category: Chemistry Ch 14 Class 12

How many types of polymerization reactions are there?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

A) 4

B) 2

C) 6

D) 3

23 / 100

Category: Chemistry Ch 7 Class 11

One Calorie is equivalent to:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

A) 0.4184J

B) 41.84 J

C) 4.184 J

D) 418.4 J

24 / 100

Category: Chemistry Ch 11 Class 12

Phenol is a(n) ________ liquid?

PMC Sample 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Dense

B) Hard

C) Deliquescent

D) Intermittent

25 / 100

Category: Chemistry Ch 10 Class 11

The overall positive reduction potential value predicts that process is:

NUMS 2015
Chemistry
Electrochemistry
Elimination Tool:

A) Not feasible

B) Feasible

C) Impossible

D) No indication

26 / 100

Category: Chemistry Ch 10 Class 11

Definition of electrode potential is?

Tendency of metals to form ions when dissolved in 1M solution of its own solution

Tendency of ions to form atoms when dissolved in 1M solution of its metal

Both a and b

None of these

27 / 100

Category: Chemistry Ch 2 Class 12

Which is the paramagnetic oxide of chlorine?

NUMS 2019 Reconduct
Chemistry
s and p Block Elements
Elimination Tool:

A) Cl2O7

B) Cl2O6

C) ClO2

D) ClO4

28 / 100

Category: Chemistry Ch 8 Class 12

Formula of Thionyl chloride is

SCI3

S2Cl2

SOCl2

SOCI3

29 / 100

Category: Chemistry Ch 8 Class 12

The electrophilic reactions of Benzene are:

NTS 2011
Chemistry
Hydrocarbons
Elimination Tool:

A) Halogenation

B) Nitration

C) Sulphonation

D) Alkylation and Acylation

E) All of these

30 / 100

Category: Chemistry Ch 1 Class 11

One mole of Oxygen has number of atoms as compared to one mole of Nitrogen

equal

Half

Double

Quarter

31 / 100

Category: Chemistry Ch 10 Class 11

The electrolyte used in fuel cell is:

NUMS 2019 Reconduct
Chemistry
Electrochemistry
Elimination Tool:

A) KOH

B) NaCl (aq)

C) NaNO3

D) Molten NaCl

32 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the formula of Potassium permanganate?

KMnO4

K2Mn0

KMn02

None of these

33 / 100

Category: Chemistry Ch 5 Class 12

The order of decreasing power as an oxidizing agent is

F2> Br2> Cl2>I2

F2 > O2> Br2 > I2

F2 < O2 < Br2 < I2

F2 < Br2< C12 <I2

34 / 100

Category: Chemistry Ch 5 Class 11

The amount of energy associated with quantum of radiation is directly proportional to:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

A) Photon

B) Wavelength

C) Frequency

D) Velocity

35 / 100

Category: Chemistry Ch 4 Class 11

The properties of liquid crystals are intermediate between crystals and:

PMC Practice 3
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Anisotropic liquids

B) Nematic liquids

C) Isotropic liquids

D) Liquids

36 / 100

Category: Chemistry

Q.108 Temperature and volume in an experiment are part of

A. Surroundings

B. System

C. State of a system

D. All of these

37 / 100

Category: Chemistry Ch 4 Class 11

Increasing the temperature of a liquid will decrease all except:

Surface tension

Density

Viscosity

Vapor pressure

38 / 100

Category: Chemistry Ch 1 Class 11

The atoms of hemoglobin is heavier than H-atoms

PMC Practice 23
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 67,000 times

B) 68,000 times

C) 65,000 times

D) 69,000 times

39 / 100

Category: Chemistry Ch 4 Class 11

Which of the following solids is isotropic?

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Ionic solids

B) Molecular solids

C) Amorphous solids

D) Metallic solids

40 / 100

Category: Chemistry

In alkanes, each carbon has hybridization

NUMS Mock 4
Chemistry
Fundamental Principles of Organic Chemistry

A) sp3

B) sp

C) sp2

D) dsp

41 / 100

Category: Chemistry Ch 12 Class 12

Identify the common name of the following compound:

CH₃CH₂COCH₂OH

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Α-hydroxy-ethyl methyl aldehyde

B) Α-hydroxy-ethyl methyl ketone

C) Β-hydroxy-ethyl methyl ketone

D) Β-hydroxy-ethyl methyl ketone

42 / 100

Category: Chemistry Ch 15 Class 12

The zone where moisture is removed and clay is broken down into Al203, Si02, Fe203 is

Burning zone

Cooling zone

Drying zone

Decomposition zone

43 / 100

Category: Chemistry Ch 2 Class 12

The flame colour of Ca in flame test is:

NUMS 2020
Chemistry
s and p Block Elements
Elimination Tool:

A) Orange red

B) Golden yellow

C) Red

D) Pink

44 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is the correct order of electronegativity (from highest to lowest)?

NTS 2015 SMBBMC
Biology
s and p Block Elements
Chemical Bonding
Elimination Tool:

A) F , O, N , C

B) N, F , O, C

C) C, F, N, O

D) C, F, O, N

45 / 100

Category: Chemistry Ch 1 Class 12

Hydration energy increases with

With high charge density

Distance between nucleus and outer most electron

Size of the atom

None of these

46 / 100

Category: Chemistry Ch 8 Class 12

The major source of unburnt hydrocarbons in the atmosphere is / are:

NUMS 2016
Chemistry
Hydrocarbons
Elimination Tool:

A) Petroleum

B) Natural gas

C) Automobiles

D) Human beings

47 / 100

Category: Chemistry Ch 1 Class 12

Borax exists in nature as:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

A) Na2B4O7.10H2O

B) Na2B4O7.7H2O

C) Na2B4O7.5H2O

D) Na2B4O7.3H2O

48 / 100

Category: Chemistry Ch 6 Class 12

Which metal is not attracted by magnet?

Copper

Zinc

Iron

Both a & b

49 / 100

Category: Chemistry Ch 8 Class 12

In alkanes all carbon atoms are linked by bond

Triple

Single

Double bonds

Alternative

50 / 100

Category: Chemistry Ch 7 Class 12

Which one of them is used as an automobile antifreeze

PMC Sample 1
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Ethanol

B) ethene

C) ethylene glycol

D) propene

51 / 100

Category: Chemistry

Q.106 PV/nRT for an ideal gas is called

A. Expansion factor

B. Depression factor

C. Compressibility factor

D .Diffusion factor

52 / 100

Category: Chemistry Ch 5 Class 11

The maximum possible number of electrons a shell ‘n’ can accommodate is given by:

NTS 2012
Chemistry
Atomic Structure
Elimination Tool:

A) n

B) n2

C) 2n2

D) n3

53 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following elements has six valence electrons?

S

Cd

Fe

0

54 / 100

Category: Chemistry

Q.81 Conjugate base of a weak acid is

A. Weak

B. Strong

C.Unstable

D. None of these

55 / 100

Category: Chemistry

Q.169 The oxidation number of Nickel in [Ni(CO)A] is

A. 2

B. 8

C.6

D.4

56 / 100

Category: Chemistry Ch 7 Class 12

Which of the following is/are organic?

Protein

Carbohydrates

Both a and b

None of these

57 / 100

Category: Chemistry Ch 10 Class 11

Two half cells of a galvanic cell are connected with a salt bridge, the electrons flow from:

Anode to cathode through external circuit

Cathode to anode through external circuit

Anode to cathode through salt bridge

Cathode to anode through salt bridge

58 / 100

Category: Chemistry

A single Chloride free radical can destroy ozone molecules up to:

NUMS Mock 1
Chemistry
Enviormental Chemistry

A) 100,000

B) 10,000

C) 100,0000

D) 1000

59 / 100

Category: Chemistry Ch 13 Class 12

Which one of these is a soluble carbohydrate:

Fructose

Starch

Cellulose

Amylase

60 / 100

Category: Chemistry Ch 10 Class 11

Oxidation state of sulphur in H2SO4?

+2

+6

4

-2

61 / 100

Category: Chemistry Ch 8 Class 11

Which of the following factor(s) affect a reversible chemical reaction in accordance with the Le – Chatelier Principle?

NUMS 2019 Reconduct
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Pressure

B) Temperature

C) Concentration

D) Pressure, concentration and temperature

62 / 100

Category: Chemistry Ch 3 Class 11

1 atmospheric pressure is equal to

1kg/cm2

1.033 kg/cm2

1.1kg/cm2

1.133 kg/cm2

63 / 100

Category: Chemistry Ch 1 Class 11

Which of the following statement about Avogadro’s hypothesis is correct?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Under similar conditions of temperature and pressure, gases react with each other in simple ratio.

B) Under similar conditions of temperature and pressure, equal volumes of all gases contain same number of molecules.

C) At NTP all gases contain same number of molecules.

D) Gases always react with gases only at given temperature and pressure.

64 / 100

Category: Chemistry

The major source of unburnt hydrocarbons in the atmosphere is / are:

NUMS Mock 1
Chemistry
Hydrocarbons

A) Petroleum

B) Natural gas

C) Automobiles

D) Human beings

65 / 100

Category: Chemistry

Q.83 Alcohol oxidation gives carboxylic acid through

A. Amide

B. Carbonic acid

C. Ketone

D. Aldehyde

66 / 100

Category: Chemistry

Q.78 Here DH° is enthalpy of

A. Combustion

B. Formation

C. Neutralization

D. Solution

67 / 100

Category: Chemistry

Copper is a typical transition metal. Its atomic number is 29. In which oxidation state does it have a partially filled orbital in d-subshell?

NUMS Mock 2
Chemistry
d and f Block Elements

A) Cu

B) Cu+

C) Cu-

D) Cu2+

68 / 100

Category: Chemistry

Q.110 When acetylene is passed through the ammonical solution of copper chloride, the precipitate formed is of ____________ colour

A. White

B. Reddish brown

C. Green

D. Yellow

69 / 100

Category: Chemistry

Q.37 In Lucas test, tertiary alcohols form oily layer of alkyl halid ________?

A. On heating

B. Immediately

C. After 5-10 minutes

D. After 20 minutes

70 / 100

Category: Chemistry Ch 6 Class 11

An ionic compound is most likely to be formed when:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) Ionization energy of A is high but electron affinity of B is low

B) The ionization energy of A is low but electron affinity of B is high

C) Both ionization energy of A and electron affinity of B are high

D) Both ionization energy of A and electron affinity of B are low

71 / 100

Category: Chemistry Ch 9 Class 12

Benzene is prepared in laboratory by distillation of phenol with

H202

Zn dust

Ethyl bromide

HOCI

72 / 100

Category: Chemistry Ch 5 Class 11

Bracket series of 14-atom is in which of the following regions of electromagnetic spectrum?

Far infrared

Near infrared

Infrared

Visible

73 / 100

Category: Chemistry Ch 4 Class 11

The nature of Binding Force in Ionic Crystals is

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Magnetic

B) Repulsive

C) Electrostatic

D) Weak

74 / 100

Category: Chemistry Ch 9 Class 12

Stability of benzene is due to

Alternate double bonds

Electrons' cloud

Double bonds

Delocalization of electrons

75 / 100

Category: Chemistry Ch 4 Class 11

The shape of crystal in which it usually grows is called its _____.

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Size

B) Capacity

C) Habit

D) Property

76 / 100

Category: Chemistry Ch 11 Class 11

Reaction of Sodium with water is an example of

PMC Sample 3
Chemistry
Reaction Kinetics
Elimination Tool:

A) Reversible reaction

B) Endothermic

C) Irreversible

D) Slow

77 / 100

Category: Chemistry Ch 1 Class 11

The _____ study of composition of pure substance in 17th century clearly shows that few elements are components of many substances

PMC Practice 29
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) qualitative

B) quantitative

C) both A & B

D) extensive

78 / 100

Category: Chemistry

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called:

NUMS Mock 2
Chemistry
Fundamental Principles of Organic Chemistry

A) Functional isomers

B) Position isomers

C) Chain isomers

D) Metamers

79 / 100

Category: Chemistry Ch 9 Class 12

The structure of cyclohexane is:

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

A) Trigonal

B) Pentagonal

C) Hexagonal

D) None of these options is correct

80 / 100

Category: Chemistry Ch 7 Class 12

In SN1 reaction “1” stands for?

NTS 2016 SMBBMC
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Polar solvents

B) Unimolecular

C) Bimolecular

D) Nucleophile

81 / 100

Category: Chemistry Ch 6 Class 11

The decreasing order of second ionization energy of K, Ca, Ba is:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) K > Ca > Ba

B) Ca > Ba > K

C) Ba > K > Ca

D) K > Ba > Ca

82 / 100

Category: Chemistry

The products of decomposition of Mg(NO3)2are:

NUMS Mock 2
Chemistry
Periodicity in Elements

A) MgO and NO2

B) Mg and NO2

C) MgO, NO2and O2

D) Mg(NO3)2

83 / 100

Category: Chemistry Ch 13 Class 12

In the case of HOCH2CH2CH2COOH, from where is numbering started?

PMC Practice 2
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) OH group is given number 1 position

B) Carboxylic acid is given number 1 position

C) COOH is given number 3 position

D) COOH is given number 4 position

84 / 100

Category: Chemistry Ch 6 Class 11

The number of sigma and pi bonds in 1-butene-3-yne?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) 5 sigma and 5 pi

B) 7 sigma and 3 pi

C) 8 sigma and 2 pi

D) 6 sigma and 4 pi

85 / 100

Category: Chemistry Ch 7 Class 12

Maleic Acid and Fumaric Acid are:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) Cis-Trans isomers

B) chain isomers

C) position isomers

D) metamers

86 / 100

Category: Chemistry

Which of the following substances exhibits hydrogen bonding?

NUMS Mock 4
Chemistry
Chemical Bonding

A) H2S

B) SiH4

C) NH3

D) HI

87 / 100

Category: Chemistry Ch 9 Class 11

The pH of a solution can be kept constant by:

2022 PMC Test 2
Chemistry
Solution and Colloids
Elimination Tool:

A) saturated solution

B) super saturated solution

C) buffer solution

D) dilute solution

88 / 100

Category: Chemistry

Which of the following will not undergo aldol condensation?

NUMS Mock 2
Chemistry
Aldehydes and Ketones

A) Acetaldehyde

B) Propanaldehyde

C) Benzaldehyde

D) Trideuteroacetaldehyde

89 / 100

Category: Chemistry Ch 15 Class 12

Urea is the most widely used nitrogen fertilizer in Pakistan. Its composition is:

UHS 2015
Chemistry
Environmental Chemistry
Elimination Tool:

A) NH2CO

B) N2H5CO2

C) N2H4CO2

D) N2H4CO

90 / 100

Category: Chemistry Ch 7 Class 12

Which process is used to produce volatile compounds?

Reforming

Cracking

Polymerization

Distillation

91 / 100

Category: Chemistry Ch 15 Class 12

What is the catalyst used in the Haber process?

H₂ + N₂ ⟶ NH₃

PMC 2021 Tested
Chemistry
Industrial Chemistry
Elimination Tool:

A) Chlorine

B) Iron

C) Magnesium

D) Calcium

92 / 100

Category: Chemistry Ch 6 Class 11

Both ionic and covalent bonds are present in:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

A) CH4

B) SO2

C) KCl

D) NaOH

93 / 100

Category: Chemistry Ch 9 Class 12

The four bonds of carbon in methane are directed towards the corners of a:

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

A) Cube

B) Pentagon

C) Hexagon

D) Tetrahedron

94 / 100

Category: Chemistry

The number of amino acids found in proteins that a human body can synthesize is:

NUMS Mock 1
Chemistry
Macromolecules

A) 12

B) 10

C) 5

D) 14

95 / 100

Category: Chemistry Ch 1 Class 11

Natural gas in homes burns in excess of oxygen, what is the limiting reactant in this case?

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Oxygen

B) Natural gas

C) Air

D) There is no limiting reactant

96 / 100

Category: Chemistry Ch 15 Class 12

Burning of which one of the following waste is considered as useful industrial fuel or to produce electricity

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

A) Metals

B) Grass

C) Paper

D) Plastic

97 / 100

Category: Chemistry Ch 10 Class 12

Histidine acts as _____ in nature?

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Acidic

B) Neutral

C) Basic

D) Acidic and Basic

98 / 100

Category: Chemistry Ch 3 Class 11

When gases expand, this causes:

Cooling

Heating

Remain constant

None

99 / 100

Category: Chemistry Ch 13 Class 12

Which type of carboxylic acid is produced from the hydrolysis of nitriles?

PMC Practice 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Beta-hydroxy carboxylic acids

B) Acids, having one carbon more than the starting material

C) Acids having one carbon less than the starting material

D) Alpha-hydroxy acids

100 / 100

Category: Chemistry Ch 7 Class 12

CH3CH2CH2COCH3 is the functional isomer of:

NTS 2016 DUHS & JSMU
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) CH3CH2CH2CH2CHO

B) CH3CH2CH2CH2OH

C) CH3CH2COCH2CH3

D) CH3 – (CH)2 COCH2CH3

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