Chemistry Practice Tests 5 - PLS Academy

Chemistry Practice Test 5

Chemistry Practice Test 5 is designed to help students strengthen their understanding of key chemistry concepts, formulas, and reactions for competitive entry tests like MDCAT, NUMS, AKU, UET, ECAT, NTS, as well as FSC Board Exams. This test covers topics from thermodynamics, chemical equilibrium, coordination compounds, and practical applications, helping students improve accuracy and problem-solving skills.

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Chemistry Practice Test 5

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1 / 100

Category: Chemistry Ch 7 Class 11

Born Haber cycle is used to determine:

PMC 2020
Chemistry
Thermochemistry
Elimination Tool:

A) Electron affinity

B) Lattice energy

C) Crystal energy

D) All of the above

2 / 100

Category: Chemistry Ch 9 Class 12

Which of the following statements is incorrect about benzene?

All of the carbon atoms are sp hybridized.

The carbon-carbon bond lengths are all the same.

It has delocalized electrons.

The carbon-hydrogen bond lengths are all the same.

3 / 100

Category: Chemistry Ch 11 Class 11

Metaboric acid when heated produces:

NTS 2016 DUHS & JSMU
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) B2O3

B) HBO2

C) H2B4O7

D) H3BO3

4 / 100

Category: Chemistry Ch 8 Class 11

At equilibrium the concentration of reactants and product become:

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Zero

B) Equal

C) Constant

D) Infinite

5 / 100

Category: Chemistry Ch 4 Class 12

Which of these is not an isotope of Phosphorus?

Red Phosphoru

Black Phosphorus

White Phosphorus

Gray Phosphorus

6 / 100

Category: Chemistry Ch 5 Class 11

The quantum numbers +½ and -½ for the electron spin represent:

NTS 2017
Chemistry
Atomic Structure
Elimination Tool:

A) Rotation of the electron in clockwise and anticlockwise direction respectively

B) Rotation of the electron in anticlockwise and clockwise direction respectively

C) Magnetic movement of the electron pointing up and down respectively

D) Two quantum mechanical spin states which have no classical analogue

7 / 100

Category: Chemistry Ch 1 Class 12

Which of the following elements has the lowest ionistion enthalpy?

PMC Sample 2
Chemistry
Periodicity in Elements
Elimination Tool:

A) Na

B) K

C) Mg

D) Al

8 / 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

9 / 100

Category: Chemistry Ch 8 Class 11

If the value of Kc is large than the ratio (products)/(reactants), the reaction:

Is at equilibrium

Is not at equilibrium

The reaction moves in the forward direction

The direction will move in the reverse direction

10 / 100

Category: Chemistry Ch 5 Class 11

P.E of an electron in the orbit of an atom Is

Zero

Less than zero

Greater than zero

None of these

11 / 100

Category: Chemistry Ch 10 Class 11

The oxidation number of all the elements in the free state is:

NTS 2012
Chemistry
Electrochemistry
Elimination Tool:

A) 1

B) 3

C) 0

D)-1

12 / 100

Category: Chemistry Ch 6 Class 11

Bond angle of Ethane is:

109.5

120

180

Different

13 / 100

Category: Chemistry Ch 12 Class 12

Consider the following reaction:

R―CHO + 2[Ag(NH3)2]OH → R―COONH4 + 2Ag + 2NH3 + H2O This reaction represents one of the following tests.

PreMedPK MDCAT Mock 1
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Fehling test

B) Benedict test

C) Ninhydrin test

D) Tollens test

14 / 100

Category: Chemistry

Which of the following indicate the correct variation of electronegativity?

NUMS Mock 1
Chemistry
Chemical Bonding

A) F > N > O > C

B) F > N C

C) F < N < O < C

D) F > O > N > C

15 / 100

Category: Chemistry Ch 6 Class 11

Which of the following is the highest electronegative element?

16 / 100

Category: Chemistry Ch 11 Class 12

Treatment of ethene with cold sulphuric acid, followed by reaction with boiling water, yields:

UHS 2019
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Ethane

B) Ethanal

C) Ethanol

D) Ethyne

17 / 100

Category: Chemistry Ch 12 Class 12

In Cannizzaro’s reaction, Benzyl alcohol is obtained from?

PreMedPK MDCAT Mock 4
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
Elimination Tool:

A) benzaldehyde

B) benzene

C) picric acid

D) benzyl chloride

18 / 100

Category: Chemistry Ch 1 Class 12

By increasing which of the following factor polarizability increases?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

A) Atomic radius

B) Ionization energy

C) Ionic radius

D) Hydration energy

19 / 100

Category: Chemistry Ch 1 Class 12

Which of following pair has highest conductivity?

Gold, Aluminium

Gold, Tungsten

Silver, Copper

Carbon, Gold

20 / 100

Category: Chemistry Ch 7 Class 11

Heat of vaporization of water is kcal/kg

574

674

474

364

21 / 100

Category: Chemistry

Hydration energy of sodium Ion Is:

321 Kj/mol

406 Kj/mol

1032 kJ/mil

940 Kj/mol

22 / 100

Category: Chemistry Ch 5 Class 11

Which of the following is the electronic configuration of 19K?

NUMS 2016
Chemistry
Atomic Structure
Elimination Tool:

A) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2

B) 1s2, 2s2, 2p6, 3s2, 3p6, 3s2, 3d1

C) 1s2, 2s2, 2p6, 3s2, 3p6, 4s2, 3d5

D) 1s2, 2s2, 2p6, 3s2, 3p6, 4s1

23 / 100

Category: Chemistry Ch 9 Class 12

Alkenes undergo:

UHS 2019
Chemistry
Hydrocarbons
Elimination Tool:

A) Electrophilic Addition

B) Electrophilic substitution

C) Nucleophilic substitution

D) Nucleophilic addition

24 / 100

Category: Chemistry Ch 8 Class 11

If Kc = 1, then reaction is:

At equilibrium

complete

Moves in forward direction

None of these

25 / 100

Category: Chemistry Ch 6 Class 11

H2O has a higher boiling point than HF because:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

A) H2O is more polar than HF

B) H2O can form more hydrogen bonds

C) H2O has higher molecular weight

D) H2O has more atoms

26 / 100

Category: Chemistry Ch 10 Class 11

Zn can be deposited on iron by?

Galvanizing

Cathode Coating

Neutral suspension

All of these

27 / 100

Category: Chemistry Ch 12 Class 12

– ROR is the nucleophile of

NTS 2011
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Alcohols

B) Esters

C) Cyanides

D) Ethers

28 / 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

29 / 100

Category: Chemistry Ch 14 Class 12

Which of the following is a monosaccharide ?

Maltose

Sucrose

lactose

Fructose

30 / 100

Category: Chemistry Ch 4 Class 11

Effusion of gases take place through a hole with:

NTS 2019
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Hole dimensions

B) Infinite dimensions

C) Slit like dimensions

D) Molecular dimensions:

31 / 100

Category: Chemistry Ch 15 Class 12

The acid rain water has pH:

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

A) Below 5

B) 7

C) Between 5 and 7

D) Between 7 and 14

32 / 100

Category: Chemistry Ch 11 Class 12

Methyl alcohol is used for production of

Dyes

Drugs

Perfumes

Antifreeze

33 / 100

Category: Chemistry Ch 11 Class 11

For the reaction, A(g) -> products:

When the concentration of A(g) doubles, the rate of reaction increases four folds, which means it is:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) Negative order reaction

B) First order reaction

C) Zero order reaction

D) Second order reaction

34 / 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

35 / 100

Category: Chemistry Ch 6 Class 11

Which theory deals with hybridization of orbitals?

VBT

MOT

VSEPR

None of these

36 / 100

Category: Chemistry

The reaction between borohydride

Nucleophilic substitution

Electrophilic substitution

Electrophilic addition

d) Both a and c

37 / 100

Category: Chemistry

Q.92 The correct statement about 2px and 2pz is

A. Both are shells of same atom

B. Both are degenerate orbitals

C. Both subshell have same energy

D. Both orbitals are parallel to each other

38 / 100

Category: Chemistry Ch 16 Class 12

Ozone Is

39 / 100

Category: Chemistry

Which type of reaction takes place when a carbonyl compound is treated with a mixture of NaCN and an acid?

NUMS Mock 3
Chemistry
Aldehydes and Ketones

A) Electrophilic addition reaction

B) Substitution reaction

C) Nucleophilic addition reaction

D) Displacement reaction

40 / 100

Category: Chemistry Ch 11 Class 12

Phenol reacts with calcium carbonate and evolve ________?

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

A) H2 gas

B) CO2 gas

C) O2

D) None of these

41 / 100

Category: Chemistry

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

A. 2

B. 8

C.6

D.4

42 / 100

Category: Chemistry Ch 1 Class 12

Element that is not found in Free State is?

None of these

43 / 100

Category: Chemistry

Q.102 The hetero atom present in furan is

A. O

B. N

C. S

D. Cl

44 / 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

45 / 100

Category: Chemistry Ch 1 Class 11

Mass of an atom ranges from?

PMC Practice 20
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) 1 x 10-28 kg to 1 x 10-22 kg

B) 1 x 10-26 kg to 1 x 10-23 kg

C) 1 x 10-27 kg to 1 x 10-24 kg

D) 1.6373 x 10-27 kg to 1 x 10-25 kg

46 / 100

Category: Chemistry Ch 5 Class 11

J.J Thomson determined the:

NTS 2016 DUHS & JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) Charge of an electron

B) Mass of an electron

C) e/m value of an electron

D) Charge of a proton

47 / 100

Category: Chemistry Ch 8 Class 12

How many chain isomers are shown by C5H12?

NTS 2018
Chemistry
Hydrocarbons
Elimination Tool:

A) 5

B) 4

C) 3

D) 2

48 / 100

Category: Chemistry Ch 3 Class 12

Prussian blue is:

NUMS 2014
Chemistry
d and f Block Elements
Elimination Tool:

A) K2Fe[FeCN6]

B) K4[FeCN6]

C) Fe4[Fe(CN)6] 3xH2O

D) K3FeCN6

49 / 100

Category: Chemistry Ch 11 Class 12

The catalyst used for the formation by dehydration of alcohols ?

PreMedPK MDCAT Mock 2
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Concentrated HN3 at 14 C

B) Concentrated H2SO4 at 14 C

C) Hot H3PO4 at 18 C

D) ZnCl2 at 45 C

50 / 100

Category: Chemistry Ch 2 Class 12

The most dense element is:

NTS 2013
Chemistry
s and p Block Elements
Elimination Tool:

A) Li

B) K

C) Ca

D) Ba

51 / 100

Category: Chemistry

The presence of several fine lines in a line spectrum shows the presence of:

NUMS Mock 3
Chemistry
Atomic Structure

A) Shells

B) Energy levels

C) Sub shells

D) All of these options are correct

52 / 100

Category: Chemistry Ch 11 Class 12

Which of the following compounds are added to ethanol to make it unfit for drinking?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

A) Pyridine

B) Methanol

C) Acetone

D) All of these options are correct

53 / 100

Category: Chemistry Ch 4 Class 11

Which of the following is an assumption of the kinetic model of an ideal gas?

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

A) Gas is at high pressure

B) Collision between particles are elastic

C) There are weak forces of attraction between particles in gas

D) Total energy of particles is proportional to the temperature

54 / 100

Category: Chemistry Ch 6 Class 11

Co-ordinate covalent bond Is not formed in which of the following

PH3

NH3

CH4

None of these

55 / 100

Category: Chemistry

Which one of the following enthalpy changes is always exothermic?

NUMS Mock 4
Chemistry
Thermochemistry

A) Enthalpy of combustion

B) Enthalpy of formation

C) Enthalpy of atomization

D) Enthalpy of solution

56 / 100

Category: Chemistry Ch 9 Class 11

The oxidation state of Cl in HClO4 is:

NTS 2019
Chemistry
Solution and Colloids
Elimination Tool:

A) -1

B) -5

C) +7

D) -7

57 / 100

Category: Chemistry

Q.138 Instantaneous rate of reaction is the rate at any

A. At Equilibrium

B. One instant

C. Given Temperature

D. Given Pressure

58 / 100

Category: Chemistry Ch 10 Class 12

The reaction 2RX + 2Na -> RR + 2NaX is an example of:

NUMS 2017
Chemistry
Alkyl Halides and Amines
Elimination Tool:

A) Cannizaro’s reaction

B) Kolbe’s reaction

C) Sabatier & Senderen’s reaction

D) Wurtz reaction

59 / 100

Category: Chemistry Ch 13 Class 12

Which one of the following compounds act as a catalyst when alcohols react with carboxylic acids.

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Pt

B) Conc. HNO3

C) Ni

D) Conc. H2SO4

60 / 100

Category: Chemistry Ch 8 Class 12

Methane reacts with chlorine to form chloromethane. The catalyst used is?

NTS 2015 SMBBMC
Biology
Hydrocarbons
Elimination Tool:

A) Pb

B) Zn

C) HCl

D) Sunlight

61 / 100

Category: Chemistry Ch 12 Class 12

Hybridization of carbon in -CHO group is:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) sp

B) sp2

C) sp3

D) dsp

62 / 100

Category: Chemistry Ch 3 Class 12

Identify from the following the example in which the complex is an anion:

NTS 2016 SMBBMC
Chemistry
d and f Block Elements
Elimination Tool:

A) [Co(en)3](NO3)3

B) [Co(NH3)3(NO2)3]

C) K3[Co(NO2)6]

D) [Pt(NH3)2Cl4]T

63 / 100

Category: Chemistry

When was electron discovered?

1897

1909

1896

None of these

64 / 100

Category: Chemistry Ch 5 Class 11

How many electrons can have the values n=2, l=1, and s=+½ in the configuration 1s2, 2s2, 2p3?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
Elimination Tool:

A) 1

B) 3

C) 5

D) 7

65 / 100

Category: Chemistry Ch 14 Class 12

Ethylene is a monomer of polyethylene that is widely used as raw material for manufacturing plastics. It can be polymerized into two different classes: HDPE and LDPE. The following choices are the differences of HDPE and LDPE except:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

A) The density

B) The branching of ethylene

C) Reaction conditions

D) Type of polymerization

66 / 100

Category: Chemistry Ch 4 Class 11

Vapor pressure of a liquid depends upon

) Nature of liquid

Temperature

Both a and b

Atomic Pressure

67 / 100

Category: Chemistry

An ionic compound is most likely to be formed when:

NUMS Mock 1
Chemistry
Chemical Bonding

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

68 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is not a macronutrient?

69 / 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

70 / 100

Category: Chemistry Ch 14 Class 12

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

A) Compounds

B) Molecules

C) Ions

D) Elements

71 / 100

Category: Chemistry Ch 11 Class 11

For which of the following order of the reaction, rate of reaction is inversely proportional to the concentration reaction?

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) 1st order reaction

B) 2nd order reaction

C) Negative order of reaction

D) Zero order of reaction

72 / 100

Category: Chemistry Ch 16 Class 12

The best yield of 502 can be obtained by which of the following:

Burning of coal

Excess of oxygen

Fertilization

Oxides of pyrites

73 / 100

Category: Chemistry Ch 8 Class 12

Catalytic hydrogenation of alkenes exhibits:

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

A) Substitution reaction

B) Elimination reaction

C) Addition reaction

D) Condensation reaction

74 / 100

Category: Chemistry Ch 6 Class 12

Which metal is not attracted by magnet?

Copper

Zinc

Iron

Both a & b

75 / 100

Category: Chemistry Ch 9 Class 11

The aqueous solution of which of the following electrolyte will conduct electric current to large extent:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

A) ??(??)2

B) ?2??3

C) N?4??

D) N?4?H

76 / 100

Category: Chemistry

While finding the relative atomic mass, which of the following standard is used to compare the atomic mass of chlorine (35.5 amu)

NUMS Mock 1
Chemistry
Stoichiometry

A) Carbon – 13

B) Neon – 20

C) Carbon – 12

D) Nucleon number

77 / 100

Category: Chemistry Ch 7 Class 11

The enthalpy change of the reaction

H2(g) + ½ O2 -> H2O (l)

under standard conditions is:

NUMS 2017
Chemistry
Thermochemistry
Elimination Tool:

A) Enthalpy change of formation of water

B) Enthalpy change of neutralization

C) Both; Enthalpy change of combustion of Hydrogen and enthalpy change of formation of water

D) Enthalpy change of combustion of Hydrogen

78 / 100

Category: Chemistry Ch 9 Class 12

n-Heptane can be converted into benzene by catalysts:

Al203, Si02, Fe203

Si02, K20, Cr203

Al203,Si02, Cr203

None of these

79 / 100

Category: Chemistry

If we balanced the following reaction , what is the net ionic charge on the right side of the equation?

__H+ +___ MnO4- + ____ Fe2+ →___ Mn2+ + ___ Fe3+ + ___ H2O

NUMS Mock 4
Chemistry
Electrochemistry

A) +5

B) +7

C) +10

D) +17

80 / 100

Category: Chemistry

Q.13 Alkali metals group lies in_________?

A.d-block

B. s-bloc

C.f- block

D.P-block

81 / 100

Category: Chemistry

Linear combination of atomic orbitals (LCAO) results in the formation of:

NUMS Mock 2
Chemistry
Chemical Bonding

A) Sigma bond

B) Pi bond

C) Bonding molecular orbitals only

D) Bonding and antibonding molecular orbitals

82 / 100

Category: Chemistry Ch 5 Class 11

The electronic configuration of iron is:

NTS 2011
Chemistry
Atomic Structure
Elimination Tool:

A) 1s2 , 2s2 , 2p6 , 3s2 , 3p6 , 3d5 , 4s2

B) 1s2, 2s2 , 2p6 , 3s2 , 3p6 , 3d5, 4s1

C) 1s2 , 2s2, 2p6 , 3s2 , 3p6 , 3d6 , 4s2

D) 1s2 , 2s2 , 2p6 , 3s2 , 3p6 , 3d3 , 4s2

83 / 100

Category: Chemistry

Q.92 Change in Pressure will only affect fhe.substances which are in

A. Liquid stale

B. Solid State

C.Plasma state

D. Gaseous State

84 / 100

Category: Chemistry Ch 1 Class 11

The break down of molecular ions from natural productsgive important information about?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

A) Size

B) Position

D) Structure

C) Shape

85 / 100

Category: Chemistry Ch 9 Class 12

How many chain isomers are possible for the alkane C6H14?

NTS 2016 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

A) six

B) five

C) four

D) nine

86 / 100

Category: Chemistry Ch 5 Class 12

Bleaching powder is agent?

Oxidizing

Reducing

Both a and b

None of these

87 / 100

Category: Chemistry

Q.17 Legumine & collagen protein are present in which type of body tissues:

A. Cardiac

B. Epithelial

C. Connective

D. Epidermis

88 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids do not give the characteristics reaction of >C=O group because of:

PMC Practice 1
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) Polar nature

B) Resonance

C) Symmetrical structure

D) Attached alkyl group

89 / 100

Category: Chemistry Ch 3 Class 11

Acetone and Chloroform are soluble into each other due to:

NUMS 2015
Chemistry
Chemical Bonding
States of Matter
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Hydrogen bonding

B) Dipole – dipole interaction

C) London forces

D) Both (a) and (b)

90 / 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

91 / 100

Category: Chemistry Ch 11 Class 11

The rate of chemical reaction:

PMC Sample 2
Chemistry
Reaction Kinetics
Elimination Tool:

A) Increases as the reaction proceeds

B) Decrease as the reaction proceeds

C) May increase or decrease during the reaction

D) Remains constant as the reaction proceeds

92 / 100

Category: Chemistry Ch 12 Class 12

In which of the following reaction alkyl ketones are converted Into carboxylic acid with one carbon atom less than the parent compound?

Haloform

Cannizzaro

Aldol

None

93 / 100

Category: Chemistry Ch 8 Class 12

Which type of isomerism depends on the distribution of carbon atoms on each side of the functional group?

NTS 2013
Chemistry
Hydrocarbons
Elimination Tool:

A) Structural isomerism

B) Functional isomerism

C) Chain isomerism

D) Metamerism

94 / 100

Category: Chemistry Ch 9 Class 12

Which one of the following is not a heterocyclic compound?

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

A) Thiophene

B) Anthracene

C) Furan

D) Pyrrole

95 / 100

Category: Chemistry Ch 16 Class 12

Earth’s crust Is Included In which sphere?

Lithosphere

Hydrosphere

Atmosphere

Aerosphere

96 / 100

Category: Chemistry Ch 13 Class 12

In esterification, alcohol reacts with:

Acetaldellye

Halogens

Carboxylic acid

None

97 / 100

Category: Chemistry Ch 4 Class 11

Which one Is not possible a)

Ionic crystal

Covalent crystal

Metallic crystal

Atomic-crystal

98 / 100

Category: Chemistry Ch 1 Class 12

Down’s cell is used to prepare:

NTS 2019
Chemistry
Periodicity in Elements
Elimination Tool:

A) Sodium carbonate

C) Sodium hydroxide

B) Sodium bicarbonate

D) Sodium metal

99 / 100

Category: Chemistry Ch 3 Class 11

When does a gas deviate the most from its ideal behavior ?

NTS 2010
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) At low pressure and high temperature

B) At high pressure and high temperature

C) At low pressure and low temperature

D) At high pressure and low temperature

100 / 100

Category: Chemistry Ch 5 Class 11

Diameter of an atom is in the range of?

NUMS 2014
Chemistry
Atomic Structure
Elimination Tool:

A) 0.2m

B) 0.2 nm

C) 2 x 10^-19nm

D) 0.2 pm

Your score is

The average score is 55%

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