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 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

2 / 100

Category: Chemistry Ch 1 Class 12

Number of elements in 6th period is:

3 / 100

Category: Chemistry Ch 13 Class 12

What is the product of both fermentation reactions and fractional distillation:

NTS 2010
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

A) An ester

B) An acid

C) An alcohol

D) A soap

4 / 100

Category: Chemistry Ch 8 Class 12

Which of the following compounds will form a hydrocarbon on reaction with Grignard reagent?

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

A) CH3CH2OH

B) CH3COOCH3

C) CH3COCH3

D) CH3CHO

5 / 100

Category: Chemistry Ch 16 Class 12

Which one substance is used to remove both H2S and carbon dioxide from biogas?

Sodium oxide

Calcium oxide

Both a and b

None of the above

6 / 100

Category: Chemistry Ch 3 Class 12

The total number of transition elements is:

NUMS 2019 Reconduct
Chemistry
d and f Block Elements
Elimination Tool:

A) 58

B) 48

C) 30

D) 25

7 / 100

Category: Chemistry Ch 7 Class 12

Wohler prepared urea from:

Bakelite

Cyanic acid

NH4CNO

Formaldehyde

8 / 100

Category: Chemistry Ch 6 Class 11

Bond energy between nitrogen atoms in N2 molecule is:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

B) 820 kJ mol-1

C) 498 kJ mol-1

D) 347 kJ mol-1

E) 946 kJ mol-1

9 / 100

Category: Chemistry Ch 11 Class 11

Which of the following oxides is amphoteric in character?

NUMS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

A) CaO

B) CO2

C) SiO2

D) SnO2

10 / 100

Category: Chemistry Ch 8 Class 11

In the reaction, 2SO2 (g) + O2 ⇌ 2SO3 (g) ∆H= +X cal most favorable conditions of temperature and pressure for a greater yield of SO2 are:

NTS 2014
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Low temperature and low pressure

B) High temperature and low pressure

C) High temperature and high pressure

D) Low temperature and high pressure

11 / 100

Category: Chemistry Ch 3 Class 11

Which of the following solids is an example of a substance with a macromolecular structure?

NUMS 2016
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Aluminium chloride

B) Ice

C) Magnesium oxide

D) Silicon (IV) oxide

12 / 100

Category: Chemistry Ch 11 Class 11

Instantaneous rate of reaction is the rate at any

PMC Sample 2
Chemistry
Reaction Kinetics
Elimination Tool:

A) At Equilibrium

B) one instant

C) Given Temperature

D) Given Pressure

13 / 100

Category: Chemistry

Q.104 Which of the following does not show chain isomers

A. Butane

B. Propane

C. Pentane

D. Hexane

14 / 100

Category: Chemistry Ch 2 Class 11

How will you separate water and kerosene oil?

Distillation

Filtration

Sublimation

Crystallization

15 / 100

Category: Chemistry

Strongest acid among the following is:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

A) HCOOH

B) CH3COOH

C) (CH3)2CHCOOH

D) (CH3)3CCOOH

16 / 100

Category: Chemistry Ch 3 Class 11

Gases can be converted into liquid by:

Increasing temperature and decreasing pressure

Decreasing temperature and increasing pressure

Same temperature and pressure

Increasing pressure and temperature

17 / 100

Category: Chemistry Ch 10 Class 11

On balancing the following chemical equation: K2CrO4, + HCI –> KCI + 2CrCI3 + Cl2 + H2O The co-efficient with HCI will be?

18 / 100

Category: Chemistry

Choose the correct statement:

NUMS Mock 3
Chemistry
States of Matter – Gases, Liquids and Solids

A) Diamond is the hardest and graphite is softest

B) Graphite is the hardest while lamp black is softest

C) Coal is the hardest and coke is softest

D) Diamond is the hardest and coke is softest

19 / 100

Category: Chemistry

The carbonates of alkali metals are soluble in water except:

NUMS Mock 3
Chemistry
s and p Block Elements

A) K2CO3

B) Li2CO3

C) Na2CO3

D) Rb2CO3

20 / 100

Category: Chemistry Ch 7 Class 12

Example of nucleophile is:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A) BF3

B) SO3

C) AlCl3

D) CN

21 / 100

Category: Chemistry Ch 10 Class 12

Alkyl Halides that go through SN1 reactions are

Primary

Secondary

Tertiary

All of these

22 / 100

Category: Chemistry Ch 14 Class 12

Industrially water gas is converted into methanol by using catalyst:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

A) CuO + ZnO

B) CuO + Cr2O3

C) Al2O3+ ZnO

D) ZnO + Cr2O3

23 / 100

Category: Chemistry Ch 4 Class 11

In the gaseous state, the distance between the molecules is ___ times _____ than their diameters.

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

A) 2, lesser

B) 3, lesser

C) 3, greater

D) 2, greater

24 / 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

25 / 100

Category: Chemistry Ch 5 Class 11

For a multi-electron atom, the highest energy level among the following is:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

A) n = 5, l = 0, m = 0 , s = + ½

B) n= 4 , l = 0 , m = 0 , s = – ½

C) n= 3 , l = 1, m = 1 , s = – ½

D) n= 5 , l = 1 , m = 0 , s = + ½

26 / 100

Category: Chemistry Ch 12 Class 12

Meta-formaldehyde molecule has Oxygen MOMS:

One

Two

Three

Five

27 / 100

Category: Chemistry Ch 11 Class 12

Which of the following is not soluble In alcohol?

Resins and varnishes

Soaps and varnishes

Rubbers and plastics

Dyes and drug'

28 / 100

Category: Chemistry Ch 4 Class 12

Copper reacts with hot concentrated H2SO4 in presence of

Air

Water

Ammonia

Strong heat

29 / 100

Category: Chemistry Ch 1 Class 11

Molecular formula = n (Empirical formula). What does “n” represents in this

Molecular number

Integer

Odd number

Sum of 2 number

30 / 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

31 / 100

Category: Chemistry Ch 8 Class 12

Formula of propene is

C2H5

C3H6

C4H8

C6H6

32 / 100

Category: Chemistry Ch 14 Class 12

Adipic acid and Hexamethylene dlamine combine to form?

Nylon-6,6

Epoxy Resin

Polystyrene

Polyvinyl chloride

33 / 100

Category: Chemistry Ch 1 Class 12

Variable valency is shown by which of the following elements?

34 / 100

Category: Chemistry Ch 15 Class 12

The yellowish-brown color in photochemical smog is due to the presence of:

UHS 2013
Chemistry
Environmental Chemistry
Elimination Tool:

A) Sulphur dioxide

B) Carbon monoxide

C) Carbon dioxide

D) Nitrogen dioxide

35 / 100

Category: Chemistry Ch 1 Class 12

The chemical formula of chromyl chloride gas is?

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

A) Cr2O3

B) CrO2Cl2

C) CrOCl2

D) CrCl3

36 / 100

Category: Chemistry

Thermochemistry is very important to learn about _______.

NUMS Mock 3
Chemistry
Thermochemistry

A) Chemical Equilibrium

B) Chemical Bonding

C) Heat contents of a compound

D) AlI of these options are correct

37 / 100

Category: Chemistry

Q.177 Fluorine has highest electronegativity value that is

A. 3.4

B.. 4

C. 1.2

D. 2.6

38 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is the most widely used fertilizer in Pakistan?

Ammonium Nitrate

Ammonia

Calcium Nitrate

Urea

39 / 100

Category: Chemistry Ch 9 Class 12

If both double and triple bonds are present in the chain, double bond is given the ______

PMC Sample 2
Chemistry
Hydrocarbons
Elimination Tool:

A) Higher number

B) Lower Number

C) Priority

D) Second position

40 / 100

Category: Chemistry

Q.73 The unit used to express the relative atomic mass is called

A. Gram unit

B. Avogadro's number

C. Atomic mass

D. Atomic mass unit

41 / 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

42 / 100

Category: Chemistry Ch 10 Class 12

Which of the following Alkyl Halide is most reactive?

RCL

RBr

43 / 100

Category: Chemistry

Which one of the following is used as an anesthetic?

Acetone

Halothane

Methyl alcohol

Ethyl alcohol

44 / 100

Category: Chemistry Ch 5 Class 12

Which of the following is the highest oxidizing agent?

Cl2

Br2

45 / 100

Category: Chemistry Ch 6 Class 11

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

46 / 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

47 / 100

Category: Chemistry Ch 5 Class 12

What is the chief ore of fluorine?

Cryolite

Fluorspar

Dolomite

Both a and b

48 / 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

49 / 100

Category: Chemistry Ch 8 Class 11

If Kc = 1, then reaction is:

At equilibrium

complete

Moves in forward direction

None of these

50 / 100

Category: Chemistry Ch 11 Class 12

25 to 35 degree centigrade temperature is good for which of the following process?

Dow's method

Preparation of formalin

Fermentation

Methanol

51 / 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

52 / 100

Category: Chemistry

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

A) LiAlH4

B) Zn(Hg)-HCl

C) NaBH4

D) CH3Mgl

53 / 100

Category: Chemistry

Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

A) KMnO4

B) LiAlH4

C) K2Cr2O4

D) H2SO4

54 / 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

55 / 100

Category: Chemistry Ch 4 Class 12

The geometry of the complex compounds usually depends upon:

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

A) All of the given choices

B) Hybridization of central metal

C) Type of ligands

D) Types of hybridization in the elements of ligands

56 / 100

Category: Chemistry Ch 14 Class 12

Proteins are present in

Hair

Nails

Skin

All of these

57 / 100

Category: Chemistry

Q.146 a liquid crystalline state exist between two temperatures I-e melting temperature and temperature

A. Boiling

B. Freezing

C. Clearing

D. All of these

58 / 100

Category: Chemistry Ch 7 Class 11

Formation of carbon dioxide hinders in calculating the heat of formation of:

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

A) CCl4

B) O3

C) CO

D) C

59 / 100

Category: Chemistry Ch 4 Class 11

Which of the following properties does not belong to Gases?

PMC Practice 5
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) Indefinite volume

B) Indefinite shape

C) Low density

D) Strong interactions

60 / 100

Category: Chemistry

The formula which shows the simplest whole number ratio for the atoms of different elements in a compound is:

NUMS Mock 1
Chemistry
Stoichiometry

A) Ionic formula

B) Structural formula

C) Empirical formula

D) Molecular formula

61 / 100

Category: Chemistry Ch 11 Class 11

The unit of the rate constant is the same as that of the rate of reaction in:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) Zero order reaction

B) First order reaction

C) Second order reaction

D) Third order reaction

62 / 100

Category: Chemistry

The mass of proton is ______ times heavier than ______.

NUMS Mock 4
Chemistry
Atomic Structure

A) 1889, electrons

B) 1886, electrons

C) 1836, protons

D) 1836, electrons

63 / 100

Category: Chemistry

Q.144 Carboxylic acids form dimer due to

A. Small Sizes

B. Polarity of C-O bond

C.H-bonding

D. Dipole-Dipole interactions

64 / 100

Category: Chemistry Ch 3 Class 11

1 liter of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at which of the following temperatures will 1 L of the same gas weigh 1 g?

NTS 2017
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 450 K

B) 800 K

C) 600 K

D) 900 K

65 / 100

Category: Chemistry Ch 4 Class 11

Calculate the root mean square speed of He atoms at 295 K?

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

A) 34 cm/s

B) 3.6 x 104cm/s

C) 136000 cm/s

D) 63 cm/s

66 / 100

Category: Chemistry Ch 4 Class 11

Crystal structure of diamond is

Trigonal

Tetrahedral

Cubic

None of these

67 / 100

Category: Chemistry Ch 15 Class 12

1500•degree Celsius furnace temperature Is maintained at which zone?

Heating

Burning

Decomposition

Roth b and c

68 / 100

Category: Chemistry Ch 8 Class 11

For a gaseous reaction, the increase in pressure will shift the equilibrium in a direction:

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

A) Decreased concentration

B) Increased concentration

C) Decreased volume

D) Increased volume

69 / 100

Category: Chemistry Ch 8 Class 11

If 4.6 gm of ethyl alcohol and 6.0 gm of acetic acid is kept at a constant temperature until equilibrium was established, 2.0 gm of unused acetic acid were present. What is the Kc?

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 2.0

B) 3.0

C) 4.0

D) 5.0

70 / 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

71 / 100

Category: Chemistry Ch 8 Class 12

Which one of these is/are gasses?

Methane

Ethane

Propane

All of these

72 / 100

Category: Chemistry

Reaction mechanism of alkanes with halogens is known as;

NUMS Mock 3
Chemistry
Alkyl Halides and Amines

A) Propagation

B) Free radical substitution

C) Addition

D) Elimination

73 / 100

Category: Chemistry Ch 11 Class 11

The study of rates of chemical reactions and the factors that affect the rates of chemical reactions is known as:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

A) Thermodynamics

B) Stoichiometry

C) Electrochemistry

D) Chemical Kinetics

74 / 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

75 / 100

Category: Chemistry

In this reaction NH4* + H2O -> H3O*, the conjugate base of H3O+ ion is:

NUMS Mock 3
Chemistry
Chemical Equilibrium

A) NH4+

B) H2O

C) H*

D) NH3

76 / 100

Category: Chemistry Ch 2 Class 12

By heating 25g of limestone (CaCO3) , the weight of carbon dioxide produced is

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A) 14 g

B) 71 g

C) 11 g

D) 2 g

77 / 100

Category: Chemistry Ch 2 Class 12

Which of the following is least polarizable?

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

A) Ne

B) He

C) X

D) Kr

78 / 100

Category: Chemistry Ch 13 Class 12

Acetic acid derived from the word ‘Acetum’ which means_______?

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

A) Acetic acid

B) Bitter

C) Citric

D) Vinegar

79 / 100

Category: Chemistry Ch 8 Class 11

1 mole of N2O4 (g) was placed in an empty 1 dm^3 container and allowed to reach equilibrium according to the following equation:

N2O4(g) 2NO2(g)

At equilibrium, x mole Of N2O4 (g) had dissociated. What is the value of the equilibrium constant, Kc, at the temperature of the Experiment?

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 2x / ( 1 – x)

B) 4×2 / (1 – x)2

C) 2x / (1 – x )2

D) 4×2 / (1 – x)

80 / 100

Category: Chemistry Ch 2 Class 12

Which of the following statements about H2S is false:

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

B) It is a gas with a bad smell

C) It is a strong reducing agent

D) It is a molecule which is non linear

E) It is a weak base in water

81 / 100

Category: Chemistry Ch 16 Class 12

Chloro-fluoro carbons cause

Radiations pollution

Water pollution

Air pollution

Soil pollution

82 / 100

Category: Chemistry Ch 8 Class 11

The Ksp of AgCl is 2.0 x 10^-10-1010 mol2dm-6 . The maximum concentration of Ag+ ions:

NUMS 2015
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 2.0 x 10-10mol.dm-6

B) 1.41 x 10-5mol.dm-3

C) 1.0 x 10-5mol.dm-3

D) 4.0 x 10-20mol.dm-3

83 / 100

Category: Chemistry Ch 3 Class 11

Statement of Graham’s Law is

The rate of diffusion is directly proportional to the square root of its density

The rate of diffusion is inversely proportional to the square of its density

The rate of diffusion is inversely proportional to its density.

The rate of diffusion is inversely proportional to the square root of its density

84 / 100

Category: Chemistry Ch 7 Class 11

One Calorie is equal to:

PMC 2020
Chemistry
Thermochemistry
Elimination Tool:

A) 4.18 KJ

B) 4.18 J

C) 0.418 KJ mol-1

D) 0.418 KJ

85 / 100

Category: Chemistry

Water has maximum density at:

NUMS Mock 2
Chemistry
States of Matter – Gases, Liquids and Solids

A) -4 C

B) – 1 C

C) 0 C

D) 4 C

86 / 100

Category: Chemistry

Example of a nucleophile is:

NUMS Mock 1
Chemistry
Fundamental Principles of Organic Chemistry

A) BF3

B) AlCl3

C) SO3

D) CN

87 / 100

Category: Chemistry Ch 8 Class 11

The value K for H2(g) + CO2(g) H2O(g) + CO(g) is 1.80 at 1000 C. If 1.0 mole of each H2 and CO2 are placed in 1 litre flask, the final equilibrium concentration of CO at 1000 C will be:

NTS 2017
Chemistry
Chemical Equilibrium
Elimination Tool:

A) 0.295 M

B) 0.385 M

C) 0.531 M

D) 0.473 M

88 / 100

Category: Chemistry Ch 4 Class 12

The shape of [Co(NH3)6]3+ complex is:

UHS 2018
Chemistry
d and f Block Elements
Elimination Tool:

A) Linear

B) Square planar

C) Tetrahedral

D) Octahedral

89 / 100

Category: Chemistry Ch 3 Class 11

A child’s balloon has a volume 3.80 dm3, when the temperature is 35°C. If the balloon is put in a refrigerator and cooled to 5°c, the approximate volume of the balloon is (assume pressure inside the balloon is equal to atmospheric pressure):

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

A) 3.00 dm3

B) 3.43dm3

C) 3.08 dm3

D) 3.25 dm3

90 / 100

Category: Chemistry Ch 2 Class 12

Which one of the following is a common mineral of calcium? a

Feldspar

Limestone

Diamond

None of these

91 / 100

Category: Chemistry Ch 10 Class 11

The oxidation state of “S’ in the (S2O3)-2 is:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

A) +4

B) +6

C) -2

D) +2

92 / 100

Category: Chemistry Ch 12 Class 12

The flavour of amyl butyrate is:

PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:

A) Mango

B) Raspberry

C) Apricot

D) Orange

93 / 100

Category: Chemistry Ch 10 Class 11

Oxidation state of P in Mg2P3O5 Is

-2

-1

94 / 100

Category: Chemistry Ch 6 Class 11

Triatomic molecules have following movements:

NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:

A) Translation and vibrational

B) Rotational

C) All the above

D) None the above

95 / 100

Category: Chemistry Ch 2 Class 11

2 grams of H2 molecules contain ______ molecules.

NTS 2012
Chemistry
Stoichiometry
Elimination Tool:

A) 12.04 x 1023

B) 6.02 x 1023

C) 3.01 x 1023

D) 1.008

96 / 100

Category: Chemistry Ch 16 Class 12

Measuring ‘Biochemical Oxygen Demand’ (ROD) is a method used for:

Estimating the amount of organic matter in sewage water for determining quality

Measuring the activity of Saccharomyces cerevisiae in producing curd on a commercial scale.

Working out the efficiency of RBCs, about their capacity to carry oxygen.

Working out the efficiency of oil driven automobile engines.

97 / 100

Category: Chemistry

Q.158 Reduction of alkyl halides in the presence of Zn and mineral acid Produces______________ ?

A. Alkenes

B. Alkanes

C. Alkynes

D. Alcohols

98 / 100

Category: Chemistry

Q.16 Actual yield is always less than theoretical yield due to

A. Operational losses

B. reaction reversibility

C. side reaction

D. all of these

99 / 100

Category: Chemistry Ch 6 Class 12

What is not true about transition metals?

They can make colored complexes

They have only one valency

They can be used as a catalyst d)

They are d block elements

100 / 100

Category: Chemistry Ch 14 Class 12

Which of the following has less amount of protein a

Potato

Milk

Egg

Fruit

Your score is

The average score is 55%

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