Chemistry Practice Test 2


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Chemistry Practice Test 2

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Category: Chemistry Ch 1 Class 11

In which of the following will water evaporate earlier?

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
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2 / 100

Category: Chemistry Ch 3 Class 11

Which of the following gas is more ideal at STP?

NUMS 2015
Chemistry
States of Matter – Gases, Liquids and Solids
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3 / 100

Category: Chemistry

Q.170 Which of the following is not a mixture of hydrocarbons?

4 / 100

Category: Chemistry Ch 8 Class 11

Le Chatelier’s principle explains effect of all of the following except

5 / 100

Category: Chemistry

Q.98 The pair of liquids having the H-bonding as dominate force of attraction in the mixture but not individually

6 / 100

Category: Chemistry

  • Q.72 4 mole of NO and 0.9mole of CO2 are mixed initially according to equation At equilibrium, 0.1 mol of CO2 is present. The value of Kc is

7 / 100

Category: Chemistry Ch 10 Class 11

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

PMC 2020
Chemistry
Electrochemistry
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8 / 100

Category: Chemistry Ch 13 Class 12

HCOOH is the structure of:

NUMS 2018
Chemistry
Carboxylic Acids and its Derivatives
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9 / 100

Category: Chemistry Ch 5 Class 11

Choose the value of the Rydberg constant among the following values:

NUMS 2014
Chemistry
Atomic Structure
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10 / 100

Category: Chemistry Ch 1 Class 12

Boiling point of hydrides of the 4th period is larger than __________.

PMC Practice 2
Chemistry
Periodicity in Elements
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11 / 100

Category: Chemistry Ch 6 Class 11

Methane has geometry

12 / 100

Category: Chemistry Ch 8 Class 11

Precipitation occurs when the product of ionic concentrations is:

NUMS 2019 Reconduct
Chemistry
Chemical Equilibrium
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13 / 100

Category: Chemistry Ch 14 Class 12

The polymer containing acrylonitrile as a monomer is:

PMC 2021 Tested
Chemistry
Macromolecules
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14 / 100

Category: Chemistry Ch 7 Class 12

C6H5C≡N and C6H5N≡C exhibits which type of isomerism:

NTS 2015 SMBBMC
Biology
Fundamental Principles of Organic Chemistry
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15 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is correct general formula of aliphatic carboxylic acid ?

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
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16 / 100

Category: Chemistry Ch 9 Class 11

The temperature at which one crystalline form changes to other is called ___ temperature

PMC Sample 3
Chemistry
Solution and Colloids
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17 / 100

Category: Chemistry Ch 4 Class 12

The chemical name of K2[Zn(OH)4] is:

NTS 2019
Chemistry
d and f Block Elements
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18 / 100

Category: Chemistry Ch 9 Class 12

The structure of cyclohexane is:

PMC Sample 3
Chemistry
Hydrocarbons
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19 / 100

Category: Chemistry Ch 3 Class 12

Boric acid is used in

20 / 100

Category: Chemistry Ch 13 Class 12

Strongest acid among the following is:

NUMS 2014
Chemistry
Carboxylic Acids and its Derivatives
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21 / 100

Category: Chemistry

Hydrolysis of acyl chloride results in the formation of:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

22 / 100

Category: Chemistry Ch 9 Class 11

At 25 C, the equivalent conductance at infinite dilution of HCl solution is 425 ohm 1 cm 2 Equiv 1 while its specific conductance is 3.825 ohm 1 cm 1. If the apparent degree of dissociation is 90%, the normality of the solution is:

NUMS 2016
Chemistry
Solution and Colloids
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23 / 100

Category: Chemistry Ch 9 Class 11

Mole fraction of any compound is the ratio of moles of all components in a:

UHS 2011
Chemistry
Solution and Colloids
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24 / 100

Category: Chemistry Ch 8 Class 11

If Kc < 1, then the reaction proceeds:

25 / 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
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26 / 100

Category: Chemistry Ch 1 Class 11

If the number of molecules of different gases are the same at S.T.P., the occupied volume will be _____.

PMC Practice 24
Chemistry
Introduction to Fundamental Concepts of Chemistry
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27 / 100

Category: Chemistry Ch 13 Class 12

) Acetic acid is used in making

28 / 100

Category: Chemistry Ch 2 Class 12

Chlorine upon reaction in cold NaOH yields:

NUMS 2014
Chemistry
s and p Block Elements
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29 / 100

Category: Chemistry

Q.122 An orbital can accommodate at the most______________electrons

30 / 100

Category: Chemistry

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

NUMS Mock 4
Chemistry
States of Matter – Gases, Liquids and Solids

31 / 100

Category: Chemistry Ch 13 Class 12

Carboxylic acids form dimers due to _________.

PMC Practice 3
Chemistry
Carboxylic Acids and its Derivatives
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32 / 100

Category: Chemistry Ch 11 Class 12

In which of the following reaction does the C-O bond of alcohol not break?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
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33 / 100

Category: Chemistry Ch 12 Class 12

Formaldehyde is Industrially Prepared from: 

34 / 100

Category: Chemistry Ch 10 Class 11

Only those substances are written in Ion Electron Method:

PMC Sample 1
Chemistry
Electrochemistry
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35 / 100

Category: Chemistry

Example of nucleophile is:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

36 / 100

Category: Chemistry Ch 11 Class 12

The product formed by acid catalysed hydration of 2 – phenyl propene is:

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
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37 / 100

Category: Chemistry Ch 8 Class 12

Which metal is used to form alkanes from alkyl halides?

38 / 100

Category: Chemistry

Aromatic compounds burn with a sooty flame because:

NUMS Mock 3
Chemistry
Fundamental Principles of Organic Chemistry

39 / 100

Category: Chemistry Ch 11 Class 12

Which of the following alcohol does not get oxidized when it reacts with K₂Cr₂O₇/H₂SO₄?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
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40 / 100

Category: Chemistry Ch 13 Class 12

What is common when carboxylic acid is reacted with base or with alcohol?

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
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41 / 100

Category: Chemistry Ch 2 Class 11

22.4 dm3 of volume of each H2 and O2 are sparked to produce water vapours (considered as ideal gas) on completion of reaction. What is the decrease in the volume of the vessel?

NTS 2016 SMBBMC
Chemistry
Stoichiometry
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42 / 100

Category: Chemistry Ch 8 Class 12

Which one of the organic compounds Is the most reactive?

43 / 100

Category: Chemistry Ch 11 Class 11

Sum of all the exponents of the molar concentration of the reactant present in the rate equation is known as:

NTS 2012
Chemistry
Reaction Kinetics
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44 / 100

Category: Chemistry Ch 15 Class 12

Which of the following is the most environmentally friendly source to derive energy?

NUMS 2017
Chemistry
Environmental Chemistry
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45 / 100

Category: Chemistry Ch 14 Class 12

) Nylon 6 —6 Is obtained by heating adipic acid with:

46 / 100

Category: Chemistry Ch 12 Class 12

Which class of the compounds is represented by the type formula ROR?

NUMS 2017
Chemistry
Aldehydes and Ketones
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47 / 100

Category: Chemistry

Q.120 Cyanohydrin are formed from carbonyl compounds by __________ reactions mechanism

48 / 100

Category: Chemistry Ch 15 Class 12

___________ is an eye irritant.

UHS 2014
Chemistry
Environmental Chemistry
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49 / 100

Category: Chemistry Ch 3 Class 12

Which of the following transition metals in its ground state have unpaired electrons in an s-orbital?

NUMS 2015
Chemistry
d and f Block Elements
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50 / 100

Category: Chemistry Ch 3 Class 12

Ability of carbon to form long chains and rings is known as?

51 / 100

Category: Chemistry Ch 13 Class 12

For preparation of carboxylic acid, alkyl nitrite is required. Alkyl nitrite can be prepared by treating KCN with:

52 / 100

Category: Chemistry Ch 11 Class 12

Rectified spirits have a percentage of alcohol.

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
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53 / 100

Category: Chemistry

Q.153 The properties of liquid crystals are intermediate b/w crystals and

54 / 100

Category: Chemistry Ch 4 Class 11

At 1489 mm of Hg, water will boil at:

NUMS 2019 Reconduct
Chemistry
States of Matter – Gases, Liquids and Solids
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55 / 100

Category: Chemistry Ch 12 Class 12

During oxidation of unsymmetrical ketones which atom is oxidized?

PreMedPK MDCAT Mock 5
Aldehydes and Ketones
PMC Practice 28
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56 / 100

Category: Chemistry Ch 3 Class 11

950 torr corresponds to:

NTS 2010
Chemistry
States of Matter – Gases, Liquids and Solids
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57 / 100

Category: Chemistry Ch 11 Class 12

Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?

PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Aldehydes and Ketones
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58 / 100

Category: Chemistry Ch 3 Class 12

Which element of group 4A shows inert pair effect?

59 / 100

Category: Chemistry Ch 3 Class 12

silicon can be obtained from which one of the following compounds

60 / 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

61 / 100

Category: Chemistry Ch 4 Class 12

Which of the following is typical transition element?

PMC Practice 4
Chemistry
d and f Block Elements
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62 / 100

Category: Chemistry

 

Q.115 The crude petroleum is separated in fraction by

63 / 100

Category: Chemistry Ch 15 Class 12

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

64 / 100

Category: Chemistry Ch 13 Class 12

Which one is the carbonyl protecting group?

65 / 100

Category: Chemistry

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

66 / 100

Category: Chemistry Ch 6 Class 11

Every sp3 orbital is oriented in space In such a way that angle between them is:

67 / 100

Category: Chemistry Ch 13 Class 12

Which of the following is not the physical property of acetic acid?

NUMS 2017
Chemistry
Carboxylic Acids and its Derivatives
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68 / 100

Category: Chemistry Ch 2 Class 12

Which one of the following alkaline earth metal carbonates is thermally the most stable?

NUMS 2020
Chemistry
s and p Block Elements
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69 / 100

Category: Chemistry Ch 5 Class 12

) Which halogen is present in Teflon?

70 / 100

Category: Chemistry Ch 6 Class 11

Bond angle of Ethane is:

71 / 100

Category: Chemistry Ch 6 Class 11

Structure of ammonia is:

72 / 100

Category: Chemistry

Both ionic and covalent bonds are present in:

NUMS Mock 3
Chemistry
Chemical Bonding

73 / 100

Category: Chemistry Ch 1 Class 12

Within each pair of elements F & Cl, S & Se, and Li & Na respectively, the elements that release more energy upon an electron gain are:

PMC Sample 3
Chemistry
Periodicity in Elements
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74 / 100

Category: Chemistry Ch 1 Class 11

If 9.8 g of sulfuric acid is dissolved in an excess quantity of water, it will yield _______ moles of hydrogen ion ( H+) and _______ mole of sulphate ions (SO4 -2).

PMC Practice 22
Chemistry
Introduction to Fundamental Concepts of Chemistry
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75 / 100

Category: Chemistry Ch 3 Class 11

At the transition temperature of a crystalline solid, the substance exists:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
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76 / 100

Category: Chemistry Ch 6 Class 11

Sigma bond is formed by:

NTS 2010
Chemistry
Chemical Bonding
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77 / 100

Category: Chemistry

Q.126 What is the coordination number of Pt in [PtCINO2)NH3)4]

78 / 100

Category: Chemistry

Water has maximum density at:

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

79 / 100

Category: Chemistry

CH3CN + NCI > A + B in presence of water in the above reaction A and B are

80 / 100

Category: Chemistry

Q.95 Wholar first time prepare urea in laboratory in ?

81 / 100

Category: Chemistry Ch 8 Class 12

Molecular Formula of Propane is:

82 / 100

Category: Chemistry Ch 8 Class 11

In Exothermic Reactions heat is _______

PMC Sample 3
Chemistry
Chemical Equilibrium
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83 / 100

Category: Chemistry Ch 14 Class 12

Graphite has a structural similarity with:

PMC Practice 2
Chemistry
Macromolecules
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84 / 100

Category: Chemistry Ch 2 Class 11

Which of the following is the safest way to dry crystals during crystallization?

85 / 100

Category: Chemistry Ch 6 Class 11

Electronegativity is defined as the power of an atom in a molecule to

86 / 100

Category: Chemistry Ch 7 Class 11

Anything under test or observation in laboratory is called

PMC Sample 2
Chemistry
Thermochemistry
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87 / 100

Category: Chemistry

Q.162 Ifthe concentration of reactants in a chemical reaction is Unity the rate is called

88 / 100

Category: Chemistry Ch 12 Class 12

Treatment of propionaldehyde with Dil. the NaOH solution gives:

NUMS 2016
Chemistry
Aldehydes and Ketones
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89 / 100

Category: Chemistry Ch 9 Class 11

0.5 molar solution NaOH contains:

NUMS 2020
Chemistry
Solution and Colloids
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90 / 100

Category: Chemistry Ch 4 Class 12

Which one of the following elements has six valence electrons?

91 / 100

Category: Chemistry Ch 2 Class 12

7) Gypsum supplies to soil

92 / 100

Category: Chemistry Ch 1 Class 12

Which of the following has the least electron affinity value?

NUMS 2015
Chemistry
Periodicity in Elements
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93 / 100

Category: Chemistry

When was electron discovered?

94 / 100

Category: Chemistry Ch 7 Class 12

Maleic Acid and Fumaric Acid are:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
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95 / 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
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96 / 100

Category: Chemistry Ch 13 Class 12

Solubility of carboxylic acids ______?

PMC Sample 1
Chemistry
Carboxylic Acids and its Derivatives
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97 / 100

Category: Chemistry Ch 3 Class 11

Upon which factor is vapour pressure not dependent:

NUMS 2020
Chemistry
States of Matter – Gases, Liquids and Solids
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98 / 100

Category: Chemistry Ch 16 Class 12

NO2 in atmosphere absorbs moisture to form?

99 / 100

Category: Chemistry Ch 9 Class 11

Definition of Raoult’s law is,

100 / 100

Category: Chemistry Ch 10 Class 12

Reaction of CH3CH2MgBr with ethylene epoxide gives:

NUMS 2019 Reconduct
Chemistry
Alkyl Halides and Amines
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