Given the reaction:

C3H6 + 5O2 → 3CO2 +4H2O

At STP, how many liters of O2 are needed to completely burn 5.0 liters of C3H6?

NTS 2010
Chemistry
Stoichiometry
Elimination Tool:

Which one of the following has the least C — C bond length?

Example of metamerism is:

Which of the following will not undergo aldol condensation?

NUMS 2016
Chemistry
Aldehydes and Ketones
Elimination Tool:

Which of the following is a result of reaction between Iodine and Oxygen?

At the end of the periodic table _____ are found.

NTS 2016 DUHS & JSMU
Chemistry
Periodicity in Elements
Elimination Tool:

Hydrides which are prepared by passing hydrogen gas over hot alkali metals or alkaline earth metals are called:

NTS 2011
Chemistry
s and p Block Elements
Elimination Tool:

A sample of gas weighs 1.25 g, at 28 C occupying a volume of 2.50 x 10-2 ml and its pressure is 715 torr. What is the molar mass in grams?

NTS 2016 DUHS & JSMU
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

Which of the following is not a physical property of ethers?

NUMS 2019 Cancelled
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

Highest oxidation state of chlorine Is

The acid rain water has pH:

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.2 is equal to:

NUMS 2015
Chemistry
Stoichiometry
Solution and Colloids
Elimination Tool:

Red lead is:

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

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

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

Which of the following has the maximum number of unpaired electrons?

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

Name the main product formed as a result of the following reaction

H3C – (CH2)5 – CH3 ————> Product

n-heptane

Conditions: 480 – 550 C, 150 – 399 psi V2O5

NTS 2019
Chemistry
Hydrocarbons
Elimination Tool:

Which alkaline earth metal make peroxide?

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

The addition of HBr to an unsymmetrical alkenes follows?

PreMedPK MDCAT Mock 2
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following elements has the highest boiling point?

NTS 2014
Chemistry
s and p Block Elements
Elimination Tool:

Decrease in Oxidation number is

PMC Sample 2
Chemistry
Electrochemistry
Elimination Tool:

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

Na, Ca & Mg are

Which one of these is/are gasses?

106 gram of Na2CO3 per dm3 of the solution of Na2CO3 in water, the concentration of the solution will be:

NTS 2018
Chemistry
Stoichiometry
Elimination Tool:

Which of the following is not an isomer of other three:

Percentage of nitrogen in urea is:

Which of the following has shortest C – C bond length?

What is the color of the precipitate when Brady’s reagent is used to test a benzaldehyde?

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:

If we take 2.2 grams of CO2, 6.02 x 1021atoms of nitrogen. and 0.03-gram atoms of sulfur, then the molar ratio of C, N, and atoms will be:

NTS 2013
Chemistry
Stoichiometry
Elimination Tool:

Variable valency is generally exhibited by:

NUMS 2014
Chemistry
d and f Block Elements
Elimination Tool:

Which element of group 4A shows inert pair effect?

Which of the following is not a physical property of ethers?

PreMedPK MDCAT Mock 3
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

Which one of the following free radical is most stable:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Through what phenomenons does heat flow?

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

Catalytic hydrogenation of alkenes exhibits:

NUMS Mock 2
Chemistry
Hydrocarbons

Structure of ice is similar to which of the following?

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

Which of these in an aqueous solution of equal concentration has the lowest pH?

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Which Organic acid is used in pulping of wood for paper?

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

NUMS 2017
Chemistry
Periodicity in Elements
Elimination Tool:

The order of force of repulsion between lone pairs and Bond pairs is?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

X-rays are defined as:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

Which of the following has the lowest boiling point?

Which of the following is least polarizable?

NUMS Mock 1
Chemistry
s and p Block Elements

Zinc reacts with dil. H2SO4 to give H2. It also reacts with conc. H2SO4 to form SO2. In these reactions.

NTS 2014
Chemistry
d and f Block Elements
Elimination Tool:

Many elements have fractional atomic masses. This is because:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

The method which is used on an industrial scale for production of alcohol from alkene is:

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

The overall positive reduction potential value predicts that process is:

NUMS 2015
Chemistry
Electrochemistry
Elimination Tool:

Which of the following pairs of gases have same rate of diffusion:

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

Oxidation state of sulphur in H2SO4?

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:

From the following, only one amino acid has two identical groups attached to its central atom. Which amino acid out of the following matches the description given above.

NUMS Mock 3
Chemistry
Chemistry of Life

Which is more soluble in ethanol?

Molal freezing point constant of water is:

UHS 2013
Chemistry
Solution and Colloids
Elimination Tool:

Which of the following best describes the emission spectrum of atomic hydrogen?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
Elimination Tool:

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

NTS 2017
Chemistry
Atomic Structure
Elimination Tool:

If 9.8 g of sulfuric acid is dissolved in excess quantity of water, it will yield ____ moles of hydrogen ion (H+) and _____ moles of sulphate ions (SO42-).

PMC Practice 7
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Matter changes from one state to another state on change in ___________.

NTS 2015 SMBBMC
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

Which one is not the type of Boric Acid?

What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2

NUMS 2019 Cancelled
Chemistry
Aldehydes and Ketones
Elimination Tool:

AgCI is in water.

Wohler prepared urea from:

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

UHS 2019
Chemistry
Hydrocarbons
Elimination Tool:

Magnesium oxide is used in:

NTS 2015 DUHS and JSMU
Chemistry
s and p Block Elements
Elimination Tool:

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
Elimination Tool:

Polymerization is of how many types:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

Oxidation state of P in Mg2P3O5 Is

Anything under test or observation in laboratory is called

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

Which of the following statements is NOT true for the first law of thermodynamics?

NTS 2014
Chemistry
Thermochemistry
Elimination Tool:

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

In the following reaction:

3Br2 +6CO32- + 3H2O → 5Br-1 + BrO3-1 + 6HCO3-1

NTS 2014
Chemistry
Electrochemistry
Elimination Tool:

In general formula of alkyl halide RX, X represents ________

PMC Sample 2
Chemistry
Alkyl Halides and Amines
Elimination Tool:

which type of hybridization doesn’t exist?

Which is the structure of polyvinyl chloride (polychloroethane)?

UHS 2018
Chemistry
Macromolecules
Elimination Tool:

Which one of the following elements has six valence electrons?

What happens if we react a carboxylic acid with an acyl chloride?

NUMS 2019 Cancelled
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

In Exothermic Reactions heat is _______

PMC Sample 3
Chemistry
Chemical Equilibrium
Elimination Tool:

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:

Rectified spirits have a percentage of alcohol.

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

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

F-block elements are called?

PMC Practice 1
Chemistry
d and f Block Elements
Elimination Tool:

What is the chemical reaction mechanism by which cells make polymers from monomers?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

Study that deals with hydrocarbons and its derivatives Is known as:

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:

CFCs are organic compounds, that are derivatives of saturated hydrocarbons. They have high bond dissociation values therefore they are inert and non-toxic for living organisms.

The word CFCs stands for:

UHS 2019
Chemistry
Environmental Chemistry
Elimination Tool:

Electronic configuration of chromium (Proton number 24) is:

PMC 2020
Chemistry
d and f Block Elements
Elimination Tool:

Ninhydrin reacts with an amino acid to form a product that has the colour:

NUMS 2015
Chemistry
Alkyl Halides and Amines
Elimination Tool:

Which of the following has the correct order in terms of increasing acidity?

NUMS Mock 1
Chemistry
Acids, Bases and Salts

The rate of a reaction in general can be increased by all the following factors except:

NUMS Mock 2
Chemistry
Reaction Kinetics

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:

How many types of polymers are there based on their natures?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

Primary Alcohol is produced by reactions of Grignard’s reagent with _________ followed by hydrolysis in an acidic medium.

NTS 2011
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool: