In combustion analysis method CO2 is absorbed by?

The rate of diffusion of liquids is ________ than gases.

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

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
Elimination Tool:

Butanone on oxidation with K2Cr2O7 / H2SO4 forms:

NUMS 2020
Chemistry
Aldehydes and Ketones
Elimination Tool:

Molecular ions are produced by passing a high energy electron beam or an x-ray beam through _______.

PMC Practice 21
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Iso-Butyl alcohol has following carbon attached to hydroxyl group:

NUMS Mock 3
Chemistry
Alcohol, Phenols, and Ethers

Geometry of SF6 is:

Alkanes having five to seventeen carbon atoms per molecule are:

NTS 2013
Chemistry
Hydrocarbons
Elimination Tool:

If the matter in a given system at a given condition is divided into two equal parts, then the value of the extensive properties will become:

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

The carbonic acid which Is named after butter is:

In the NaCl crystal, chloride ions present at the face center are distributed in:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

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:

Variable valency is shown by which of the following elements?

Aerobic decomposition of organic matter i.e. glucose by bacteria in water sediments produces

UHS 2013
Chemistry
Environmental Chemistry
Elimination Tool:

Which one of the following molecules has the shortest distance of carbon atoms?

PreMedPK MDCAT Mock 3
Chemistry
Hydrocarbons
Elimination Tool:

When was electron discovered?

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:

Transfer of heat from hot surroundings to a cold refrigerator is an example of:

NUMS 2014
Chemistry
Thermochemistry
Elimination Tool:

Oxides of xenon are formed from:

Simplest aromatic aldehyde has number of hydrogen atoms.

Oxidation is defined as:

In a zero-order reaction, the rate is independent of:

NTS 2019
Chemistry
Reaction Kinetics
Elimination Tool:

Which of the following has maximum Hydration power?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

20 cm3 of a gaseous hydrocarbon was completely burnt in an excess of oxygen 60 cm3 of carbon dioxide and 40 cm3 of water vapours were formed, all volumes being measured at the same temperature and pressure. What is the formula of the hydrocarbon?

NTS 2015 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

Phenol reacts with CH3COCl to give:

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

The common oxidation number of halogens is:

PMC 2020
Chemistry
Electrochemistry
Elimination Tool:

Different kinds of atoms of the same element are called isotope having different __________but same ___________ properties.

PMC Practice 1
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Which of the following is most soluble in water?

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

The Haber Process is used to produce ammonia commercially according to the following equilibrium: N2(g) + 3H2g = 2NH3g + energy Which of the following conditions will produce the highest yield of ammonia?

Which of the following hybrid orbitals has maximum “s” character?

PMC 2020
Chemistry
Chemical Bonding
Elimination Tool:

The compound ‘leaf alcohol’ is partly responsible for the smell of new – mown grass

CH3CH2CH=CHCH2CH2OH

Leaf alcohol

Which two compounds will be formed when ‘leaf alcohol’ is oxidized using hot, concentrated manganate (VII) ions?

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

Formula of propene is

Which of the following molecules has the largest number of shared pairs of electrons?

NUMS Mock 4
Chemistry
Chemical Bonding

Scandium, Sc, is the first of the 3d blocks of elements in the Periodic table.

Which properties of Sc approve the above fact?

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

A fixed mass of an ideal gas is contained in a cylinder at constant temperature. Now, the pressure of the gas is decreased.

What happened to the molecules of gas?

PMC Practice 1
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

The change in concentration of reactant or product per unit time is called:

NTS 2016 DUHS & JSMU
Chemistry
Chemical Equilibrium
Elimination Tool:

By treating CO2 with Grignard’s reagent, the following compound is obtained;

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

Which of the following sets is of coinage metals?

PMC Sample 2
Chemistry
d and f Block Elements
Elimination Tool:

The geometry of H2S and its dipole moment are:

NTS 2016 DUHS & JSMU
Chemistry
Chemical Bonding
Elimination Tool:

The indicator is a colored compound?

The substance which conducts electricity by the movement of ions:

NUMS Mock 3
Chemistry
Chemical Bonding

Ionization energy depends upon:

The e/m value is maximum for _____ gas becauseof _____ value of “m” for positive rays obtained from it.

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

The stability of ionic crystal depends principally on:

NTS 2014
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

When gases expand, this causes:

Which statement is correct?

PMC Sample 3
Chemistry
Solution and Colloids
Elimination Tool:

A catalyst catalyzes reaction by:

Shape of the orbital occupied by an electron is defined by:

NTS 2016 DUHS & JSMU
Chemistry
Atomic Structure
Elimination Tool:

Aromatic compounds burn with a sooty flame because:

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Au3+ has __________ configuration.

PMC Practice 5
Chemistry
d and f Block Elements
Elimination Tool:

Which one has valency other than one?

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

Which is the metal, whose elevated concentration is harmful to fish as it clogs the gills thus causing suffocation?

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

The boiling point of water is higher than other hydrides because water molecules can form:

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:

The nature of Binding Force in Ionic Crystals is

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

Methyl orange is _______ in acidic solutions.

NTS 2018
Chemistry
Acids, Bases and Salts
Elimination Tool:

The test used to distinguish among primary, secondary, and tertiary alcohols is:

NUMS Mock 4
Chemistry
Alcohols, Phenols and Ethers

Which statement is true about electron affinity?

NUMS Mock 2
Chemistry
Periodicity in Elements
Chemical Bonding

To conduct electricity through Ionic Solids, the ions should be:

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

Which of the following is least polarizable?

NUMS Mock 1
Chemistry
s and p Block Elements

When Gypsum is heated to about 100° C, it losses some water of crystallization and becomes:

NTS 2011
Chemistry
States of Matter – Gases, Liquids and Solids
s and p Block Elements
Elimination Tool:

The heat of a reaction can be calculated by using:

NTS 2010
Chemistry
Thermochemistry
Elimination Tool:

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

The gas which is mainly produced in landfills from the waste is:

UHS 2016
Chemistry
Environmental Chemistry
Elimination Tool:

The carbonates of alkali metals are soluble in water except:

NUMS 2020
Chemistry
s and p Block Elements
Elimination Tool:

Which of the following transition metals has the highest variable oxidation state?

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

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

Pick correct pair about the difference between E1 and E2 mechanism of methyl bromide forming an alkene.

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

The process in which electric current is used to carry out a non-spontaneous redox reaction is called:

NUMS 2018
Chemistry
Electrochemistry
Elimination Tool:

The addition of HBr to an unsymmetrical alkenes follows?

PreMedPK MDCAT Mock 2
Chemistry
Hydrocarbons
Elimination Tool:

Which one of these reacts rapidly with water at room temperature?

20 cm3 of a gaseous hydrocarbon was completely burnt in an excess of oxygen 60 cm3 of carbon dioxide and 40 cm3 of water vapours were formed, all volumes being measured at the same temperature and pressure. What is the formula of the hydrocarbon?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following is the reducing agent:

NUMS 2015
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Ethanol, when reacted with PCI5 , gave A, POCl3, and HCI. A reacts with AgNO2 to form B and AgCl. A and B are respectively:

NTS 2014
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

Which of the following Is the smallest unit?

Gas which has percentage equal to 78% In air Is the

Outer transition elements belong to

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

Boiling point constants help us to determine:

UHS 2012
Chemistry
Solution and Colloids
Elimination Tool:

Which of the following will react with water?

NUMS 2016
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

What is the major reason for S02 emissions?

Carbonyl group undergoes:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:

Group 1A and 11A are known as: ) s block elements d) P block elements

According to the general gas equation, density of an ideal gas depends upon:

PMC 2020
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

Which of the following bond has highest bond energy value?

PMC Sample 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

The color of transition metal complexes is due to transition of electrons between:

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

The unit used to express the relative atomic mass is called

PMC Practice 4
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

When an electrophilic reagent attacks on alcohol, ________.

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

Exothermic Reactions heat is

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

Solar energy is stored through solar panels in?

Which of the following is the correct order of increasing boiling point?

NUMS Mock 1
Chemistry
Alcohol, Phenols, and Ethers

The unhybridized p orbitals of benzene are present in the form of _________.

PMC Practice 2
Chemistry
Hydrocarbons
Elimination Tool:

Which of following has “higher boiling”and “melting point”?

PreMedPK MDCAT Mock 5
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

Sodium Benzoate on reacting with soda lime forms:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives