Bond energy of C-CI in kJ/moles Is:

When CH3 is attached to the benzene ring, it makes the ring a:

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons
Elimination Tool:

ΔH = ΔE + PΔV is the change in enthalpy at constant ________.

NUMS 2018
Chemistry
Thermochemistry
Elimination Tool:

Which halogen is used as a refrigerant?

Molal freezing point constant of water is:

UHS 2013
Chemistry
Solution and Colloids
Elimination Tool:

Cyanohydrins when reacted with mineral acid produces ________?

PMC Sample 2
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Heat of Neutralization is defined as:

The colour of methyl orange in base is?

NTS 2015 SMBBMC
Chemistry
Acids, Bases and Salts
Elimination Tool:

The hybridization of atomic orbitals of N2+, NO3-, and NH4+are, respectively:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

The four bonds of carbon in methane are directed towards the corners of a:

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following does not show variable valency?

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

The molecular formula expresses?

NTS 2015 SMBBMC
Chemistry
Stoichiometry
Elimination Tool:

Oxidation Number of all the elements in the free state is?

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

Oxidation state of P in Mg2P3O5 Is

An example of a solution not in equilibrium is:

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

Carboxylic acid reduction to alcohol can be achieved by using?

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Which if the following has the greatest difference between it’s first and second ionization energies?

NUMS 2014
Chemistry
Periodicity in Elements
Elimination Tool:

Which of the following is not a disaccharide?

Which one has fruity smell?

The Lattice energy is also called as:

PMC 2020
Chemistry
Chemical Bonding
Elimination Tool:

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

NTS 2013
Chemistry
Hydrocarbons
Elimination Tool:

In the reaction of m- chlorotoluene with KNH2 in liquid NH3, the major product is:

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

What is the temperature at which the volume of gas is said to be zero?

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

Which element does not show magnetic properties?

Generic formula of cycloalkane is:

PMC 2020
Chemistry
Hydrocarbons
Elimination Tool:

A graph between volume and temperature gives a straight line which cuts the temperature axis at:

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

Formula of hydrogen peroxide

The flavour of amyl butyrate is:

PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:

Which compound shows maximum hydrogen bonding with water?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

Q.83 Alcohol oxidation gives carboxylic acid through

Color of Epsom salt Is

Solution contains 85.5 g of sucrose (C12H22O11) in 250 cm3. What is its molarity?

UHS 2019
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Which of the following acid solutions is used for the seasoning of food?

PMC Practice 3
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

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

NUMS Mock 1
Chemistry
Stoichiometry

In the following reaction:

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

NTS 2014
Chemistry
Electrochemistry
Elimination Tool:

Molecular substances differ from ionic substances in:

A polymer called Bakelite is formed by the reaction of phenol with:

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

If pressure and volume of a gas are variable while temperature remains constant, this belongs to

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

The elevation in boiling point ∆?? is equal to ebullioscopic constant ?? when the Molarity (?) of the solution is:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

How many balloons of capacity 0.25dm3 at 1atm pressure can be filled from a hydrogen gas cylinder of 5dm3 capacity at 10 atm?

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

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

Statement of Charles Law:

The value of S.T.P for 1 mole of any ideal gas is:

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

X-rays are defined as:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

Commercial hydrogen can be obtained by the action of steam on:

NUMS Mock 3
Chemistry
s and p Block Elements

Tincture of Iodine is:

NUMS 2015
Chemistry
Aldehydes and Ketones
Elimination Tool:

950 torr corresponds to:

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

F-block elements are called?

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

Which statement about liquids is not correct?

The rate of reaction is equal to the specific rate constant, when:

The reduction of nitrile produced a compound of formula C3H7NH2. Which one of the following compounds would be produced if the same nitrile was hydrolyzed by heating with dilute hydrochloric acid?

NUMS 2016
Chemistry
Alkyl Halides and Amines
Elimination Tool:

In alkanes, each carbon has hybridization:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

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

Which of the following elements has the lowest ionistion enthalpy?

PMC Sample 2
Chemistry
Periodicity in Elements
Elimination Tool:

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

NUMS Mock 2
Chemistry
Reaction Kinetics

In a reaction:
A+B 2C when equilibrium was attained, the concentration was
[A]=[B]=4 moles/dm3
[C]=6 moles/dm3
the equilibrium constant Kc of this reaction is:

NUMS Mock 4
Chemistry
Chemical Equilibrium

Which one of these is paramagnetic?

Mass of a neutron in amu is?

Which one of the following has crystalline structure?

Alkenes undergo:

NUMS Mock 2
Chemistry
Hydrocarbons

Farming salt is:

NUMS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

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

UHS 2011
Chemistry
Solution and Colloids
Elimination Tool:

The bond, which is based on attractive forces between oppositely charged ions, is:

NUMS Mock 1
Chemistry
Chemical Bonding

A certain radioactive isotope has a half-life of 50 days. Fraction of the material left behind after 100 days will be:

NUMS Mock 2
Chemistry
Analytical Chemistry

Solid NaCl is a bad conductor of electricity because:

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

Which of the following compounds is formed when sodium burns in excess of air?

NTS 2014
Chemistry
s and p Block Elements
Elimination Tool:

The properties of liquid crystals are intermediate between crystals and:

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

Who rejected vital force theory

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

The number of bond(s) between carbon and nitrogen atoms in a Nitrile is:

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:

Which of the following statements best describes how a catalyst works

NUMS 2018
Chemistry
Reaction Kinetics
Elimination Tool:

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

UHS 2019
Chemistry
Hydrocarbons
Elimination Tool:

PVC is created from which halogen

Harmful and undesirable reaction of a metal when exposed to the atmosphere or any chemical agent is known as:

NTS 2010
Chemistry
Macromolecules
Elimination Tool:

Which of the following has the highest electrical conductivity?

NUMS Mock 2
Chemistry
Solution and Colloids

Polymerization is of how many types:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

In Balancing redox equation, the first thing is to:

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

The following sketch shows the variation in a physical property of third period elements against their atomic numbers:

What physical property is plotted in this sketch?

NUMS Mock 2
Chemistry
Periodicity in Elements

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

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

Actual yield is always less than theoretical yield due to

PMC Practice 27
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Propyl Acetate and valeric acid are which type of isomers

NUMS 2018
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

For the following exothermic reaction, a decrease in temperature will shift the equilibrium towards: 2NO (g) + O2(g) -> 2NO2 (g)

NTS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

Paramagnetic elements contain:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

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:

If any amino acids contain greater number of NH2, it is:

NUMS 2019 Cancelled
Chemistry
Alkyl Halides and Amines
Elimination Tool:

In which of the following the oxidation state of S is the highest

Which of the following is constant during an isothermal process?

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

NUMS 2017
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

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

NTS 2014
Chemistry
Thermochemistry
Elimination Tool:

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

NUMS Mock 4
Chemistry
Alcohols, Phenols and Ethers

One mole of Oxygen has number of atoms as compared to one mole of Nitrogen

For a chemical reaction A + B, the threshold energy of the reaction is 31 KJ/mole. The average internal energy of A is 12 KJ/mole. What will be the activation energy of A?

NUMS 2018
Chemistry
Thermochemistry
Elimination Tool:

Which statement is true for K2(Cu(CN)4) ?

PMC Practice 4
Chemistry
d and f Block Elements
Elimination Tool:

In depression of freezing point, freezing constant Is divided by

Spectrometry is used when reactants and products absorb _____.

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