Percentage of nitrogen in urea is:

+3 and +5 oxidation states are often shown by:

14) Ethanol and Methanol can be separated by:

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:

Which one of the following compounds is an additional polymer?

UHS 2019
Chemistry
Macromolecules
Elimination Tool:

Water in solution acts as?

While calculating vapor pressure of a liquid in manometer, the column of mercury facing the vapors of a liquid is _____ due to pressure on surface of liquid in flask.

PMC Practice 1
Chemistry
Experimental Techniques in Chemistry
Elimination Tool:

Find the mass in grams of 1.69 mol of phosphoric acid.

PMC 2021 Tested
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Magnesium reacts with nitrogen to form:

PMC 2020
Chemistry
s and p Block Elements
Elimination Tool:

What one is the correct geometry of acetal?

PreMedPK MDCAT Mock 3
Aldehydes and Ketones
Elimination Tool:

Rate = K [N2O5] has _____ of reaction.

NTS 2013
Chemistry
Reaction Kinetics
Elimination Tool:

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:

IUPAC Name of formaldehyde is

Which one of these is a soluble carbohydrate:

In combustion analysis method CO2 is absorbed by?

Which of the following reactions is NOT shown by ketones?

NTS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

Which of the following is used as coagulation for latex in rubber industry

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

Solid CO2 dry ice has a structure just like:

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

n-Heptane can be converted into benzene by catalysts:

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

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

NUMS Mock 1
Chemistry
Hydrocarbons

“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:

Which one of the following is an example of a co-polymer?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

The rate of reaction:

NUMS 2020
Chemistry
Reaction Kinetics
Elimination Tool:

Which is not a meta directing group:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Choose the correct statement:

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

Which one is not related to evaporation?

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

All of the following react with KMnO4 except

NUMS 2017
Chemistry
Hydrocarbons
Elimination Tool:

Magnesiums keep on burning in:

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

The increase in the concentration of oxidizing agents in smog like H2O2, HNO3, PAN, and ozone in the air is called:

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

When animals inhale air, oxygen will move into the lungs due to difference in partial pressure of oxygen in lungs and atmosphere. This obeys

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

Gas is enclosed in a container of 20 cm3 with the moving piston. According to kinetic theory of gases, what will be the effect on freely moving molecules of the gas if temperature is increased from 20 C to 100 C?

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

To avoid the formation of toxic compounds with chlorine, which substance is used for disinfecting water?

NUMS 2016
Chemistry
s and p Block Elements
Elimination Tool:

_____ is a macromolecule found in blood.

PMC Practice 2
Chemistry
Macromolecules
Elimination Tool:

An ester is prepared by:

NUMS 2014
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

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:

Both 02 and 03 are Oxidizing agents but 02 is preferred because:

Which of the methods to prevent corrosion?

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

What is the measure of activation energy in an endothermic reaction?

UHS 2019
Chemistry
Thermochemistry
Elimination Tool:

Which of the following does not show variable valency?

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

Which of the following is paramagnetic

Which orbitals always possess same energy:

Which one of the following compounds act as a catalyst when alcohols react with carboxylic acids.

UHS 2018
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

The correct electronic configuration of Cr is:

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

Boiling point of C2H5OH is high than phenol because:

As the number of solute particles increases, the freezing point of the solution:

UHS 2012
Chemistry
Solution and Colloids
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:

________ is used as a preservative for life specimens.

NTS 2012
Chemistry
Macromolecules
Elimination Tool:

P2O5 is Hygroscopic powder which sublimes at:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

Mass of electron in a.m.u is:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

Which of the following properties does not belong to Gases?

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

Which of the following is a water cleaning halogen?

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

NUMS Mock 3
Chemistry
d and f Block Elements

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

Allotropes are of same?

PMC Practice 2
Chemistry
Macromolecules
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:

Methane gas is also known as

PMC Sample 2
Chemistry
Hydrocarbons
Elimination Tool:

For a reaction given below

C(s) + O2 (g) -> CO2 (g) + 394 kJ / mol

The enthalpy of reaction is

NTS 2016 SMBBMC
Chemistry
Thermochemistry
Elimination Tool:

Thermochemistry is very important to learn about _______.

NUMS Mock 3
Chemistry
Thermochemistry

Paramagnetism is due to:

The effect of temperature on the rate of a reaction is given by:

NUMS 2020
Chemistry
Reaction Kinetics
Elimination Tool:

All the collisions between the particles of gases are elastic in nature. What is meant by “Elastic Collisions”?

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

The strongest acid among the following is?

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

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

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

Solid CO2 dry ice has a structure just like:

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

The value of surface tension of isopropyl alcohol is?

NUMS Mock 2
Chemistry
Chemical Bonding

2 gasses at SIP, with equal volume and equal pressure will have same a

Sodium Benzoate on reacting with soda lime forms:

NUMS 2015
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

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 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:

Isotopes are the atoms of same element having different number of _____.

PMC Practice 26
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

CH3Cl + Cl2 —-> CH2Cl2 + HCl is an example of ?

NTS 2015 SMBBMC
Chemistry
Electrochemistry
Elimination Tool:

IUPAC name of wood spirit is

Which of these pollutants is produced by burning of coal and causes acid rain.

UHS 2018
Chemistry
Environmental Chemistry
Elimination Tool:

Paraldehyde is formed by:

Ethers are very good:

Water boils when:

When alpha particles are bombarded on beryllium

Which alkaline earth metal make peroxide?

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

Zwitter ion is formed when proton goes from:

NTS 2018
Chemistry
Alkyl Halides and Amines
Elimination Tool:

Friedel craft’s reaction gives?

Solar energy is stored through solar panels in?

The alloy Duralumin is composed of ______ of Al.

NTS 2018
Chemistry
Macromolecules
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:

All are enzymes involved in fermentation process except one:

NTS 2016 DUHS & JSMU
Chemistry
Macromolecules
Elimination Tool:

Which functional group is not a double bond?

NUMS 2019 Cancelled
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

A diabetic person’s exhaled breath contains propanone. A student tries to test the diabetes by asking the person to bubble the reagent with his exhaled breath. Which of the following reagents would give a positive result?

PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:

How many atmospheres correspond to 1050 torr?

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

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

NTS 2018
Chemistry
Chemical Bonding
Elimination Tool: