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

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

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

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

For a reaction 2A + B ⇌ C + D the active mass of B is kept constant and that of A is tripled. It is observed that the rate of reaction:

NTS 2013
Chemistry
Chemical Equilibrium
Elimination Tool:

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

Which of the following acts as an electrophile in the electrophilic substitution of benzene with bromine?

NUMS Mock 1
Chemistry
Hydrocarbons

Which of the following cannot be used to convert butanoic acid to butanoyl chloride?

NUMS 2016
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

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

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

During oxidation of unsymmetrical ketones which atom is oxidized?

PreMedPK MDCAT Mock 5
Aldehydes and Ketones
PMC Practice 28
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:

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

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

Definition of electrode potential is?

Formula mass is considered for compounds instead of their molecular mass.

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

If 4.6 gm of ethyl alcohol and 6.0 gm of acetic acid is kept at a constant temperature until equilibrium was established, 2.0 gm of unused acetic acid were present. What is the Kc?

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

When alkali metal react with water the fire Is produced clue to:

The influence of temperature on reaction rate is predicted by:

NUMS Mock 1
Chemistry
Reaction Kinetics

Which one is correct about Incineration of Industrial waste?

What is the chief ore of fluorine?

The unpolluted natural rainwater is slightly acidic due to the reaction of rain water with:

UHS 2011
Chemistry
Environmental Chemistry
Elimination Tool:

IUPAC name of C6H5-CH2-CH2-NH2 is:

NUMS Mock 4
Chemistry
Fundamental Principles of Organic Chemistry

Water boils when:

The relation between first and second ionization potentials of a given atom is:

NUMS Mock 4
Chemistry
Chemical Bonding

Phenol reacts with CH3COCl to give:

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

The polymer formed by the polymerization of vinyl acetate is:

NUMS 2019 Cancelled
Chemistry
Macromolecules
Elimination Tool:

Carbonyl group undergoes:

NUMS 2019 Reconduct
Chemistry
Aldehydes and Ketones
Elimination Tool:

Non-stoichiometric compounds are formed by:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

The major source of unburnt hydrocarbons in the atmosphere is / are:

NUMS 2016
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following has allotropic forms:

For a given mass of gas, if the pressure is reduced to half and its temperature is doubled, then volume V will become?

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

Which of the following reaction takes place when acetone reacts with HCN?

NUMS Mock 4
Chemistry
Aldehydes and Ketones

Polymerization of ethene produces which of the following polymers?

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

The unit used to express the relative atomic mass is called?

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

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

NUMS Mock 2
Chemistry
Reaction Kinetics

The number of moles of solute dissolved per liter of solution is called:

NTS 2012
Chemistry
Solution and Colloids
Elimination Tool:

d-d transitions in transition metals gives?

Lowering of vapor pressure Is directly proportional to: a)

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

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

The reduction of which of the following produces Hydrofluoric acid?

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

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

Oxidation number of Cr in K2Cr2O2 & K2Cr2O4 is:

Which of the following is not a derivative of benzene?

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

The difference between soft and hard X-rays is of:

NUMS 2016
Physics
Atomic Structure
Elimination Tool:

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

UHS 2017 Reconduct
Chemistry
Environmental Chemistry
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:

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

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

The aromatic compound having the functional group “OH” attached to It Is?

1 amu is?

) Which of the following is not a use of acetic acid?

For a single step reaction A ->B + 2C, the rate law is:

NUMS 2017
Chemistry
Reaction Kinetics
Elimination Tool:

Commercial hydrogen is obtained from:

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

Which of the following reagent is used to separate and purify carbonyl and non carbonyl compounds?

PMC 2020
Chemistry
Aldehydes and Ketones
Elimination Tool:

How many chain isomers can be obtained from the alkane C6H14?

NTS 2016 DUHS & JSMU
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

The oxidation number of Br in Br2 is:

NTS 2019
Chemistry
Electrochemistry
Elimination Tool:

Which is the configuration of Cr?

NUMS 2015
Chemistry
Atomic Structure
Elimination Tool:

Conversion of Electrical energy into chemical energy is

PMC Sample 2
Chemistry
Electrochemistry
Elimination Tool:

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

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

Which of the pair of gases is not a greenhouse gas?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

Which of the following has the least electron affinity value?

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

Which type of reaction takes place when a carbonyl compound is treated with a mixture of NaCN and an acid?

NUMS Mock 3
Chemistry
Aldehydes and Ketones

) Which one of the following is metalloid?

Sodium Is prepared by

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

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

The Vander Waal’s constant ‘If of a gas Is four times the:

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:

When the number of moles of reactants and products are equal in reversible reactions which parameter would not affect at equilibrium?

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

Molecular Formula of Propane is:

The false statement regarding saline hydrides is:

NTS 2014
Chemistry
s and p Block Elements
Elimination Tool:

Who introduced the concept of macromolecules?

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

Statement of Charles Law:

Which of the following acids is used for Etching glass?

NTS 2011
Chemistry
Acids, Bases and Salts
Elimination Tool:

The basic character of alkali metal oxides:

In Contact Process arsenic impurities act as poison for:

NUMS 2019 Reconduct
Chemistry
Periodicity in Elements
Elimination Tool:

Aqueous solutions of Iodine and Sodium hydroxide were mixed in a round bottom flask at 70 C. Following chemical reaction was carried out.

3I2 + 6 NaOH -> NaIO3 + NaI + H2O
This reaction is termed as;

UHS 2019
Chemistry
Solution and Colloids
Elimination Tool:

Who rejected vital force theory

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following will not undergo aldol condensation?

PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:

PolymerizatIon of ______ produces synthetic rubber.

PMC Sample 1
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following is NOT a “raw material” used in the Solvay process?

NTS 2016 SMBBMC
Chemistry
Macromolecules
Elimination Tool:

Which of the following is not a property of liquids:

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

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

Methyl Magnesium Bromide reacts with formaldehyde. The product will be:

Which transition metal is used the most in industries?

PMC 2021 Tested
Chemistry
d and f Block Elements
Elimination Tool:

The expression PV = nRT represents the:

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

H2SO4 has great affinity for water because:

NTS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

lanthanide Contraction is phenomenon of block :

Vinyl bromide can be prepared from:

Which ion will have a maximum value of the heat of hydration?

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

Which of the following bonds Is the weakest?

A reaction with a tendency of occurring in forward and backward direction simultaneously is termed as

PMC Sample 2
Chemistry
Chemical Equilibrium
Elimination Tool:

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
Elimination Tool:

Which one of the following is not a heterocyclic compound?

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

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:

Chemical formula of Malonic acid:

Which statement about liquids is not correct?