In a discharge tube, at room pressure there is

Earth’s crust Is Included In which sphere?

Which gases are produced when alcohol reacts with thionyl chloride?

PMC Sample 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

Burning of amorphous Boron in air forms

Maleic Acid and Fumaric Acid are:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

The rate of chemical reaction:

PMC Sample 2
Chemistry
Reaction Kinetics
Elimination Tool:

A crystal system having all sides (a, b and c) unequal and anglesα = β = γ= 90 is:

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

0.5 molar solution NaOH contains:

NUMS 2020
Chemistry
Solution and Colloids
Elimination Tool:

Benzene can be prepared from:

PreMedPK MDCAT Mock 2
Chemistry
Hydrocarbons
Elimination Tool:

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

NUMS Mock 2
Chemistry
Periodicity in Elements

The chemical reaction in which reactions require high amount of activation energy are generally:

NTS 2014
Chemistry
Reaction Kinetics
Elimination Tool:

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

Which of the following will react with water?

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

What is common when carboxylic acid is reacted with base or with alcohol?

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

Which of the following compounds possesses a single covalent bond between carbon and hydrogen?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

Ionic, covalent and co-ordinate covalent bonds are simultaneously present in the molecular geometry of:

NTS 2017
Chemistry
Chemical Bonding
Elimination Tool:

Which of the following reactions is NOT shown by ketones?

NTS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

Some substances lack definite heats of fusion. These substances are:

NUMS 2020
Chemistry
Thermochemistry
Elimination Tool:

Ca(OH)2 is sparingly soluble having solubility value 6.5 x 10-6. What’ll be its solubility:

UHS 2017 Reconduct
Chemistry
Solution and Colloids
Elimination Tool:

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

NUMS 2014
Chemistry
Hydrocarbons
Elimination Tool:

D block elements are also called as ____ ?

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

What is the order of the following reaction:

2NO +O2 -> 2NO2

NTS 2019
Chemistry
Reaction Kinetics
Elimination Tool:

Select the organic compound which belongs to Arene family:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

PVC is created from which halogen

Which of the following indicate the correct variation of electronegativity?

NUMS Mock 1
Chemistry
Chemical Bonding

Which of the following is an addition polymer?

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

The dipole moments of the given molecules (BF3, NF3, NH3) are such that:

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

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

PMC Sample 3
Chemistry
Carboxylic Acids and its Derivatives
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:

Real gases deviate significantly from ideal gas behavior at

Rectified spirits have a percentage of alcohol.

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

Metaformaldehyde is a result of?

Which of the following is least polarizable?

NUMS Mock 1
Chemistry
s and p Block Elements

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

NUMS Mock 2
Chemistry
Reaction Kinetics

Which one of the following was used as one of the earliest antiseptic and disinfectants?

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

R-X on reaction with alcohols form:

PMC 2020
Chemistry
Alkyl Halides and Amines
Elimination Tool:

For, the reaction:

N2 + 3H2 ⇌ 2NH3

The production of NH3 will be favored at:

NTS 2010
Chemistry
Chemical Equilibrium
Elimination Tool:

The pH of acid rain is

UHS 2014
Chemistry
Environmental Chemistry
Elimination Tool:

2 moles of octane ( C8H18) burn with 25 moles of oxygen (02) and produced __ moles of carbon dioxide along with 18 moles of water.

PMC Practice 20
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

For the equilibrium reaction 2 NO2 N2O4 (g) + 61 kJ, increase of temperature would:

NTS 2017
Chemistry
Chemical Equilibrium
Elimination Tool:

A single Chloride free radical can destroy ozone molecules up to:

NUMS Mock 1
Chemistry
Enviormental Chemistry

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

NUMS 2016
Chemistry
Hydrocarbons
Elimination Tool:

The conversion of phenol to benzene in the presence of zinc involves:

NUMS Mock 3
Chemistry
Alcohol, Phenols, and Ethers

If we balanced the following reaction , what is the net ionic charge on the right side of the equation?
__H+ +___ MnO4- + ____ Fe2+ →___ Mn2+ + ___ Fe3+ + ___ H2O

NTS 2014
Chemistry
Electrochemistry
Elimination Tool:

Vapor pressure of a liquid depends upon

Triatomic molecules have following movements:

NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:

Choose the correct statement:

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

SN2 reactions can be best carried out with:

NTS 2019
Chemistry
Alkyl Halides and Amines
Elimination Tool:

25 to 35 degree centigrade temperature is good for which of the following process?

Aluminum reacts with H2SO4 to produce

Which of the following causes suffocation?

If uncertainty in the position of an electron is zero the uncertainty in its Momentum is?

NTS 2015 DUHS and JSMU
Chemistry
Atomic Structure
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:

liquid whose thermodynamic property do not de ti)upon intermolecular forces Is

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

NUMS 2017
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Who introduced the concept of macromolecules?

PMC Practice 7
Chemistry
Macromolecules
Elimination Tool:

The carbonates of alkali metals are soluble in water except:

NUMS Mock 3
Chemistry
s and p Block Elements

Which catalyst is used in the preparation of alkyl halide from alcohols?

PMC Sample 2
Chemistry
Alkyl Halides and Amines
Elimination Tool:

11) Hydrogen has properties similar to:

The process of bringing an element in use after its complete half-life is:

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 is not a part of the human diet?

Half atmospheric pressure is:

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

If a molecule MX3 has zero dipole moment, the sigma bonding orbitals used by M are:

NUMS Mock 4
Chemistry
Chemical Bonding

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:

Reduction of benzene is presence of Ni gives:

NUMS 2019 Cancelled
Chemistry
Hydrocarbons
Elimination Tool:

Which one of the following is an acid?

Which of the following is not a primary pollutant of the troposphere?

NUMS 2019 Cancelled
Chemistry
Environmental Chemistry
Elimination Tool:

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:

NTS 2011
Chemistry
Chemical Equilibrium
Elimination Tool:

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

NUMS Mock 4
Chemistry
Chemical Bonding

The sugar unit in DNA molecule is:

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

Q.69 Carbon dioxide is an Example of

Left-handed helix in proteins secondary structure is called as ______ :

PMC Practice 4
Chemistry
Macromolecules
Elimination Tool:

Alkyl groups In ethers are connected by?

What is the mass of 10^-3 moles of MgSO4?

Why transition metals have strong metallic bonding?

PMC Sample 1
Chemistry
Periodicity in Elements
Elimination Tool:

Liquid crystals are used for:

Which of the following bond has highest bond energy value?

PMC Sample 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

What is the chemical formula of Epsom Salt?

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

NUMS 2017
Chemistry
Environmental Chemistry
Elimination Tool:

How many Dewar Structure of Benzene are present?

Which one is not related to evaporation?

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

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

NTS 2017
Chemistry
Electrochemistry
Elimination Tool:

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

NUMS Mock 1
Chemistry
Environmental Chemistry

2 grams of H2 molecules contain ______ molecules.

NTS 2012
Chemistry
Stoichiometry
Elimination Tool:

Which one of the following alkaline earth metal carbonates is thermally the most stable?

NUMS 2020
Chemistry
s and p Block Elements
Elimination Tool:

The atoms of hemoglobin is heavier than H-atoms

PMC Practice 23
Chemistry
Introduction to Fundamental Concepts of 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?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

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: