Why transition metals have strong metallic bonding?

PMC Sample 1
Chemistry
Periodicity in Elements
Elimination Tool:

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

NUMS 2016
Physics
Atomic Structure
Elimination Tool:

Phenol Acts as

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:

Polyester is used in:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

Change in Pressure will only affect the substances which are in:

PMC Practice 4
Chemistry
Experimental Techniques in Chemistry
Elimination Tool:

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

NUMS Mock 3
Chemistry
Alcohol, Phenols, and Ethers

What is the major reason for S02 emissions?

London forces are present in

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
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 formula of washing soda is:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

Which of the following has maximum Hydration power?

NUMS Mock 3
Chemistry
Chemical Bonding

Aluminium nitrate is not used for ai

The Unit cell with crystallographic dimensions a = b ≠c ,α = β = γ = 90 degrees is:

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

What are the products of destructive distillation of coal?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

Transition elements have coloured compounds because:

NTS 2013
Chemistry
Periodicity in Elements
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:

Chromium dissolves in dilute H2SO4 for [Cr(H2O)6]2. The colour of the ion is:

NUMS 2016
Chemistry
d and f Block Elements
Elimination Tool:

The enthalpy of certain reactions at 273 K is -20.75 kJ. The enthalpy of the same reaction at 373 K (if heat capacities of reactants and products are the same) will be:

NTS 2017
Chemistry
Thermochemistry
Elimination Tool:

Which of the following has lowest e/m ratio?

PMC 2020
Chemistry
Atomic Structure
Elimination Tool:

Limiting reactant controls the amount of _.

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

Which one of the following is used as an anesthetic?

Which of the following is a Marco-nutrient

Which of the following has the correct order in terms of increasing acidity?

NUMS Mock 1
Chemistry
Acids, Bases and Salts

Which of the following statements best describes how a catalyst works

NUMS 2018
Chemistry
Reaction Kinetics
Elimination Tool:

When does a gas deviate the most from its ideal behavior ?

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

Which of the following is unstable?

1 calorie = ______ Joules.

NTS 2012
Chemistry
Chemistry of Life
Elimination Tool:

The structure of cyclohexane is:

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

Which of the following is an example of aromatic carboxylic acid?

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

Noble gasses have?

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

NUMS Mock 2
Chemistry
Periodicity in Elements

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

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

What is the heat of vaporization of radon?

The electrolyte used in fuel cell is:

NUMS 2019 Reconduct
Chemistry
Electrochemistry
Elimination Tool:

Spectrum of which series is in the UV region?

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

If the value of ‘Kc’ is very large then, it shows that ______ completed.

NUMS 2018
Chemistry
Chemical Equilibrium
Elimination Tool:

Which of the following elements has the lowest ionistion enthalpy?

PMC Sample 2
Chemistry
Periodicity in Elements
Elimination Tool:

Oxidation of alcohol converts it into?

IUPAC name of this is (CH3)2 – CH – CH (C2H5) – C(CH3)3

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

Mass spectrometer is used to determine which of the following quantity?

Which of the following carboxylic acids is used in medicine as a local irritant?

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

Thermochemistry is very important to learn about _______.

NUMS Mock 3
Chemistry
Thermochemistry

Which of the following bond has highest bond energy value?

PMC Sample 1
Chemistry
Alkyl Halides and Amines
Elimination Tool:

The net heat change in a chemical reaction is the same whether it is brought about in two or more different ways in one or several steps. This is known as:

NTS 2019
Chemistry
Thermochemistry
Elimination Tool:

The amount of solute present in the given amount of solvent is called:

NTS 2017
Chemistry
Solution and Colloids
Elimination Tool:

The equation N2(g)+ 3H2(g)⇋ 2NH3(g)represents:

PMC 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

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:

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

NUMS Mock 1
Chemistry
Environmental Chemistry

What volume in dm3 of KCl is obtained in the following equation if the volume of KCIO3 at the beginning of the reaction is 20 dm3?

2KClO3 -> 2KCl + 3O2

NTS 2016 DUHS & JSMU
Chemistry
Stoichiometry
Elimination Tool:

Primary, Secondary Tertiary alcohols can be distinguished by Lucas test in which .. appear

If the reaction, P + Q → R + S, is described as being of zero-order with respect to P, it means that:

NTS 2012
Chemistry
Reaction Kinetics
Elimination Tool:

Which of the following will react with water?

NUMS Mock 1
Chemistry
Introduction to Fundamental Concepts of Chemistry

In which of the following will water evaporate earlier?

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

Catalytic hydrogenation of alkenes exhibits:

NUMS Mock 2
Chemistry
Hydrocarbons

The necessary condition for Boyle’s law to hold is that the process must be ______.

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

What will be the mass in grams of 12 gram atom of carbon atoms?

Which of the following ions will show maximum hydration?

NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

Higher order alcohols

The bond angles in benzene ring are:

PMC Sample 1
Chemistry
Hydrocarbons
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:

Vinegar is basically acid:

Which of the following has the higher bond forces amount its molecules

Thermochemistry is very important to learn about

PMC Sample 1
Chemistry
Thermochemistry
Elimination Tool:

Surface tension in a liquid is caused by?

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

How many bonds are there in CO?

Which of the following compound has the highest boiling point?

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:

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

Phenol reacts with calcium carbonate and evolve ________?

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

Which step should be repeated over and over to get a variety of substituted products?

PreMedPK MDCAT Mock 5
Chemistry
Hydrocarbons
Elimination Tool:

Which property of the Group II elements (magnesium to barium) and their compounds increases with an increasing proton (atomic) number?

NUMS 2016
Chemistry
s and p Block Elements
Elimination Tool:

What is the correct name for this structure?

NUMS Mock 1
Chemistry
Fundamental Principles of Organic Chemistry

Free radical reactions take place in the presence of ______?

PMC Practice 1
Chemistry
Hydrocarbons
Elimination Tool:

Blue litmus turns red in a solution of PH

NUMS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

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

NTS 2014
Chemistry
Reaction Kinetics
Elimination Tool:

In which of the following reagent Cupric citrate complex is formed?

PreMedPK MDCAT Mock 5
Chemistry
Aldehydes and Ketones
Elimination Tool:

In which of the following nitrogen compounds, does N has the highest oxidation state?

NTS 2018
Chemistry
Electrochemistry
Elimination Tool:

Triads were introduced by

Ketones undergo reaction with which compound in the presence of acid to form oximes

Within each pair of elements F & Cl, S & Se, and Li & Na respectively, the elements that release more energy upon an electron gain are:

PMC Sample 3
Chemistry
Periodicity in Elements
Elimination Tool:

For a gaseous phase reaction, when number of moles of reactants and products are equal:

PMC 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

Which of the following is not the use of bleaching powder?

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

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

UHS 2012
Chemistry
Solution and Colloids
Elimination Tool:

Benzene can be prepared from:

NTS 2011
Chemistry
Hydrocarbons
Elimination Tool:

Potassium, Rubidium, Cesium react with oxygen to form which types of oxides?

PMC 2020
Chemistry
s and p Block Elements
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:

which type of hybridization doesn’t exist?

Hydrocarbons which burn with a smoky flame are called:

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

Molecular Formula of Propane is:

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

NUMS Mock 3
Chemistry
s and p Block Elements

Sodium Benzoate on reacting with soda lime forms:

NUMS Mock 4
Chemistry
Carboxylic Acids and its Derivatives

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

NUMS 2017
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool: