Activator of phosphatase enzyme is _________.

PMC Practice 3
Chemistry
Macromolecules
Elimination Tool:

Which of the following compounds are added to ethanol to make it unfit for drinking?

PreMedPK MDCAT Mock 1
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

Which of the following statements is correct?

NTS 2011
Chemistry
Atomic Structure
Elimination Tool:

Which one of the following has crystalline structure?

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:

To find the number of molecules in a given compound which of the following is employed?

In which of the following will water evaporate earlier?

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

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:

The geometry of the complex compounds usually depends upon:

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

A gas that reacts with CaO and not with NaHCO3 is:

NTS 2017
Chemistry
Periodicity in Elements
Elimination Tool:

When 18 x 10-3 moles/dm3 of acetic acid react with 22 x 10-3 moles/dm3 of ethyl alcohol to form 40 x 10-3 moles/dm3 of ethyl acetate and 40 x 10-3 moles/dm-3 of water. Find the value of equilibrium constant (kc):

NTS 2010
Chemistry
Chemical Equilibrium
Elimination Tool:

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

NTS 2014
Chemistry
Thermochemistry
Elimination Tool:

Physical properties of Ethyne is/are:

NTS 2015 DUHS and JSMU
Chemistry
Hydrocarbons
Elimination Tool:

What is the correct name for this structure?

NUMS Mock 1
Chemistry
Fundamental Principles of Organic Chemistry

Acetic anhydride is a product of acetic acid, as a result of the following reaction:

NUMS 2020
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Which of the following will not undergo aldol condensation?

PreMedPK MDCAT Mock 3
Chemistry
Aldehydes and Ketones
Elimination Tool:

is the process of transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.

Polystyrene is an additional polymer. Which one of the following structures represents
the monomer of polystyrene?

UHS 2014
Chemistry
Environmental Chemistry
Elimination Tool:

The heat of a reaction can be calculated by using:

NTS 2010
Chemistry
Thermochemistry
Elimination Tool:

Which one of the following reagents is used to distinguish between aldehydes and ketones?

NUMS Mock 1
Chemistry
Aldehydes and Ketones

The shape of SnCl2 is:

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

Phenylmethyl ketone can be converted into ethyl benzene in one step by using:

NUMS Mock 4
Chemistry
Aldehydes and Ketones

An ester is prepared by the reaction of:

NTS 2011
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Which one of the following is the structure of Teflon?

UHS 2018
Chemistry
Alkyl Halides and Amines
Macromolecules
Elimination Tool:

Limiting reactant controls the amount of _.

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

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:

Example of metamerism is:

Which of the following pair groups belong to meta directing Groups?

NTS 2019
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

In alkanes, each carbon has hybridization:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Born Haber cycle is used to determine:

PMC 2020
Chemistry
Thermochemistry
Elimination Tool:

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

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:

Solubility of carboxylic acids ______?

PMC Sample 1
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

The halogens are known as:

It is the fact that 22.414 cm3 of any gas has a different masses but the same number of

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

Catalytic hydrogenation of alkenes exhibits:

PreMedPK MDCAT Mock 4
Chemistry
Hydrocarbons
Elimination Tool:

Equilibrium constant has no units if?

Which one Is not possible a)

A sample of 0.7 moles of metal ‘M’ reacts completely with an excess of fluorine to form 45 g of MF2. How many moles of F are present in it?

PMC Practice 17
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

The unit of the rate constant is the same as that of the rate of reaction in:

PMC 2020
Chemistry
Reaction Kinetics
Elimination Tool:

IUPAC name of propionaldehyde is:

A system at equilibrium can be disturbed by:

NTS 2013
Chemistry
Chemical Equilibrium
Elimination Tool:

Solid NaCl is a bad conductor of electricity because:

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

If we are given the mass of a substance ,we can calculate the_______ of the other substance with the help of a balanced chemical equation.

Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

Which of the following compounds has the empirical formula, (CH2O) and reacts with sodium hydroxide?

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

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 reactions is used for the production of alcohols on industrial scale?

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

The geometry of H2S and its dipole moment are:

NTS 2016 DUHS & JSMU
Chemistry
Chemical Bonding
Elimination Tool:

Which one of the following free radical is most stable:

NUMS 2017
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Which of the following is an addition polymer?

NUMS 2019 Reconduct
Chemistry
Macromolecules
Elimination Tool:

phenol, and ethers are the derivatives of?

What is the oxidation state of Mn in K2MnO4?

Ketone reacts with Grignard reagent to form ______ in acidic media?

NTS 2015 SMBBMC
Chemistry
Aldehydes and Ketones
Elimination Tool:

Among the most common disaccharides, one of the following is present in the milk?

UHS 2014
Chemistry
Industrial Chemistry
Elimination Tool:

If the ratio of initial concentration of the reagents is greater than the Kc then:

NTS 2011
Chemistry
Chemical Equilibrium
Elimination Tool:

Which of the following intermediate has the complete octet around the carbon atom.

NUMS 2018
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Which one of the following is saturated hydrocarbon?

The order of decreasing power as an oxidizing agent is

Crystal structure of diamond is

According to Charles Law, when temperature is reduced to half the volume will be

d-block elements are present _____________ in the periodic table ?

PMC Sample 3
Chemistry
d and f Block Elements
Elimination Tool:

Which of the following is not a derivative of benzene?

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

SN2 reactions can be best carried out with:

NTS 2019
Chemistry
Alkyl Halides and Amines
Elimination Tool:

Which of the following is typical transition element?

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

Current in electrolysis is carried through:

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

The rate of diffusion of hydrogen gas as compared to that of oxygen gas is:

PMC Sample 1
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

In a vessel, 10 g N2, 10 g H2 and 10g O2 are present. Which one will have least number of atoms?

PMC 2020
Chemistry
Stoichiometry
Elimination Tool:

Transfer of heat from hot surroundings to a cold refrigerator is an example of:

NUMS Mock 4
Chemistry
Thermochemistry

The efficiency of a chemical reactions can be checked by calculating ________ yield.

PMC Practice 30
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

The amount of energy associated with quantum of radiation is directly proportional to:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

Why is water added after the reduction process of aldehyde and ketone with LiAlH4?

NUMS Mock 4
Chemistry
Aldehydes and Ketones

The rate constant of a first-order reaction is 3 x 10-6 per second.

If the initial concentration is 0.10 M, the initial rate of reaction is:

NUMS 2018
Chemistry
Reaction Kinetics
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:

The lightest positive rays obtained is from:

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

14) Ethanol and Methanol can be separated by:

Element that is not found in Free State is?

Transfer of heat from hot surroundings to a cold refrigerator is an example of:

NUMS 2014
Chemistry
Thermochemistry
Elimination Tool:

The number of sigma and pi bonds in 1-butene-3-yne?

NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:

Actual yield is always less than theoretical yield due to

PMC Practice 29
Chemistry
Introduction to Fundamental Concepts of Chemistry
Elimination Tool:

) If 2-butene is treated with KMn04, the product is:

The compound with more than 10% solubility in pure water is:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

Hydrolysis means reaction with

PMC Sample 3
Chemistry
Electrochemistry
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:

A solution having pH = 0 is

) Acetic acid is used in making

The maximum number of electrons that an orbital can accommodate is/are:

NTS 2010
Chemistry
Atomic Structure
Elimination Tool:

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:

The e/m value is maximum for _____ gas becauseof _____ value of “m” for positive rays obtained from it.

PMC Practice 6
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

The product formed by acid catalysed hydration of 2 – phenyl propene is:

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool: