The type of isomerism existing in a compound of molecular formula C2H6O is:

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Which of the following is not soluble In alcohol?

Aqua regia can dissolve noble metal due to the formation of

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

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

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

To conduct electricity through Ionic Solids, the ions should be:

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

Which of the following is not an isomer of other three:

A liquid has mass m and specific heat capacity c. The rate of change in temperature of the liquid is R. What is the rate at which heat is transferred from the liquid.

PMC Practice 2
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

Transition elements are colored in which type of compounds?

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

NUMS 2016
Chemistry
Hydrocarbons
Elimination Tool:

Densities of alkali metals are low due to:

PMC 2020
Chemistry
s and p Block Elements
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:

Chlorine upon reaction in cold NaOH yields:

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

Which one of the following has crystalline structure?

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

UHS 2017 Reconduct
Chemistry
Environmental Chemistry
Elimination Tool:

Nitrogen has oxides:

Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

NaNO3 on heating gives:

NUMS 2015
Chemistry
Periodicity in Elements
Elimination Tool:

Nitriles (RCN), on hydrolysis, in the presence of a mineral acid yield:

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Which of the following does not give iodoform test?

NUMS 2014
Chemistry
Aldehydes and Ketones
Elimination Tool:

In composition of natural gas, 0.17% is constituted by:

NUMS 2018
Chemistry
Hydrocarbons
Elimination Tool:

The radiations from a naturally occurring radioactive substance, as seen after deflection by a magnetic field in one direction, are:

NUMS Mock 2
Chemistry
Analytical Chemistry

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:

D block elements are also called as ____ ?

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

The chemical formula of Tincal is:

NTS 2019
Chemistry
Periodicity in Elements
Elimination Tool:

Polyester is used in:

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

n-Heptane can be converted into benzene by catalysts:

Down’s cell is used to prepare:

NTS 2019
Chemistry
Periodicity in Elements
Elimination Tool:

Which of following is an example of electrophilic attack on alcohols?

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

The elevation in boiling point ∆?? is equal to ebullioscopic constant ?? when the Molarity (?) of the solution is:

ETEA 2018
Chemistry
Solution and Colloids
Elimination Tool:

The C-H bond distance is the longest in:

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

Chemical formula of MaIonic Acid is?

Percentage of nitrogen in urea is:

Surface tension in a liquid is caused by?

NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:

Conversion of Electrical energy into chemical energy is

PMC Sample 2
Chemistry
Electrochemistry
Elimination Tool:

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

NUMS 2020
Chemistry
Atomic Structure
Elimination Tool:

There is double bond in oleic acid between carbon numbers:

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:

Carboxylic acids are formed by the hydrolysis of ________.

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

How many types of polymers are there based on their natures?

PMC 2021 Tested
Chemistry
Macromolecules
Elimination Tool:

Sulfur with HI acts as a:

An azeotropic mixture of two liquids has a boiling point higher than either of them when it:

NUMS 2016
Chemistry
Solution and Colloids
Elimination Tool:

Hydrolysis means reaction with

PMC Sample 3
Chemistry
Electrochemistry
Elimination Tool:

The alkenes can be formed by alcohols in the presence of

PMC Sample 3
Chemistry
Alcohols, Phenols and Ethers
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:

Le Chatelier’s principle explains effect of all of the following except

The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:

NUMS 2016
Chemistry
Solution and Colloids
Elimination Tool:

The breakdown of a substance with current is:

NUMS 2020
Chemistry
Electrochemistry
Elimination Tool:

How would an ammonium group affect the benzene ring for subsequent reactions?

NTS 2017
Chemistry
Alkyl Halides and Amines
Elimination Tool:

Carboxylic acids can be reduced to corresponding alcohols. Which of the following reagent can be used for this purpose?

UHS 2019
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Activation of the benzene ring in aniline can be decreased by treating with:

NUMS 2017
Chemistry
Hydrocarbons
Elimination Tool:

What is the catalyst used in the Haber process?

H₂ + N₂ ⟶ NH₃

PMC 2021 Tested
Chemistry
Industrial Chemistry
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 Mock 4
Chemistry
Alkyl Halides and Amines

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

PMC Sample 1
Chemistry
Chemical Equilibrium
Elimination Tool:

Alkyl groups In ethers are connected by?

Carbonyl group is present in

Chlorofluorocarbons (CFCs) are important compounds that are used as refrigerants but these are also responsible for Ozone layer depletion. If a Chlorofluorocarbon CFCl3 is present in stratosphere, which of it’s reaction intermediates are actually responsible for the breakdown of the ozone molecule?

UHS 2019
Chemistry
Environmental Chemistry
Elimination Tool:

The solubility product for BaSO4 , at 18-25°C is:

NTS 2015 DUHS and JSMU
Chemistry
Solution and Colloids
Elimination Tool:

Which type of isomerism depends on the distribution of carbon atoms on each side of the functional group?

PreMedPK MDCAT Mock 1
Chemistry
Hydrocarbons
Elimination Tool:

Electronegativity is defined as the power of an atom in a molecule to

) Plastic cannot be recycled by

In Cannizzaro’s reaction, Benzyl alcohol is obtained from?

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

Which of the following statements is true?

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

Cyanohydrins can be synthesized from ketones through:

PreMedPK MDCAT Mock 4
Chemistry
Aldehydes and Ketones
Elimination Tool:

Liquid crystals are used for:

Which one is NOT a nucleophile?

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

Identify the correct statement:

NUMS Mock 3
Chemistry
s and p Block Elements

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:

How are carboxylic acids formed from alcohol?

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

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:

Which alkyl halide has the lowest reactivity for a particular alkyl group?

NTS 2018
Chemistry
Alkyl Halides and Amines
Elimination Tool:

According to which phenomenon, “the properties of elements are the periodic function of their atomic number.”

NTS 2012
Chemistry
Periodicity in Elements
Elimination Tool:

Which is the correct electronic configuration of Chromium (24Cr)?

NUMS Mock 2
Chemistry
d and f Block Elements

Covalent character of hydrides decrease ________?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

Which of the following is the highest electronegative element?

The colour of transition metal complexes is due to:

NTS 2019
Chemistry
d and f Block Elements
Elimination Tool:

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

NUMS 2020
Chemistry
Chemical Equilibrium
Elimination Tool:

Geometry of SF6 is:

The chemical formula of chromyl chloride gas is?

NTS 2016 SMBBMC
Chemistry
Periodicity in Elements
Elimination Tool:

The acid rain water has pH:

UHS 2012
Chemistry
Environmental Chemistry
Elimination Tool:

The oxidation state of Cl in HClO4 is:

NTS 2019
Chemistry
Solution and Colloids
Elimination Tool:

Which of the following is a monosaccharide ?

Fatty Acids are:

Alkenes undergo:

NUMS Mock 2
Chemistry
Hydrocarbons

Half life period of the first order reaction depends upon:

NUMS 2015
Chemistry
Reaction Kinetics
Elimination Tool:

d subshell has

An element has configuration 2, 8, 1. It belongs to, ______.

NTS 2016 SMBBMC
Chemistry
Atomic Structure
Elimination Tool:

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called:

NUMS Mock 2
Chemistry
Fundamental Principles of Organic Chemistry