If any amino acids contain greater number of NH2, it is:

NUMS Mock 3
Chemistry
Alkyl Halides and Amines

Who rejected vital force theory

PMC Sample 3
Chemistry
Hydrocarbons
Elimination Tool:

Red lead is:

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

Boiling point of hydrides of the 4th period is larger than __________.

PMC Practice 2
Chemistry
Periodicity in Elements
Elimination Tool:

When animals inhale air, oxygen will move into the lungs due to difference in partial pressure of oxygen in lungs and atmosphere. This obeys

PMC Sample 1
Chemistry
States of Matter – Gases, Liquids and Solids
Elimination Tool:

Which of the following has six isotopes?

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

if the crystal structure of Graphite is Hexagonal, the crystal system of Diamond will be:

Non-stoichiometric compounds are formed by:

NTS 2013
Chemistry
Periodicity in Elements
Elimination Tool:

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

NTS 2018
Chemistry
Electrochemistry
Elimination Tool:

In which of the following cases are the benzene rings isolated?

NUMS 2015
Chemistry
Hydrocarbons
Elimination Tool:

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

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

GN lewis described which one of the following bonds?

NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:

Which of the following gas is more ideal at STP?

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

Either Is dangerous In which of the following states?

Which of the following is the correct order of electronegativity (from highest to lowest)?

NTS 2015 SMBBMC
Biology
s and p Block Elements
Chemical Bonding
Elimination Tool:

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

Formation of carbon dioxide hinders in calculating the heat of formation of:

PMC Practice 1
Chemistry
Thermochemistry
Elimination Tool:

RMgX is an organometallic compound, generally known as:

NTS 2012
Chemistry
Alkyl Halides and Amines
Elimination Tool:

Why is it necessary to distill aldehyde formed from oxidation of primary alcohol through acidified potassium dichromate (VI) solution or acidified sodium dichromate (VI) solution?

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

A fixed mass of an ideal gas is contained in a cylinder at constant temperature. Now, the pressure of the gas is decreased.

What happened to the molecules of gas?

PMC Practice 1
Physics
States of Matter – Gases, Liquids and Solids
Elimination Tool:

In combustion analysis method CO2 is absorbed by?

Which of the following do not occur in Free State?

What type of chemical reaction is this?
CH3CHO + NH3 -> CH3CH(OH)NH2

NUMS Mock 3
Chemistry
Aldehydes and Ketones

“In an atom no two electrons can have the some set of four Quantum numbers” is stated by:

NTS 2013
Chemistry
Atomic Structure
Elimination Tool:

Liquid crystals are used for:

Variable valency is shown by which of the following elements?

1.8 x 10 -5 is the dissociation constant of:

NTS 2016 SMBBMC
Chemistry
Chemical Equilibrium
Elimination Tool:

Which of the following is the highest electronegative element?

A solution has pH of 10. What is the value of [OH-]?

Which of the following has highest boiling point?

Which type of movement is shown by the atoms of the solid?

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

The expression PV = nRT represents the:

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

Which is the paramagnetic oxide of chlorine?

NUMS 2019 Reconduct
Chemistry
s and p Block Elements
Elimination Tool:

Genetic mutations occur in:

NUMS 2016
Chemistry
Chemistry of Life
Elimination Tool:

Buffer capacity depends upon

Which of the following has maximum Hydration power?

NUMS Mock 3
Chemistry
Chemical Bonding

Gases can be converted into liquid by:

CH ≡ CH + 2AgNO3 -> AgC ≡ CAg + 2HNO3 represents _____ property of acetylene.

NTS 2012
Chemistry
Hydrocarbons
Elimination Tool:

________ are prepared by passing hydrogen gas over hot alkali metals or alkaline earth metals?

NTS 2015 SMBBMC
Chemistry
s and p Block Elements
Elimination Tool:

Half-life of an element is 5 days. If we have 50,000 of its atoms, then how many atoms would be left after 10 days?

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

PMC Practice 4
Chemistry
Experimental Techniques in Chemistry
Elimination Tool:

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

NUMS 2017
Chemistry
Carboxylic Acids and its Derivatives
Elimination Tool:

Which of the following statements is true?

NUMS 2014
Chemistry
s and p Block Elements
Elimination Tool:

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

NUMS Mock 1
Chemistry
Aldehydes and Ketones

Chemical formula of Malonic acid:

What is the correct name for this structure?

NUMS Mock 1
Chemistry
Fundamental Principles of Organic Chemistry

At Equilibrium, which of the following reactions is not affected by pressure?

NUMS Mock 3
Chemistry
Chemical Equilibrium

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:

Identify from the following the example in which the complex is an anion:

NTS 2016 SMBBMC
Chemistry
d and f Block Elements
Elimination Tool:

Given the reaction:

C3H6 + 5O2 → 3CO2 +4H2O

At STP, how many liters of O2 are needed to completely burn 5.0 liters of C3H6?

NTS 2010
Chemistry
Stoichiometry
Elimination Tool:

Vapor pressure depends on

Most abundant salt of sodium in nature is:

NTS 2017
Chemistry
s and p Block Elements
Elimination Tool:

Ammonium nitrate contain nitrogen

Which element among the following forms a protective oxide coating on exposure to air?

Through what phenomenons does heat flow?

PMC Sample 2
Chemistry
Thermochemistry
Elimination Tool:

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

PMC 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Burning of which one of the following waste is considered as useful industrial fuel or to produce electricity

UHS 2015
Chemistry
Industrial Chemistry
Elimination Tool:

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

NUMS Mock 3
Chemistry
Alcohol, Phenols, and Ethers

The type of isomerism in which the position of functional group changes is called?

By increasing which of the following factor polarizability increases?

PMC Practice 1
Chemistry
Periodicity in Elements
Elimination Tool:

Identify the pair of rnicronutrients:

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 one of the following elements has six valence electrons?

Gas is enclosed in a container of 20 cm3 with the moving piston. According to kinetic theory of gases, what will be the effect on freely moving molecules of the gas if temperature is increased from 20 C to 100 C?

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

Strongest acid among the following is:

NUMS Mock 3
Chemistry
Carboxylic Acids and its Derivatives

Q.125 Standard electrode Potential is denoted by

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

The alkenes can be formed by alcohols in the presence of

PMC Sample 3
Chemistry
Alcohols, Phenols and Ethers
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:

Which one among the following is the strongest reducing agent:

Fe2++ 2e -> Fe (-0.44V)

Sn2++ 2e -> Sn (-0.14 V)

Ni2++ 2e -> Ni (0.25 V)

Fe3++ e -> Fe2+(-0.77 V)

NUMS 2018
Chemistry
Electrochemistry
Elimination Tool:

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

In the following reaction:

3Br2 +6CO32- + 3H2O → 5Br-1 + BrO3-1 + 6HCO3-1

NTS 2014
Chemistry
Electrochemistry
Elimination Tool:

Cyanohydrins can be synthesized from ketones through:

NUMS 2018
Chemistry
Aldehydes and Ketones
Elimination Tool:

Filtration process could be very time consuming if it is not aided by a gentle suction which is developed:

Sodium reacts with water more vigorously than lithium because it:

NTS 2010
Chemistry
s and p Block Elements
Elimination Tool:

The compound ‘leaf alcohol’ is partly responsible for the smell of new – mown grass

CH3CH2CH=CHCH2CH2OH

Leaf alcohol

Which two compounds will be formed when ‘leaf alcohol’ is oxidized using hot, concentrated manganate (VII) ions?

NUMS 2018
Chemistry
Alcohols, Phenols and Ethers
Elimination Tool:

The correct order of decreasing solubility of AgCI In A) Water B) 0.1 M NaCi C) 0.1 BaCl2 D) 0.1M NI-43
is?

In Alkenes the Carbon atoms are connected to each other by a

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

NUMS Mock 2
Chemistry
Carboxylic Acids and its Derivatives

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:

The compression factor (compressibility factor) for one mole of a Van der Waals gas at 0 and 100 atmosphere pressure is found to be 0.5. Assuming that the volume of gas molecule is negligible, calculate the Van der Waals constant ‘a’.

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

Which of the following gas, when ignited, burns with a blue flame and is not very soluble in water?

NUMS Mock 4
Chemistry
s and p Block Elements
Environmental Chemistry

Blue litmus turns red in a solution of PH

NUMS 2014
Chemistry
Acids, Bases and Salts
Elimination Tool:

Starch is a polymer of: N

How many chain isomers are possible for the alkane C6H14?

NTS 2016 SMBBMC
Chemistry
Hydrocarbons
Elimination Tool:

When CH2 = CH2 reacts with a halogen acid, the product formed is:

The number of moles of solute dissolved per dm) of the solution is called

Aluminium is in Nature

Which one is not an organic compound?

NUMS 2014
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool:

Isomerism due to shifting of proton from one atom to another in a same molecule is known as:

NUMS 2020
Chemistry
Fundamental Principles of Organic Chemistry
Elimination Tool: