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Which of the following has greatest electronegativity?
Silicon is found in nature in form of:
NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:
H2S is an example of ______ hydride.
NTS 2012
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following is paramagnetic
The compound in which carbon uses only its sp3 – hybrid orbitals for bond formation is?
NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:
The order of force of repulsion between lone pairs and Bond pairs is?
NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:
If the difference between electronegativity values between two atoms is less than 1.7 , the bond is necessarily:
NTS 2016 DUHS & JSMU
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following is the highest electronegative element?
How many bonds are there in CO?
Paramagnetism is due to:
Which of the following has the highest value of electronegativity?
PMC 2020
Chemistry
s and p Block Elements
Chemical Bonding
Elimination Tool:
The molecule with zero dipole moment is:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
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:
sp3 hybridization in CH4 gives it ______ geometry.
NTS 2012
Chemistry
Chemical Bonding
Elimination Tool:
Triatomic molecules have following movements:
NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following molecules has no net dipole moment?
NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following hybrid orbitals has maximum “s” character?
PMC 2020
Chemistry
Chemical Bonding
Elimination Tool:
Structure of ammonia is:
An ionic compound is most likely to be formed when:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
Co-ordinate covalent bond Is not formed in which of the following
H2O has a higher boiling point than HF because:
NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:
GN lewis described which one of the following bonds?
NTS 2015 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:
The bond angle of NF3 is:
Paramagnetism is due to:
Electrical conductivity depends upon _______.
NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:
Which pair has species with different shapes?
NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:
Surface tension in a liquid is caused by?
NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:
The decreasing order of second ionization energy of K, Ca, Ba is:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following has maximum Ionization energy?
NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following molecules have zero Dipole moments?
NTS 2011
Chemistry
Chemical Bonding
Elimination Tool:
Second Ionization energy of M atom
The shape of SnCl2 is:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
The bonds present in N2O5 are:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following has maximum Hydration power?
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
The number of sigma and pi bonds in 1-butene-3-yne?
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
The raindrop acquires a spherical shape and ink spread over blotting paper due to:
NTS 2010
Chemistry
Chemical Bonding
Elimination Tool:
Ionization energy depends upon:
The dipole moments of the given molecules (BF3, NF3, NH3) are such that:
NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:
In HF the covalent bond is due to:
NTS 2016 SMBBMC
Chemistry
Chemical Bonding
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 ions will show maximum hydration?
NTS 2016 SMBBMC
Chemistry
Chemical Bonding
Elimination Tool:
Ionization potential
Down the group atomic radii increases due to?
The hybridization of atomic orbitals of N2+, NO3-, and NH4+are, respectively:
NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:
Which theory deals with hybridization of orbitals?
In water molecules, oxygen atom is hybridized as
The number of bond(s) between carbon and nitrogen atoms in a Nitrile is:
NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:
Bond angle of Ethane is:
The first ionization energy is maximum for:
PMC 2020
Chemistry
Chemical Bonding
Elimination Tool:
Hybridization in BeCl2 Is a
Lithium and beryllium are unique in such a way that they have higher charge densities which produce strong polarizing effects due to:
NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:
Which noble gas has highest ionization energy?
How many orbitals intermix in sp hybridization?
Which compound shows maximum hydrogen bonding with water?
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
Methane has geometry
In period, moving from left to right
Dipole moment of H2 is:
The boiling point of water is higher than other hydrides because water molecules can form:
NTS 2018
Chemistry
Chemical Bonding
Elimination Tool:
The common features, among the species CN, CO and NO are:
NUMS 2016
Chemistry
Chemical Bonding
Elimination Tool:
Geometry of SF6 is:
Which of the following has the largest dipole moment?
Which of the following contains the coordinate covalent bond?
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
The Lattice energy is also called as:
PMC 2020
Chemistry
Chemical Bonding
Elimination Tool:
which type of hybridization doesn’t exist?
Which one of the following has the lowest % ionic character?
NTS 2016 DUHS & JSMU
Chemistry
Chemical Bonding
Elimination Tool:
Which of the following has a lone pair of electrons on the central atom?
The geometry of H2S and its dipole moment are:
NTS 2016 DUHS & JSMU
Chemistry
Chemical Bonding
Elimination Tool:
Sigma bond is formed by:
NTS 2010
Chemistry
Chemical Bonding
Elimination Tool:
Electronegativity is defined as the power of an atom in a molecule to
Acetone and Chloroform are soluble into each other due to:
NUMS 2015
Chemistry
Chemical Bonding
States of Matter
States of Matter – Gases, Liquids and Solids
Elimination Tool:
Every sp3 orbital is oriented in space In such a way that angle between them is:
Bond energy between nitrogen atoms in N2 molecule is:
NTS 2015 DUHS and JSMU
Chemistry
Chemical Bonding
Elimination Tool:
An ionic compound is most likely to be formed when:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool:
Linear combination of atomic orbitals (LCAO) results in the formation of:
NTS 2010
Chemistry
Chemical Bonding
Elimination Tool:
Which one of these is paramagnetic?
Bond energy:
I. is the energy required to break a bond between two atoms in a diatomic molecule
II. Is taken as the energy released in forming a bond form free atoms
III. Is the measure of the strength of bond
NTS 2011
Chemistry
Chemical Bonding
Elimination Tool:
The substance which conducts electricity by the movement of ions:
NUMS 2014
Chemistry
Chemical Bonding
Elimination Tool:
Both ionic and covalent bonds are present in:
NUMS 2015
Chemistry
Chemical Bonding
Elimination Tool: