Chemical Bonding

Which of the following bonds has minimum bond energy?

_ hybridization leads to a regular tetrahedral structure:

All₃ (Aluminium Iodide) is electrically a _

London forces are very significant in _

_ has dipole moment.

Which type of bonding is present in NH₄Cl?

Linear shape is associated with a set of hybrid orbitals?

VSEPR theory helps in explaining:

If the electronegativity difference between bonded atoms is zero, the bond between the two atoms is:

A bond is not formed:

Which one of the following molecules has zero dipole moment?

In ‘H-F’ bond electronegativity difference is ‘1.9’. What is the type of this bond?

The electronic structure of carbon monoxide is represented as:

The suitable representation of dot structure of chlorine molecule is :

London dispersion forces are the only forces present among the:

Choose the right molecule.

Study the following graphs for the boiling points of some substances: Which of the above graph shows that some members of the graph have hydrogen bonding?

The reason why CO₂ is highly stable because it’s _:

The stability in the following structure is due to the:

The structure of Xenon trioxide is shown below: With reference to the valence shell electron pair repulsion theory (VSEPR), the shape of XeO₃ is:

Which of the following substances exhibits strong hydrogen bonding?

Which one of the following don't have a tendency to form hydrogen bonding?

Molecules having one lone pair and three bond pairs have geometrical shape:

Correct arrangement of orbital according to size of hybridized orbitals:

The theories which explain the formation of sigma and pi bond are EXCEPT:

Cation and anion formed which combines to form crystal lattices:

Ethene (H²C = CH²) has hybridization of C-atom:

Which of the following equation relates to the first ionization energy of bromine?

Nitrogen has the atomic number 7. Which of the following electronic configurations is of a nitrogen atom in ground state?

Choose the right molecule:

Identify the type of hybridization of nitrogen in the molecule:

In CH₃Cl, bond length of C-Cl is 176.7pm and covalent radius of Cl atom is 99.4pm, the covalent radius of carbon atom is:

This shape is found in AX₂ when the bond angle is 180°:

Which one of the following molecules has a zero dipole moment?

Which of the following has sp³ hybridization?

Which of the following pair is iso-structural?

CO₂ and SO₂ are two compounds. Which of the following best describes these two compounds?

Which of the following molecule has sp² hybridization?

The bond energy of hydrogen in H₂ molecule is:

Which of the following molecule is covalent in nature?

Which of the following molecule is polar?

Type of hybridization of carbon in Ethene (H₂C=CH₂) is:

The dipole moment of CO₂ is zero because it is:

The shape of ammonia (NH₃) is:

Identify the compound which has bond formed by overlapping of sp and p orbital:

AB₄ type with no lone pairs geometry enables to form which shape of molecule?

Among LiCl, BeCl₂, NaCl and CsCl, compounds with the greatest and the least ionic character respectively are:

Shape of H₂S:

The bond angle in H₂S is less than H₂O. It is due to:

Among the following molecules, which one has coordinate covalent (dative) bond?

Which one of the following has zero dipole moment?

Which of the following molecule has zero dipole moment?

Which one of the following molecules has sp³ hybridization?

Which of the following molecule has largest number of shared pair electrons?

Count the number of σ bonds and π bonds in the molecule:

What is the shape of ammonia NH₃ molecule?

Which of the following sets constitutes all the molecules and ions of non-planar geometry?

The structure of Xenon trioxide is shown below:

With reference to the Valence shell electron pair repulsion theory (VSEPR), the shape of XeO₃ is:

Which option shows all the molecules with bond angle 109.5°?

Maximum dipole moment is possessed by:

Which of the following molecules has non-zero dipole moment?

In which of following species central atom is not sp³ hybridized:

Cl₂ molecule is formed by the overlapping:

The concept of hybridization was given to remove which of following drawbacks of VBT:

Which of the following has perfect triangular structure?

The correct order of bond angles is represented in:

Which molecular geometry is not possible for AB₄ type molecules?

The shape of NH₃ is:

Which pair has trigonal planar geometry?

The percentage of co-ordinate covalent bond present in BF₃ and NH₄⁺ respectively:

During bond formation, HF molecule involves overlaps:

The total number of sigma bonds in C₂H₂ are:

Bond angle in NH₃ is smaller than bond angle in:

Which of the following is non-polar molecule?

Which of the following compounds follow the octet rule?

Which of the following element has smaller size?

The ionization energy increases along a period in periodic table due to increase in:

Which of the statements is incorrect

Which of the following elements can follow the extended octet rule?

Dative bond is present in the molecule

Which is not possible

The compound which have three types of bonds is

In general, ionization energy increases along the period. The group which shows maximum ionization energy

The correct order of ionization energy is

Select the correct one:

Electronegativity of Al is approximately equal to that of

Total number of electron pairs present in the valence shell of central atom in water are

The carbon atom carrying positive charge and attached to three other atoms or group is called:

The unhybridized "p" orbital in sp² hybridization is:

Which one of the following molecules has zero dipole moment.

Which one of the following molecules has a pyramidal structure?

Which one of the following molecules has zero dipole movement?

Diamagnetic behavior of Flourine molecule is due to presence of

Which of the following has smallest atomic radius:

Which of the following is NOT a feature of Valence Shell Electron Pair Repulsion theory?

Which of the following has a coordinate bond?

Which shape/geometry is found in AX₂ when the bond angle is 180°?

The structure of primary amines is:

The paramagnetic behavior of molecules such as oxygen molecules cannot be explained by:

The shape of an ammonia molecule is:

Conversion of sodium into sodium ions is:

Bond energy is expressed in:

Which of the following is not a primary bond?

During the formation of chemical bond:

The strongest hydrogen bond is present in

The binding energy of transition metals increases upto group _.

The type of bonding in Zinc is:

Which of the following has the greatest difference of electronegativity?

Which one of the following elements has the largest second ionization energy?

The first ionization energy of Al is less than Mg. This is due to:

In which of the following molecule hydrogen bond is not present?

The shape of ammonia (NH₃) is _.

A radius greater than its parent atom is called:

Which of the following element has the highest ionization energy.

Identify the compound given below, which has the bonds formed by the overlapping of sp and p orbitals

Which of the following complex show a tetrahedral geometry?

AB₄ type with no lone pair; this geometry enables the formation of which shape of molecule?

The dipolar moment of CO₂ is zero because it is:

Sp² hybrid carbon atom is present in

Which of the following carbon atoms is sp² hybridized?

Which ionic radius is the smallest?

Which of the following pairs is isostructural?

Greater the resonance energy of a molecule?

H₂O has geometry:

What is the reason of small atomic radii of sodium ions as compared to sodium atom?

Which of the following has the smallest size?

Which one of the following is covalent in nature?

The bond length between double-bonded carbon atom is:

Molecule are having the highest bond energy (experimentally) is:

The molecular shape of a molecule with three bonded atoms and one lone pair electron on the central atom will be:

Which of the following has the highest atomic radius in its period?

The bond energy of hydrogen in the H₂ molecule is:

The hydrate percentage is maximum for:

50% inversion of configuration and 50% retention of configuration observed is characteristics of mechanism:

Which of the following has small size?

Which of the following molecule has sp² hybridization?

Which of the following will have positive electron affinity?

The nature of attraction that holds molecular crystals is:

CO₂ and SO₂ are two compounds. Which of the following best describes these two compounds?

The bond formed b/w NH₃and BF₃is co-ordinate covalent bond because NH₃ is_ due to presence of one lone pair:

_ is also known as a dative bond.

The distance between the nuclei of two atoms forming a covalent bond is called the bond length. Which of the following factors affect the bond lenght?

Highest number of covalent bonds are present in:

The number of unpaired electrons in NH₃:

Ionic bond is produced after complete transfer of:

The ionization energy:

The charge on a cation M is +2 & on anion A is -3, the compound formed has formula:

Covalent bonds are:

A covalent bond may be:

Mostly ionic compounds are produced between elements of group:

Which one of the following molecules does not follow the duplet or octet rule?

Which covalent bond has the highest ionic character?

If two atoms are bonded in such a way that one member of the covalently bonded molecule donates both electrons that are shared, then what is this type of bond called?

Which of the following molecules has six bonding electrons?

Majority of the compounds in nature have:

Ionic compounds show all of the following properties EXCEPT:

If the sharing of an electron pair is unequal and the atoms have an electronegativity difference of 1.4 to 1.6, then the type of bond formed is called:

Co-ordinate covalent bond is present in :

All of the following species have dative bond except:

Maximum ionic character is exhibited by :

The bond between the two atoms is non-polar, if the E.N difference is _.

Total number of valence electrons in CH₄ is:

The unit of electron affinity is:

Potassium has electronic configuration (2,8,8,1) and become ion by attaining configuration

Which of the following compound has a directional bond?

Metals have_ionization energy value:

Energy is _ when oppositely charged ions are brought close to each other.

The sum of cationic and anionic radius in a crystal lattice is equal to:

No electrovalent bond is 100% ionic in nature. This is because:

All of the following statements are matched correctly for ionic and covalent bonds EXCEPT:

_ also known as a dative bond.

The distance between the nuclei of two atoms forming a covalent bond is called the bond length. Which one of the following factor affects the bond lenght?

All are the properties of non-polar covalent bond except:

Which of the following molecules has the maximum number of dative bonds?

Limitation to valence bond theory (VBT) is that:

Which of the following has perfect triangular structure :

Which molecular geometry is not possible for AB₄ type molecules

Which of the following species has lone pair of electrons on central atom?

The following molecules has linear structure except?

The percentage of co-ordinate covalent bond present in BF^4- and NH₄⁺ respectively :

Formation of ionic bond is favoured by

Greater shielding effect corresponds to_ionization energy value.

Which of the following has highest ionization energy value?

Ionization energy depends upon

In a period, the atomic radii:

Decreasing order of size of various hybrid orbitals is:

Among the following, the strongest hydrogen bond is:

Most favourable conditions for the formation of ionic bonds are?

Hybridization involves:

The angle between unhybridized p-orbital and three sp² hybrid orbitals of each carbon atom in ethene is

a- helices are secondary structures characterized by:

FIX THIS:Alpha helices are secondary structures characterized by:

FIX THIS:The process requiring absorption of energy is:

When N²⁺ is form N₂ bond-order ......... and when O²⁺ is formed from O₂ bond-order:

The long chains of amino acids are called:

Pi (π) bond between two atoms is

The covalent compounds exhibit:

The solid which is hardest of all types is _?

Which of the following substances has the largest intermolecular forces of attraction?

In the structure of diamond, each carbon atom is _ hybridized?

Which of the following has the highest electrical conductivity?

For stable molecular geometry, each carbon atom undergoes:

s-sp³ overlap occurs in _ molecule.

By raising the temperature 1°C, conductance increases by 2 to 2.5%. Which is due to reduced _ of ions?

Considering the molecular orbital theory (MOT), chooses the correct relative energies order.

The bond angle in H₂S is less than H₂O. it is due to

Which equation relates to the first ionization energy of bromine?

Which of the following elements has lower first ionization energy?

Fe⁺² will form the most ionic bonds with:

What will be the geometrical shape of a molecule that contains two lone pairs and two bond pairs of electron in valence shell of central atom?

Evaporation depends upon:

Hydrogen bonding in H - F is stronger than H₂O and NH₃. The highest boiling point among the three is of:

Specie with dipole moment equal to zero is:

According to M.O theory the number of molecular orbitals in O₂ are:

In the compound CO₂ and H₂O the hybridization in oxygen is respectively:

Unhybrid "p" orbitals on linear overlap:

What is the exact value of angle in BF₃:

Pi-bond is formed by sideways overlap of _?

Calculate the number of bonds and bonds in the molecule:

In crystal lattice of ice, each O-atom of water molecule is attached to

According to valence shell electron pair repulsion theory, the repulsive forces between the electron pair of central atom of molecule are in the order:

Number of electrons in the outermost shell of chloride ion (Cl^-) is:

When the two partially filled atomic orbitals overlap in such a way that the probability of finding electron is maximum around the line joining the two nuclei, the result is the formation of

In comparison with oxygen gas, a strong triple bond is present between two nitrogen atoms in a molecule and therefore nitrogen gas is:

Lattice energy of an ionic crystal is the enthalpy of:

The paramagnetic character of a substance is due to: