Select the correct order of Increasing bond length of C =C,C -C.C- O and C H
[A] C-O < C-H < C-C < C-C
[B] C-C < C-C < C-O < C-H
[C] C-H < C-C,C-O < C-C
[D] C-H < C-O < C-C < C-C
Bond length is defined as the equilibrium distance between the nuclei of two bonded atoms in a molecule and it is measured by
[A] spectroscopic technique.
[B] X ray diffraction technique.
[C] electron diffraction technique.
[D] all of these.
Which of the following covalent bonds has maximum bond length?
[A] O – H
[B] C – H
[D] C – O
Which of the following will be the strongest bond?
[A] O H
[B] N – H
[C] O – Cl
[D] F – O
Which of the following statements is Incorrect?
[A] The covalent radius is measured approximately as the radius of an atom’s core which is In contact with the core of an adjacent atom in a bonded situation.
[B] The covalent radius is twice the distance between two similar atoms joined by a covalent bond in the same molecule.
[C] The vander Waals’ radius represents the overall size of the atom which includes its valence .shell in a non bonded situation.
[D] Bond length is the equilibrium distance between the nuclei of two bonded atoms in a molecule.
In which of the following options, first molecule average bond length is greater than the second one?
[A] C-N, C-C
[C] C – C. C- N
[D] O – H, C – H
Some statements regarding bond angle are given below. Identify the correct statement(s).
(I) Bond angle is the angle between the orbitals containing bonding electron pairs around the central atom In a molecule/complex ion.
(II) Bond angle is expressed in degrees winch can lie experimentally determined by spectroscopic methods.
(III) Bond angle helps in determining the shape of the molecule/complex ion.
(IV) Bond angle gives some Idea regarding the distribution of orbitals around the central atom In a molecule/complex ion.
[A] III only
[B] I, II and IV
[C] I, II, III and IV
[D] I and III
What is the bond angle of H2O molecule?
Select the correct statement for bond enthalpy.
[A] It is the amount of energy required to break one mole of bonds of a particular type between two atoms in a gaseous state.
[B] It is the amount of energy required to break one mole of bonds of a particular type between two atoms in a liquid state.
[C] It is the amount of energy required to break one mole of bonds of a particular type between two atoms in a solid state.
[D] None of these
The normal OO and O-O bond length are 148 pm and 121 pm respectively. What are the experimental oxygen bond lengths In the O3 molecule?
[A] 128 pm
[C] 121 pm
How many canonical forms are possible for the carbonate (CO3<2-ion in terms of resonance?
In terms of resonance, how many canonical forma are possible for CO2 molecule?
Some statements regarding resonance are given below. Identity the correct Statement(s).
(I) Resonance stabilises the molecule.
(II) The energy of the resonance hybrid is less than the energy of any single canonical structure.
(lll)Resonance averages the bond characteristics as a whole.
[A] I only
[B] II only
[C] II and lll
[D] I. II and lll
Two statements for polarity of bonds are given below:
(I) The existence of a 100% Ionic or covalent bond represents an ideal situation.
(II) In reality no bond or a compound is either completely covalent or ionic.
The given statements I and II are true or false?