Chemical Bondin...

Isostructural species are those which have the same shape and hybridisation. Among the given species identify the isostructural pairs.

Polarity in a molecule and hence the dipole moment depends primarily on electronegativity of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?

The types of hybrid orbitals of nitrogen in \(NO_2^+\), \(NO^-_3\) and \(NH^+_4\) respectively are expected to be

Hydrogen bonds are formed in many compounds e.g., \(H_2O\), \(HF\), \(NH_3 \). The boiling point of such compounds depends to a large extent on the strength of hydrogen bond and the number of hydrogen bonds. The correct decreasing order of the boiling points of above compounds is :

In \(PO^{3-}_4\) ion the formal charge on the oxygen atom of P-O bond is

Which of the following have identical bond order?

(i) \(CN^-\)

(ii) \(NO^+\)

(iii) \(O^-_2\)

(iv) \(O^{2-}_2\)

Match the species in Column I with the type of hybrid orbitals in Column II

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

Assertion (A): Sodium chloride formed by the action of chlorine gas on sodium metal is a stable compound.

Reason (R): This is because sodium and chloride ions acquire octet in sodium chloride formation.

Which of the following attain the linear structure:

(i) \(BeCl_2\)

(ii) \(NCO^ +\)

(iii) \(NO_2\)

(iv) \(CS_2\)

Which of the following species has tetrahedral geometry?

CO is isoelectronic with

(i) \(NO ^+\)

(ii) \(N_2\)

(iii) \(SnCl_2\)

(iv) \(NO^-_2\)

Match the species in Column I with the geometry/shape in Column II.

Which of the following species have the same shape?

(i) \(CO_2\)

(ii) \(CCl_4\)

(iii) \(O_3\)

(iv) \(NO^-_2\)

Which molecule/ion out of the following does not contain unpaired electrons?

In which of the following substances will hydrogen bond be strongest?

Match the species in Column I with the bond order in Column II.

What is Bond formation? 

An _____ bond is a bond in which electrons are transferred.

Which one of these is weakest ?

The number of sigma and $$\pi$$ bonds in 1-butene-3yne are-

Compound having maximum number of bonded pairs of electrons in its molecule is:

Molecule which contains only bonded pairs of electrons on the central atom is:

Number of bonded electrons in ethane molecule are:

The number of electron bond pairs involved in the formation of hydrogen cyanide molecule are:

In which of the following molecule, the central atom has three lone pairs of electrons?

Molecule which contains $$4$$ bonded pairs and $$2$$ lone pairs of electrons on the central atom is: