Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
If the main axis of a diatomic molecule is z, then the molecular orbital $p_x$ and $p_y$ overlap to form which of the following orbital:
Which of the following set of molecules will have zero dipole moment?
$BF_3$ is a planar and an electron-deficient compound. Hybridisation and the number of electrons around the central atom, respectively, are:
In which of the following molecules, all atoms are coplanar?
Match the molecules in List-I with the corresponding shape in List-II: List-I (Molecules): (a) $NH_3$ (b) $ClF_3$ (c) $PCl_5$ (d) $BrF_5$ List-II (Shape): (i) Square pyramidal (ii) Trigonal bipyramidal (iii) Trigonal pyramidal (iv) T-shape Choose the correct answer from the options given below:
Which of the following pairs share both isoelectronicity and isostructural characteristics? $\text{NO}_3^-$, $\text{CO}_3^{2-}$, $\text{ClO}_3^-$, $\text{SO}_3$
Which of the following pairs of compounds is isoelectronic and isostructural?
The incorrect statement among the following regarding the molecules of $\text{CH}_4$, $\text{NH}_3$, and $\text{H}_2\text{O}$ is:
Which among the following species has a triangular planar shape?
$\text{XeF}_2$ is isostructural with:
The rate constant for a first order reaction is 4.606 × 10⁻³ s⁻¹. The time required to reduce 2.0 g of the reactant to 0.2 g is:
The correct increasing order of bond angles in the following species is:
The angular shape of ozone molecule ($O_3$) consists of:
What is the dominant intermolecular force that must be overcome in converting liquid $CH_3OH$ to a gas?
In which of the following molecules are all the bonds not equal?
The electronegativity difference between $\text{N}$ and $\text{F}$ is greater than that between $\text{N}$ and $\text{H}$, yet the dipole moment of $\text{NH}_3$ (1.5 D) is larger than that of $\text{NF}_3$ (0.2 D). This is because:
Which of the following pairs of species have the same bond order?
Consider the following species: CN$$^+$$, CN$$^-$$, NO and CN. The highest bond order associated with:
The correct order of energies of molecular orbitals of N$$_2$$ molecule is:
Which one of the following molecules is paramagnetic?