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A diatomic molecule, among the following species, that only has $\pi$ bonds according to the Molecular Orbital Theory (MOT) is:
The number of unpaired electrons in a paramagnetic diatomic molecule of an element with atomic number 16 is:
The correct state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon $$ \overset{1}{\text{HC}} \equiv \overset{2}{\text{C}} - \overset{3}{\text{CH}}_2 - \overset{4}{\text{CH}} = \overset{5}{\text{CH}} - \overset{6}{\text{CH}}_3 $$ is in the sequence:
Consider the following List-I and List-II: **List-I (Molecule)** (a) $PCl_{5}$ (b) $SF_{6}$ (c) $BeCl_{2}$ (d) $NH_{3}$ **List-II (Shape or geometry)** (i) Trigonal planar (ii) Octahedral (iii) Linear (iv) Trigonal pyramidal Identify the **wrong** match from the given pairs:
Predict the correct order among the following.
The pair of electrons in the given carbanion, $\text{CH}_3\text{C}\equiv\text{C}^-$, is present in which of the following orbitals?
An isostructural compound with $XeF_2$ among the following is:
Which one of the following bonds produces a solid that reflects light in the visible region and whose electrical conductivity decreases with temperature and has a high melting point?
In which of the following pairs of molecules/ions, the central atoms have $sp^2$ hybridization?
Which of the following diatomic molecular species has only $\pi$ bonds according to Molecular Orbital Theory?
Which of the two ions from the list given below have the geometry that is explained by the same hybridisation of orbitals, $NO_2^-$, $NO_3^-$, $NH_2^-$, $NH_4^+$, $SCN^-$?
Which of the following has the minimum bond length?
Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them.
The mixture that forms maximum boiling azeotrope is:
A molecule that cannot exist is:
The manganate and permanganate ions are tetrahedral, due to :
Which of the following is a paramagnetic compound?
Match the following oxides with their nature: **Column I** (a) CO (b) BaO (c) Al₂O₃ (d) Cl₂O₇ **Column II** (i) Basic (ii) Neutral (iii) Acidic (iv) Amphoteric
Which of the following species has a bond angle of 120$$^\circ$$?
The correct bond order in the following species is: