19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The decreasing order of the repulsive interaction of electron pairs is (Here, lp=lone pair, bp=bond pair).
Consider the following statements, 1. The shape of a molecule depends upon the number of valence shell electron pairs (bonded or non-bonded) around the central atom. 2. Pairs of electrons in the valence shell repel on…
Among the following, the molecule with highest dipole moment is :
Which of the following molecules does not have a dipole moment?
The highest dipole moment is of:
Polarity in a molecule and hence the dipole moment depends primarily on electronegatively of the constituent atoms and shape of a molecule. Which of the following has the highest dipole moment?
NH3 and NF3, both the molecules have pyramidal shape with a lone pair of electrons on nitrogen atom. Why does the dipole moment of NH3 is greater than that of NF3? Choose the correct option.
The decreasing order of dipole moments of the molecules HF, H2O, BeF2, NF3 is
Which of the following molecule has dipole moment zero?
The net dipole moment of H2O molecule is
The dipole moment of HF molecule may be represented as (a) (b) (c) (d) Ans. (b) Sol. This arrow symbolizes the direction of the shift of electron density in the molecule.
Dipole moment is usually expressed in Debye units
Dipole moment is usually designated by a Greek letter ‘μ ‘ µ = Q × r Here Q and r represents
The product of the magnitude of the charge and the distance between the centres of positive and negative charge is called.
Which of the following molecules represents resonance
Which of the following is correct representation of canonical forms resonance?
Resonance structures can be written for:
Deviation of O─O bond length in ozone molecule from the normal bond length seems as
Resonating structure are represented through which type of arrows?
The structure which represents the molecule’s structure more accurately is called
Whenever a single Lewis structure cannot describe a molecule accurately, a number of structures with almost similar energy, position of nuclei, bonding and non-bonding pairs of electrons are taken as the canonical str…
Which of the following compounds contain(s) no covalent bond(s)? KCl, PH3, O2, B2H6, H2SO4
The attractive force which holds various constituents (atoms, ions etc.) together in different chemical species is called a
Lattice energy of an ionic compound depends upon
An ionic compound A+B– is most likely to be formed when: