If r is the radius of first orbit, the radius of nth orbit of the H atom will be
To calculate the amount of work done in Joules during a reversible isothermal expansion of an ideal gas, the volume must be expressed in
The electronic configuration of group III elements is
The H-O-H bond angle in H₂O molecule is
Among the following metal carbonyls, the C ― O bond order is lowest in
An anionic carbonyl complex can delocalise more electron density to antibonding π - orbital (dπ - pπ back -bonding) of CO and thus lower the bond order.
The IUPAC name of [Ni(NH3)4] [NiCl4] is
As per the rules, the positive ions (cation) whether simple or complex, is named first followed by the negative ion (anion).
Which of the following will have fastest rate of reaction with Br₂/FeBr₃?
In context with the industrial preparation of hydrogen from water gas (CO + H₂) , which of the following is the correct statement ?
The bond dissociation energy of B ― F in BF3 is 646 kJ mol-1 whereas that of C ― F in CF4 is 515 kJ mol-1. The correct reason for higher B ― F bond dissociation energy as compared to that of C ― F is
Which aromatic acid(s) among the following is/are stronger acid than simple benzoic acid ?
The molecules that will have dipole moment are:
Statements that are true about Wilkinson's catalyst are:
When HCl(g) is passed through a saturated solution of common salt, pure NaCl is precipitated because
Phosphorous pentachloride reacts with