The energy of second Bohr orbit of the hydrogen atom is -328KJ mol⁻1. The energy of fourth Bohr orbit would be
The heat of formation of CO₂ is -94 Kcal mol⁻1 whereas ∆H for 2CeO₂ → 2CO is -110.5 Kcal,The enthalpy of combustion carbon is
Among the molecules (a)XeO₃ (b)XeOF (c)XeOF₆,those having same no. of lone pairs on Xe are
Thus, all the three have same no. of lone pair of electrons i.e. one.
The equilibrium constant for the following reaction will be 3 A + 2 B → C
A reaction with respect to the reactant A has a rate constant of 5 s⁻1. If we start with[A]= 10 mol-L⁻1, then in what time the concentration of A becomes 1.0 mol-L⁻1?
In an electrochemical cell, if Eº is the EMF of the cell involving 'n' mole of electrons, then ∆Gº is
Aspirin is an acetylation product of
The radioisotope, tritium (3H₁) has a half-life of 12.3 years. If the initial amount of tritium is 32 mg, how many miligrams of it would remain after 49.2 years ?
The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is
Among the following compounds , the decreasing order of reactivity towards electrophilic substitution is
What will be the product in the following reaction?
Given: The value of standard electrode potential for the change,
(aq) will be
'Z' in the following sequence of reactions is
At constant temperature, the osmotic pressure of a solution is
Which of the following are the examples of aldol condensation ?
The molecules that will have dipole moment are:
Keto-enol tautomerism is observed in
When HCl(g) is passed through a saturated solution of common salt, pure NaCl is precipitated because
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