19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Cl – is the conjugate base of
The correct order of acid strength is
Conjugate base of NH3 is (a) NH (b) NH (c) NH
The conjugate acid of HPO4 2– is
Review the equilibrium and choose the correct statement HClO4 + H2O H3O + + ClO4 –
Of the given anions, the strongest Bronsted base is
The conjugate base of a weak acid is
According to Lowry and Bronsted system, the chloride ion (Cl–) in aqueous solution is a
According to Lewis concept, acid is
The conjugate base of HPO is (a) PO (b) H PO
In the reaction I I I -> the Lewis’s base is
BF3 is acid according to
Which of the following is not Lewis’s acid ?
The strongest conjugate base is (a) NO
Which of the following molecules acts as Lewis acid?
Which one of the following molecular hydrides acts as a Lewis’s acid?
Which of the following is least likely to behave as Lewis’s base?
Arrange NH ,H O,H O ,HF and OH in increasing order of acidic nature. (a) H O NH HF OH H O (b) NH HF H O H O OH (c) HO H O NH HF H O (d) H O HF H O NH OH
Pure water is kept in a vessel and it remains exposed to atmospheric CO2 which is absorbed, then its pH will be
Which equilibrium can be described as an acid-base reaction using the Lewis’s acid-base definition, but not using Bronsted-Lowry definition ?
Which of the following is the weakest acid?
A monoprotic acid in 1.00 M solution is 0.01% ionised. The dissociation constant of this acid is
The following equilibrium exists in aqueous solution, CH3COOH CH3COO – + H + if dil. HCl is added, without change in temperature, the
The degree of dissociation of 0.1 M HCN solution is 0.01%. Its ionisation constant would be
Degree of dissociation of 0.1 N CH3COOH is (Dissociation constant = 1 × 10 –5)