List of top Chemistry Questions on Acids and Bases asked in KEAM

Which of the following is a Lewis acid?
Which among the following acts as a Lewis acid? \[ A) \text{AlCl}_3, \quad B) \text{NH}_3, \quad C) \text{OH}^-, \quad D) \text{H}_2\text{O} \]
Which of the following has the highest \( K_b \) value?
Which is a Lewis acid?
0.1 M HCl and 0.1 M H2SO4 each of volume 2 mL are mixed and the volume is made up to 6 mL by adding 2 mL of 0.01 N NaCl solution. The pH of the resulting mixture is
In which of the following aqueous solutions of salt, is pH independent of the concentration of the salt?
When n-hexane is heated to 773K at 10-20 atmosphere pressure in the presence of \(Cr_2O_3\), benzene is formed. This reaction is called
The decreasing order of basic strength of amines in aqueous medium is:
Choose the wrong statement in the following with regard to orthoboric acid:
When zinc metal is reacted with aqueous sodium hydroxide, the products formed are
The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Hard acids prefer to combine with
The $pK_a$ of a weak acid $HA$ and $pK_b$ of a weak base $BOH$ are $4.60$ and $4.80$ respectively. The $pH$ of $0.1\, M$ solution of the salt, $BA$, formed from the acid $HA$ and base $BOH$ is
The pH of normal rain water is