The most acidic compound among the following is:

1.		2.
3.		4.

The correct increasing order of basic strength of the given molecules is:

(I)	(II)	(III)

1. III < I < II

2. III < II < I

3. II < I < III

4. II < III < I

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field?
1. K
2. Rb
3. Li
4. Na

HgCl₂ and I₂ both, when dissolved in water containing ${\mathrm{I}}^{-}$ ions the pair of species formed is:

1. ${\mathrm{HgI}}_2,$ ${\mathrm{I}}^{-}$

2. ${\mathrm{HgI}}_4^{2-},$ ${\mathrm{I}}_3^{-}$

3. ${\mathrm{Hg}}_2{\mathrm{I}}_2,$ ${\mathrm{I}}^{-}$

4. ${\mathrm{HgI}}_2,$ ${\mathrm{I}}_3^{-}$

Mixture of chloroxylenol and terpineol acts as:

1. Antiseptic

2. Antipyretic

3. Antibiotic

4. Analgesic

An example of a sigma bonded organometallic compound is:

A first-order reaction has a specific reaction rate of
10^–2 sec^–1. How much time will it take for 20 g of the reactant to reduce to 5 g?

The concentration of Ag⁺ ions in a saturated solution of Ag₂C₂O₄ is 2.2 × 10^–4 mol L^–1.
The solubility product of Ag₂C₂O₄ is: