Which of the following statements is false? 

1.	H3PO2, H3PO3 and H3PO4 all are tribasic and reducing in nature.
2.	Amongst anions \(NO_{3}^{-}\), \(SO_{3}^{2-}\), \(CO_{3}^{2-}\), and \(BO_{3}^{3-}\), only \(SO_{3}^{2-}\) have  pπ-dπ bonding .
3.	Amongst anions \(SO_{3}^{2-}\), \(SO_{4}^{2-}\), \(S_{2}O_{4}^{2-}\) and \(HSO_{4}^{-}\), \(SO_{3}^{2-}\) is basic and reducing in nature.
4.	Number of lone pair(s) of electrons on Xe atoms in XeF2, XeF4 and XeF6 are 3, 2 and 1 respectively._

Which of the following statements about H₂SO₄ is false:

1. It can act as an oxidising agent with copper

2. It acts as a dehydrating agent with sugar

3. It acts as an acid in its reaction with BaO₂

4. It acts as a reducing agent in its reaction with Cu₂O

The least acidic oxide among the following is:

1. P₄O₆ 

2. P₄O₁₀ 

3. As₄O₆ 

4. As₄O₁₀ 

The correct increasing order for the acid strength of nitrogen oxides is: 

1. ${\mathrm{N}}_2\mathrm{O }< \mathrm{NO }< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{4 }}< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{3 }}< {\mathrm{N}}_2{\mathrm{O}}_5$

2. ${\mathrm{N}}_2\mathrm{O}$ $< \mathrm{NO }< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{3 }}< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{4 }}< {\mathrm{N}}_2{\mathrm{O}}_5$

3. ${\mathrm{N}}_2\mathrm{O}$ $< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{3 }}< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{4 }}< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{5 }}< \mathrm{NO}$

4. $\mathrm{NO }< {\mathrm{N}}_2\mathrm{O}$ $< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{3 }}< {\mathrm{N}}_2{\mathrm{O}}_{\mathrm{4 }}< {\mathrm{N}}_2{\mathrm{O}}_5$

Why does fluorine not produce oxyacids?

1. It is most electronegative

2. It is the most powerful oxidising agent

3. It has vacant d- orbitals

4. None of the above

The correct statement regarding H₃PO₃ is:

1. Each hydrogen atom is attached to oxygen.

2. Two hydrogen atoms are attached to oxygen atoms.

3. One atom of H is attached to oxygen.

4. None of the above.

In the nitrogen family, the H-M-H bond angle in the hybrides MH₃ gradually becomes closer to 90^o if we move from N to Sb. This shows that gradually  

The oxidation states of the S atom in $S_4{O}_6^{2-}$  from left to right, respectively, are:

1. + 6, 0, 0, and +6                         

2. +5, +1, +1, and +5

3. +5, 0, 0, and +5                           

4. +3, +1, +1, and +3

What is produced when orthophosphoric acid reacts with phosphate rock (fluorapatite)?

1. $\mathrm{Ca}{\left({\mathrm{H}}_2{\mathrm{PO}}_4\right)}_2+{\mathrm{CaF}}_2$                   

2. ${\mathrm{Ca}}_3{\left({\mathrm{PO}}_4\right)}_2+{\mathrm{CaF}}_2+{\mathrm{H}}_2\mathrm{O}$

3. $\mathrm{Ca}{\left({\mathrm{H}}_2{\mathrm{PO}}_4\right)}_2+\mathrm{HF}$                       

4. ${\mathrm{Ca}}_3{\left({\mathrm{PO}}_4\right)}_2+\mathrm{HF}+{\mathrm{H}}_2\mathrm{O}$

Which of the following statements is false?