How many lone pairs of electrons are present on the central chlorine atom in the structure of ClF₃?

1. One (1)

2. Two (2)

3. Four (4)

4. Three (3)

In which pair of ions both the species contain S-S bond?

Choose the pairs of isoelectronic compounds which are isostructural:

1. TeF₂, XeF₂

2. IBr₂^-, XeF₂

3. IF₃, XeF₂

4. BeCl₂, XeF₂

Match the interhalogen compounds of Column I with the geometry in Column II and assign the correct code.

Column I             Column II
A. XX'                 (i) T-shape
B. XX'₃               (ii) Pentagonal bipyramidal
C. XX'₅               (iii) Linear
D. XX'₇                (iv) Square-pyramidal
                           (v) Tetrahedral

The correct match among the following is :
       A   B    C    D
1.   (iii) (iv) (i) (ii)

2.   (iii) (i) (iv) (ii)

3.   (v) (iv) (iii) (ii)

4.   (iv) (iii) (ii) (i)

Which of the following reactions does not exhibit the oxidising behaviour of H₂SO₄?

1. Cu + 2H₂SO₄ → CuSO₄ + SO₂ + 2H₂O

2. 3S + 2H₂SO₄ → 3SO₂ + 2H₂O

3. C + 2H₂SO₄ → CO₂ + 2SO₂ + 2H₂O

4. CaF₂ + H₂SO₄ → CaSO₄ + 2HF

Match the compounds given in Column-I with the  shape given in Column-II and mark the correct option. 

Copper on heating with concentrated HNO₃ produces:

1. Cu(NO₃)₂ and NO       

2. Cu(NO₃)₂, NO and NO₂

3. Cu(NO₃)₂ and N₂O       

4. Cu(NO₃)₂ and NO₂