Chapter 21, Problem 19QAP

Interpretation Introduction

(a)

Interpretation:

The given chemical reaction needs to be balanced.

${\text{Cl2(g) + 2 I}}^{\text{-}}\text{(aq) }\to$

Concept introduction:

The group-17 of the periodic table is also called as halogens. They are most reactive and most electro-negative non-metals. The reactivity and electro-negativity of elements decreases down in the group therefore, fluorine is most reactive halogen and iodine is least reactive halogen. In other words, in displacement reactions, a more reactive halogen can displace a less reactive halogen to form product such as chlorine can displace bromine from its solution but vice-versa is not possible. The reactivity order for halogens is

$\text{F2 > Cl2 > Br2 > I2}$

Interpretation Introduction

(b)

Interpretation:

The given chemical reaction needs to be balanced.

${\text{F2(g) + 2 Br}}^{\text{-}}\text{(aq) }\to$

Concept introduction:

The group-17 of the periodic table is also called as halogens. They are most reactive and most electro-negative non-metals. The reactivity and electro-negativity of elements decreases down in the group therefore fluorine is most reactive halogen and iodine is least reactive halogen. In other words, in displacement reactions, a more reactive halogen can displace a less reactive halogen to form product such as chlorine can displace bromine from its solution but vice-versa is not possible. The reactivity order for halogens is

$\text{F2 > Cl2 > Br2 > I2}$

Interpretation Introduction

(c)

Interpretation:

The given chemical reaction needs to be balanced.

${\text{I2(s) + Cl}}^{\text{-}}\text{(aq) }\to$

Concept introduction:

The group-17 of the periodic table is also called as halogens. They are most reactive and most electro-negative non-metals. The reactivity and electro-negativity of elements decreases down in the group therefore fluorine is most reactive halogen and iodine is least reactive halogen. In other words, in displacement reactions, a more reactive halogen can displace a less reactive halogen to form product such as chlorine can displace bromine from its solution but vice-versa is not possible. The reactivity order for halogens is

$\text{F2 > Cl2 > Br2 > I2}$

Interpretation Introduction

(d)

Interpretation:

The given chemical reaction needs to be balanced.

${\text{Br2(l) + 2 I}}^{\text{-}}\text{(aq) }\to$

Concept introduction:

The group-17 of the periodic table is also called as halogens. They are most reactive and most electro-negative non-metals. The reactivity and electro-negativity of elements decreases down in the group therefore fluorine is most reactive halogen and iodine is least reactive halogen. In other words; in displacement reactions, a more reactive halogen can displace a less reactive halogen to form product such as chlorine can displace bromine from its solution but vice-versa is not possible. The reactivity order for halogens is:

$\text{F2 > Cl2 > Br2 > I2}$