Chemistry, 17.07.2020 19:01 miguearrobita

Bromine water was added dropwise to test tubes containing aqueous solutions of bromide, chloride, and iodide. lodide was oxidized to iodine; bromide and chloride gave no reaction Arrange Br 2 ,Cl 2 ,I 2 in order of their strength as an oxidizing agent.

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Answer from: bbyjoker

Cl₂ > Br₂ > I₂

Explanation:

An oxidizing agent gains electron for itself by removing electrons from other reactants during a reaction. Oxidation is the loss of electrons. Chlorine can take electron from bromine and chlorine while bromine can take electron from iodine, therefore chlorine is a more oxidizing agent than bromine and iodine while bromine is a more oxidizing agent than iodine.

Oxidizing ability decreases down the group.

Therefore Cl₂ > Br₂ > I₂

Answer from: Quest

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

Answer from: Quest

answer: - 3.) the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

solution: - as per the rules, oxidation number of oxygen in its compounds is -2. the sum of oxidation numbers of all the elements of a molecule or compound is zero.

also, the oxidation number in elemental form is zero.

in no, the oxidation number of o is -2 so the oxidation number of n is +2 so that the sum is zero.

similarly, the oxidation number of c in co is +2 and o is -2.

on product side the oxidation number of n is 0 as it is in the elemental form( $n_2$ ) .

oxidation number of c in carbon dioxide is +4 as there are two oxygen in it and we know that each oxygen is -2.

so, oxidation number of n is changing from +2 to 0 and the oxidation number of c is changing from +2 to +4.

since nitrogen is reduced and hence no is acting as an oxidizing agent. carbon is oxidized and so co is acting as a reducing agent.

so, the right choice is number 3.)the oxidation state of nitrogen in no changes from +2 to 0, and the oxidation state of carbon in co changes from +2 to +4 as the reaction proceeds.

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Bromine water was added dropwise to test tubes containing aqueous solutions of bromide, chloride, an...