Asappp in which of the following reactions is chlorine (ci) oxidized? a. br2 + 2ci” = ci2 +2br” b. ci2 + 2e” = 2ci” c. 2cio3” + 12h+ = ci2 + 6h2o d. 2na + ci2 = 2naci

Option (A) is the correct answer.

Explanation:

When there is an increase in oxidation state or release of electron from an atom then this process is known as oxidation.

In the reaction, , the oxidation and reduction equations are as follows.

Reduction:  

Oxidation:  

Also, in the above reaction, oxidation state of chlorine increases from -1 to 0. Therefore, chlorine is oxidized in this reaction.

In the reaction, , the oxidation state of chlorine reduces from 0 to -1. Therefore, chlorine is reduced in this reaction.

In the reaction, , the oxidation state of chlorine reduces from +6 to 0. Therefore, chlorine is reduced in this reaction.

In the reaction, , the oxidation state of chlorine reduces from 0 to -1. Therefore, chlorine is reduced in this reaction.

false

because it does not have the potential to be entirely used up

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.