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Chapter 4: Q4.65 P (page 180)

Give the oxidation number of bromine in the following

(a)KBr(b)BrF3(c)HBrO3(d)CBr4

Short Answer

Expert verified

Answer:You need to provide the oxidation no of bromine for the given compounds.

Step by step solution

01

Oxidation state of bromine in KBr

Oxidation state of potassium is +1.

Let, oxidation state of bromine in KBr is x.

No you can write,

+1+x=0x=-1

Hence, oxidation state of bromine in KBr is -1.

02

Oxidation state of bromine in BrF3 

Oxidation state of Flurine is -1.

Let, oxidation state of bromine in BrF3 is y.

No you can write,

y+3-1=0y=+3

Hence, oxidation state of bromine in BrF3 is +3.

03

Oxidation state of bromine in HBrO3 

Oxidation state of Hydrogen is +1.

Oxidation state of Oxygen is -2.

Let, oxidation state of Bromine in HBrO3is z.

No you can write,

+1+z+3-2=0z=+5

Hence, oxidation state of Bromine in HBrO3 is +5

04

Oxidation state of bromine in CBr4 

Oxidation state of Carbon is +4.

Let, oxidation state of bromine in CBr4is k.

No you can write,

+4+4k=04k=-4k=-1

Hence, oxidation state of bromine in CBr4is -1.

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