Question

$\Huge{\textbf{\textsf{{\color{blue}{Qu}}{\purple{es}}{\red{tion}}{\color{yellow}{:}}}}}$
Nitrogen dioxide gas and bromine gas both are brown in colour .How will you distinguish between them?
kindly don't spam !
5❤ = 20❤​

Answer 1

☞For Br2 - add Br2 to liquid alkene , the bromine decolourises. For NO2 -There is no simple relatively unambiguous test. So just check for bromine and other one is NO2.

.

.

.

.

.

.

#THE GREAT SHREYA ❤️

Answer 2

Answer:

$\huge ✔Verified Answer$

$\huge\color{blue}\boxed{\colorbox{lightgreen}{☆Ănswer☆}}$

Explanation:

It's a fairly interesting problem in analytical chemistry. Both the gases being reddish brown in colour it becomes tough to distinguish between them physically.

It's a fairly interesting problem in analytical chemistry. Both the gases being reddish brown in colour it becomes tough to distinguish between them physically.In my knowledge there are two (there could be definitely more ways) decent ways of distinguishing chemically→

1.Starch paper

2.Starch Iodide paper ( this one's might be a bit

ambiguous)

Starch paper →

Starch paper →Br2 forms a orange-red spot on the paper due to the formation of a complex with the natural polymer (Starch) whereas NO2 doesn't do so.

Starch Iodide paper→

Starch Iodide paper→Here we use the fact that NO2 is a better oxidiser compared to Br2.

I- + oxidiser →(I3)-

I- + oxidiser →(I3)-Now being a better oxidiser NO2 forms the spot immediately whereas Br2 takes time thereby helping us distinguish between them.

:-)

• Hope it helps you!!
• Please mark me as BRAINLIEST