why dichromate ions are used as breath analyzer?????????\


2 years ago


Answers : (1)


When the user exhales into a breath analyzer, any ethanol present in their breath is oxidized to acetic acid at the anode:

CH3CH2OH(g) + H2O(l) → CH3CO2H(l) + 4H+(aq) + 4e-

At the cathode, atmospheric oxygen is reduced:

O2(g) + 4H+(aq) + 4e- → 2H2O(l)

The overall reaction is the oxidation of ethanol to acetic acid and water.

CH3CH2OH(l) + O2(g) → CH3COOH(l) + H2O(l)

The electrical current produced by this reaction is measured by a microprocessor, and displayed as an approximation of overall blood alcohol content

2 years ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details
Explain Bragg s equation ?
sri 11 months ago
n(Y) = 2d sin(tita) where d- inter planar distance tita is angle of incident by X-ray Y-wave length n-order of reflection.
G.Rajashekar 11 months ago
why are s,p,d,f block written is small letter
dear friend its just a method of representing the various orbitals. actually it is the azimuthal quantum number for l=0 we have s orbital l=1 p orbital l=2 d orbital l=3 f orbital and so on...
Sunil Kumar FP 13 days ago
is ncert level knowledge enough for doing competetion level inorgang chem. as it only requires learning by heart ( in aipmt or jee mains both have same level )
no my dear friend if you really want to have good command then you should read OPtandon inorganic chemistry along with NCERT.you can also try reading JDLEE but at the last.but optandon+NCERT...
Sunil Kumar FP 23 days ago
Calculate the degree of dissociation of PCl 5 if the vapour density at the given temperature is 70.
initial vapour densuty/vapour density at equilibrium=mole at equilibrium/mole initial PCL5 -----PCL3 +CL2 let the initial concentration be C concentration of PCL5=C-Cx, x is the degree of...
Sunil Kumar FP 29 days ago
In a closed vessel , how is pressure exerted by gas molecules on walls of the vessel related to no.of moles of gas molecules ?
we know that PV = nRT where P=pressure, V = volume , n = no. of moles. R = constant, T = temp. when we increase the the temperature of closed vessel then then the molecules of gas exert a...
kartik kumar 14 days ago
The homolytic fission of a hydrocarbon results in the formation of:- (a) carbonium ion (b) free radicals (c) carbanions (d) carbenes
It results in the formation of free radicals . Thanks & Regards Ruchi Shaw askIITians faculty
Ruchi Shaw 5 months ago
It results in the formation of free radicals
sivakrishna 5 months ago
free radicals
raj kumar 5 months ago
View all Questions »