The gaseous substance which decolourises bromine but does not give a precipitate with ammoniacal silver nitrate is:

Question

The gaseous substance which decolourises bromine but does not give a precipitate with ammoniacal silver nitrate is: (A)  C2H6  (B)  C2H4  (C)  C2H2  (D)  CH4

Tardigrade Admin · Accepted Answer

Unsaturated compounds like ethylene and acetylene decolourise textB textr text2 water. Acetylene gives precipitate with ammoniacal textAgN textO text3 but with ammoniacal textAgN textO text3 ethylene do not give any reaction. undersetCH oversetCH mathop| | | xrightarrowAg(NH3)2NO3 undersetC.Ag oversetCH mathop| | | xrightarrowAg(NH3)2NO3 underset beginsmallmatrix text(white textppt) textDisilver textacetylide endsmallmatrix mathop undersetC.Ag oversetC.Ag mathop| | | C2H4 xrightarrowAg(NH3)2NO3 No reaction

Q. The gaseous substance which decolourises bromine but does not give a precipitate with ammoniacal silver nitrate is:

$C_{2} H_{6}$

$C_{2} H_{4}$

$C_{2} H_{2}$

$C H_{4}$

Q. The gaseous substance which decolourises bromine but does not give a precipitate with ammoniacal silver nitrate is:

C2​H6​

C2​H4​

C2​H2​

CH4​

$C_{2} H_{6}$

$C_{2} H_{4}$

$C_{2} H_{2}$

$C H_{4}$