Which step is chain propagation step in the following mechanism? (.i.) Cl2 overseth v arrow Cl⋅ +Cl⋅ (.ii.) Cl⋅ +CH4 arrow ⋅ CH3+HCl (.iii.) Cl⋅ +Cl⋅ arrow Cl2 (.iv.) ⋅ CH3+⋅ Cl arrow CH3Cl

Question

Which step is chain propagation step in the following mechanism? (.i.) Cl2 overseth v arrow Cl⋅ +Cl⋅ (.ii.) Cl⋅ +CH4 arrow ⋅ CH3+HCl (.iii.) Cl⋅ +Cl⋅ arrow Cl2 (.iv.) ⋅ CH3+⋅ Cl arrow CH3Cl (A) (i) (B) (ii) (C) (iii) (D) (iv)

Tardigrade Admin · Accepted Answer

Photo chlorination of methane occurs in three steps i.e. initiation, propagation and termination. Chain propagating step is textCl⋅ + textCH4 arrow text. textC textH3 + textHCl .

Q. Which step is chain propagation step in the following mechanism?
$(i)$ $C l_{2} \to h v C l^{\cdot} + C l^{\cdot}$
$(ii)$ $C l^{\cdot} + C H_{4} \to^{\cdot} C H_{3} + H Cl$
$(iii)$ $C l^{\cdot} + C l^{\cdot} \to C l_{2}$
$(i v)$ $^{\cdot} C H_{3} +^{\cdot} Cl \to C H_{3} Cl$

(i)

(ii)

(iii)

(iv)

Photo chlorination of methane occurs in three steps i.e. initiation, propagation and termination.
Chain propagating step is $Cl^{\cdot} + CH_{4} \to_^{.} C H_{3} + HCl$ .

Q. Which step is chain propagation step in the following mechanism? (i) Cl2​→hvCl⋅+Cl⋅ (ii) Cl⋅+CH4​→⋅CH3​+HCl (iii) Cl⋅+Cl⋅→Cl2​ (iv) ⋅CH3​+⋅Cl→CH3​Cl

(i)

(ii)

(iii)

(iv)

Photo chlorination of methane occurs in three steps i.e. initiation, propagation and termination. Chain propagating step is Cl⋅+CH4​→_.CH3​+HCl .

Q. Which step is chain propagation step in the following mechanism?
$(i)$ $C l_{2} \to h v C l^{\cdot} + C l^{\cdot}$
$(ii)$ $C l^{\cdot} + C H_{4} \to^{\cdot} C H_{3} + H Cl$
$(iii)$ $C l^{\cdot} + C l^{\cdot} \to C l_{2}$
$(i v)$ $^{\cdot} C H_{3} +^{\cdot} Cl \to C H_{3} Cl$

Photo chlorination of methane occurs in three steps i.e. initiation, propagation and termination.
Chain propagating step is $Cl^{\cdot} + CH_{4} \to_^{.} C H_{3} + HCl$ .