UPSEE Solved Model Paper 6

The wrong statement is option (d). The correct statement for that is :
Rate of disappearance of A per mole = −

1

a

(

Δ[A]

Δt

)
Rate of disappearance of B per mole = −

1

b

(

Δ[B]

Δt

)
=

− 1 a ( Δ[A] Δt )

− 1 b ( Δ[B] Δt )

=

1

a

(

Δ[a]

Δt

)×

b

1

(

Δt

Δ[B]

)
=

b

a

(

Δ[A]

Δ[B]

)
So that, =

b

a

(

Δ[A]

Δ[B]

)
and, ≠

a

b

So, option d is wrong statement