The following facts are availabel `:`
`2A^(c-)+B_(2) rarr 2B^(-)+A_(2),`
`2C^(c-)+B_(2) rarr No reaction, `
`2D^(c-)+A_(2) rarr 2A^(c-)+D_(2)`
Which of the following statement is correct ?

Options

A. ` E_(W^(-)//W_2)^@ gt E_(Y(-)//Y_2)^@ gt E_(X^(-)//X_2)^@ gt E_(Z^(-)//Z_2)^@ gt E_(Z^(-)//Z_2)^@`
B. ` E_(W^(-)//W_2)^@ gt E_(Y(-)//Y_2)^@ gt E_(X^(-)//X_2)^@ gt E_(Z^(-)//Z_2)^@ gt E_(Z^(-)//Z_2)^@`
C. ` E_(W^(-)//W_2)^@ gt E_(Y(-)//Y_2)^@ gt E_(X^(-)//X_2)^@ gt E_(Z^(-)//Z_2)^@ gt E_(Z^(-)//Z_2)^@`
D. ` E_(W^(-)//W_2)^@ gt E_(Y(-)//Y_2)^@ gt E_(X^(-)//X_2)^@ gt E_(Z^(-)//Z_2)^@ gt E_(Z^(-)//Z_2)^@`

Answer

B

Explanation

` 2X ^(-) + Y_2 rarr 2Y^(-) +X_2 rarr E_(Y_2//Y^(-))^@ gt `E_(X_2//X^(-))^@`
`2 Z ^(-) + Y_2 rarr 2 X ^(-) + Z_2 rarr Z_2 rarr E_(X_2//X^(-))^@ gt E_(Z_2//Z^(-))^@`
`2W^(-) + Y_2 rarr ` no reaction ` rArr E_(W_2//W^(-))^@ gt E_(Y_2//Y^(-))^@` .