Which of the following order is incorrect ?

Options

A. `HF lt HCl lt HBr lt HI("Acidic strength")`
B. `NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3) gt BiH_(3) ("Bond angle")`
C. `F_(2) lt Cl_(2) lt Br_(2) lt I_(2) ("Reactivity")`
D. `B lt Al gt Ga lt In lt Ti` (Atomic size)

Answer

C

Explanation

Correct orders are:
`HF lt HCl lt HBr lt HI ("For acidic strength")`
`NH_(3) gt PH_(3) gt AsH_(3) gt SbH_(3) gt BiH_(3)` (Bond amgle of central atom decreases from N to Bi)
`B lt Al gt Ga gt In lt Ti` (Atomic size)
`F_(2) gt Cl_(2) gt Br_(2) gt I_(2)` (Reactivity of Halogens decreases from fluorine to Iodine)