Pick out the incorrect statement regarding halogens

Options

A. Chlorine is hydrolysed by water to form hydrochloric acid and hypochlorous acid
B. Bromine and iodine react with NaOH solution to form halide and halate ion
C. Chlorine reacts with cold dilute NaOH solution to give sodium chloride and sodium chlorate
D. lodine forms a deep blue colour with starch solution.\

Answer

C

Explanation

`Cl_2` reacts with cold dilute NaOH solution to form NaCl and NaOCI.
`2NaOH+ Cl_(2) to NaCl+ NaClO+H_(2)O`
`Cl_(2)` forms NaCl and `NaClO_(3)` only above `75^(@)C`
(a) `Cl_(2)(aq)+2H_(2)O Leftrightarrow H_(3)O^(+)+Cl^(-)+HOCl`
(b) `6NaOH+3X_(2) to 5NaX+NaXO_(3)+3H_(2)`,
Where X=Br, I
(d) It is thought that `I_2` molecules reside inside the spiral structure of starch molecule giving deep blue colour.