Question

Starch paper is used to test for the presence of

• A. Reducing agent
• B. Oxidising agent
• C. Iodide ion
• D. Iodine

Answer 1

Answer: (D)

Starch papers are used for iodine test
as: $I^{-}$+ oxidant $\to I_2$
$I^{-}$+ starch $\to$ blue colour