Question

material is when exposed to moist air to form b b is a reddish brown colour compound find out a and b with the chemical equation​

Answer 1

HEY BRAINLIANS.♡♡

$\bold {\huge {Your ~answer :-}}$

a⇒Fe (Iron)

b⇒Fe2O³H2O ( Hydrrated Iron Oxide)

════════════════

》Rusting is the process which takes place when an iron article comes in contact with moist air (oxygen+water). It results in forming a brown flaky substance on the iron article.

》The iron rust is known as Hydrated Iron(III) oxide.

》Iron gets converted in to a reddish-brown hydrated oxide of iron this conversion is called rusting and the reddish-brown hydrated oxide of iron  is called rust.

═════════════════════

●Chemical Equation—

4Fe + 3xO2 + 2H2O ----> 2Fe2O3. xH2O

Here x can be variable

════════════════

TNXX, HOPE U LIKE IT☆☆☆☆