What is Rust ? What are the necessary conditions for rusting ?

Define rusting. What are the two necessary conditions for rusting of iron ? Give the chemical name of rust.

What is the necessary condition for hydrogen bonding?

What is rusting? State the conditions required for rusting.

Rust is

Rust is

What are the necessary conditions for autotrophic nutrition and what are its by- products?

What are .beats. ? Explain their production. State the necessary conditions for the production of beats.

What are the two necessary conditions for the colliding molecules to yield the products ?

What are the two necessary conditions for the direct combination of sulphur dioxide and chlorine forming sulphuryl chloride ?

What are the necessary conditions for any system to be aromatic?