SCIENCE QUIZ ON Physical And Chemical Changes

Magnesium ribbon burns with a _________.

• Brilitant White flame

• Briliant Yellow flame

• Dazzling White flame

• Dazzaling White flame

Copper Sulphate is also known as ______.

• Blue vitriol

• Blue

• Copper Sulphate Solution

• Blue vetriol

What is the equation of Rusting of iron ?

(Iron) Fe + O₂ + H₂O = _________

• Fe₃ O₂

• Their is no formula for rusting

• Fe₂ O₃

What is Galvanisation ?

• A solution of zinc

• The process of depositing a layer of zinc on iron

• A process where green plants make food

• A physical change

What is crystallization ?

• Into crystals

• There is nothing like that

• A process when salt get crystallized

• A process where a dry chemical is converted into crystal by their solution

: Just type :

Complete the equation

Magnesium + Oxygen = ________

{ There is enough time }