Flames

Question 1

What does carbon (C) form when it reacts with oxygen?

Answer 1

Carbon dioxide (CO₂)

Carbon burns with a sparkles and crackling sound flame.

Question 2

What color flame does potassium (K) produce when it burns?

Answer 2

Lilac flame

Potassium forms potassium oxide (K₂O) upon burning.

Question 3

What does sulphur (S) produce when it burns?

Answer 3

Sulphur dioxide (SO₂)

Sulphur burns with a brilliant blue flame.

Question 4

What is formed when phosphorus (P) burns?

Answer 4

Phosphorus pentoxide (P₂O₅)

Phosphorus burns with a dazzling white flame.

Question 5

What product is formed from the burning of magnesium (Mg)?

Answer 5

Magnesium oxide (MgO)

Magnesium burns with a dazzling white flame.

Question 6

What does calcium (Ca) form when it burns?

Answer 6

Calcium oxide (CaO)

Calcium burns with a brick-red flame.

Question 7

What color flame does sodium (Na) produce when it burns?

Answer 7

Golden yellow flame

Sodium forms sodium oxide (Na₂O) or sodium peroxide upon burning.