chemistry quiz

What happens when metals react with non-metals?

• Protons from the metal atoms are transferred to the non-metal atoms

• Protons from the non-metal atoms are transferred to the metal atoms

• Electrons from the metal atoms are transferred to the non-metal atoms

• Electrons from the non-metal atoms are transferred to the metal atoms

What is the result of the reaction between sodium and air?

• Sodium nitrate

• Sodium hydroxide

• Sodium chloride

• Sodium oxide

Answer explanation

When sodium reacts with air, it forms sodium oxide, making it the correct choice.

What is the product of the burning of magnesium in oxygen?

• Magnesium nitrate

• Magnesium hydroxide

• Magnesium oxide

• Magnesium chloride

What is the color of the flame produced when potassium burns?

• Golden-yellow

• Lilac

• White

• Red

What is the nature of carbon dioxide?

• Alkaline

• Acidic

• Neutral

• Basic

What is the product of the burning of sulphur?

• Sulphur nitrate

• Sulphur chloride

• Sulphur oxide

• Sulphur dioxide

What is the compound formed when a candle burns in oxygen?

• Water vapor

• Carbon monoxide

• Hydrogen peroxide

• Carbon dioxide

What is the product of the burning of iron in air?

• Iron nitrate

• Iron hydroxide

• Iron chloride

• Iron oxide

What is the mass change during the process of burning?

• The mass remains the same

• The mass decreases

• The mass changes randomly

• The mass increases

What is the nature of sulphur dioxide?

• Acidic

• Neutral

• Alkaline

• Basic

Answer explanation

Sulphur dioxide is acidic in nature due to its ability to form sulphurous acid in water.