Chemistry · Science General

Common Chemical Compounds and Reactions

1,204 Questions

Common chemical compounds and reactions questions test your knowledge of everyday chemicals, their formulas, and their interactions. Topics include properties of acids and bases, hard water chemistry, and compounds like baking soda and plaster of paris. This section is essential for general science preparation.

Acids and basesPlaster of parisHard water chemistryCommon chemical formulasEveryday chemical reactions

Common Chemical Compounds and Reactions Questions

Multiple choice

The chemical name of the plaster of paris is

  1. calcium sulphate

  2. calcium bromide

  3. calcium selenium

  4. calcium radon

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plaster of Paris is a quick-setting gypsum plaster consisting of a fine white powder, calcium sulfate hemihydrate. It hardens when moistened and allowed to dry.

Multiple choice

The chemical name of limewater is

  1. calcium hydroxide

  2. ammonium hydroxide

  3. magnesium hydroxide

  4. sodium hydroxide
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Limewater is a common name for a saturated aqueous solution of calcium hydroxide, Ca(OH)2.

Multiple choice

What is the chemical name for ‘baking soda’?

  1. Sodium carbonate

  2. Sodium bicarbonate

  3. Sodium nitrite

  4. Sodium nitrate

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Baking soda is chemically known as sodium bicarbonate (NaHCO3). Sodium carbonate is commonly known as washing soda.

Multiple choice

What is Calamine?

  1. Sodium carbonate

  2. Ammonium carbonate

  3. Zinc carbonate

  4. Calcium carbonate
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Calamine lotion is primarily composed of zinc oxide or zinc carbonate.