Chemistry · Science General

Common Chemical Compounds and Reactions

1,197 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 setting & hardening of cement after addition of water is due to

  1. The presence of gypsum

  2. Binding action of water

  3. Hydration of some of the constituent compound of cement

  4. Evaporation of water

  5. Due to presence lime.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Setting and hardening occurs due to formation of Bogue's compounds Dicalcium silicate, Tricalcium silicate and tricalcium aluminate.

Multiple choice

Sodium phosphate

  1. makes water alkaline

  2. removes Ca�⁺ and Mg�⁺ ion

  3. known as a booster

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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Multiple choice

Which of the following is rich in deuterium?

  1. Soft water

  2. Heavy water

  3. Hard water

  4. Distilled water
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct Answer: Heavy water Deuterium is the heavier isotope of hydrogen, and water molecule that comprises of deuterium atoms is called heavy water. 

Multiple choice

Gypsum is

  1. CaSO4H2O

  2. CaSO4. 2H2O

  3. CaSO4.½H2O

  4. CaCl2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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Multiple choice

Quick lime is

  1. CaCO3

  2. CaO

  3. CaSO4 2 H2O

  4. Ca(OH)2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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Multiple choice

Heavy water is

  1. D2O

  2. H2O along with Ca and Mg carbonates

  3. H2O2

  4. Sea water (H2O + Salt)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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