Language of chemistry Quiz - ICSE Class 7 Science

Free practice quiz: Language of chemistry (ICSE Class 7 Science). 51 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which of the following is the correct chemical symbol for Sodium?

   1. S
   2. So
   3. Na
   4. Sd
   Show answer

   Answer: C. Na

   The chemical symbol for Sodium is derived from its Latin name, Natrium. Therefore, 'Na' is the correct symbol.

2. What is the chemical symbol for Copper?

   1. Co
   2. Cp
   3. Cu
   4. Cr
   Show answer

   Answer: C. Cu

   The chemical symbol for Copper is 'Cu', derived from its Latin name 'Cuprum'.

3. Which of the following is the correct chemical formula for Glucose?

   1. C₆H₁₂O₆
   2. CH₂O
   3. C₁₂H₂₂O₁₁
   4. CO₂
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   Answer: A. C₆H₁₂O₆

   Glucose is a sugar with the chemical formula C₆H₁₂O₆, meaning it contains 6 Carbon atoms, 12 Hydrogen atoms, and 6 Oxygen atoms.

4. The chemical symbol for Mercury is Hg. What is its atomic number?

   1. 70
   2. 79
   3. 80
   4. 90
   Show answer

   Answer: C. 80

   Mercury (Hg) has an atomic number of 80, meaning it has 80 protons.

5. What does the chemical symbol 'Cl' represent?

   1. Chlorine
   2. Calcium
   3. Carbon
   4. Chromium
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   Answer: A. Chlorine

   The chemical symbol 'Cl' is used for the element Chlorine.

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