8th ICSE Language of Chemistry Question and Answer

Practice important ICSE Class 8 exam-oriented questions on Language of Chemistry including MCQs, Fill in the blanks, Radicals, Formula writing, and Balanced equations.

ICSE Class 8 Chemistry Worksheet

ICSE Class 8 Chemistry Worksheet is a complete exam-oriented worksheet designed for Class 8 students preparing for ICSE school tests and final exams. This worksheet includes MCQs, Fill in the Blanks, True or False, Match the Following, Radicals-based questions, Formula writing, Balancing equations, and Long Answer questions. With detailed answer keys, it helps students in self-study, revision, and exam preparation.

By solving this worksheet, students can strengthen their understanding of symbols, valency, radicals, formula writing, and chemical equations. These topics are the foundation of Chemistry and are useful not only for ICSE but also for CBSE and State Board students. Practicing such exam-oriented questions will improve speed, accuracy, and concept clarity.

Our Agastya Classes ICSE Worksheet ensures that students are well-prepared before exams. The additional section on Balancing Word Equations makes this worksheet more effective for practice. It is a complete resource for Class 8 Chemistry – Language of Chemistry.

✨ Key Benefits of this Worksheet

• Covers all important exam-oriented questions of Class 8 ICSE Chemistry
• Includes MCQs, Radicals, Balanced Equations, and Formula Writing
• Answer keys are provided for self-checking
• Boosts confidence before school and board exams
• Useful for ICSE, CBSE, and State Board students

❓ FAQ

Q1: Is this worksheet useful only for ICSE students?
Ans: No, it is also useful for CBSE and State Board students studying the Language of Chemistry chapter in Class 8.

Q2: Does the worksheet include answer keys?
Ans: Yes, every section has a detailed answer key for revision and self-assessment.

Q3: How will this worksheet help in exams?
Ans: It covers frequently asked questions – MCQs, Radicals, Balanced Equations, and Long Answers – making it a complete practice set for ICSE exams.

Q4: Can I download this worksheet in PDF?
Ans: Yes, the full worksheet with answers is available in PDF format through the download link in the blog.

Section A – Multiple Choice Questions (MCQs)

1. The symbol of copper is: a) Co b) Cu c) Cp d) C
2. The formula of potassium nitrate is: a) KNO₂ b) KNO₃ c) K₂NO₃ d) K₂NO₂
3. Which of the following is a gaseous non-metal? a) Sodium b) Bromine c) Nitrogen d) Zinc
4. The valency of magnesium is: a) 1 b) 2 c) 3 d) 4
5. The correct balanced equation for hydrogen + oxygen → water is: a) H₂ + O₂ → H₂O b) 2H₂ + O₂ → 2H₂O c) H₂ + 2O₂ → H₂O₂ d) H₂O → H₂ + O₂

View Answer Key – Section A

1. b) Cu
2. b) KNO₃
3. c) Nitrogen
4. b) 2
5. b) 2H₂ + O₂ → 2H₂O

Section B – Fill in the Blanks

1. The symbol of calcium is ________.
2. The valency of oxygen in water is ________.
3. The radical containing nitrogen and hydrogen only is ________.
4. The chemical formula of sodium bisulphate is ________.
5. A word equation represents a reaction in ________ form.

View Answer Key – Section B

1. Ca
2. 2
3. NH₄⁺ (Ammonium)
4. NaHSO₄
5. Word form

Section C – True or False

1. The symbol of lead is Pb. (____)
2. An equation must always be balanced according to the law of conservation of mass. (____)
3. Iron has a fixed valency only. (____)
4. The formula of aluminium sulphate is Al₂(SO₄)₃. (____)
5. Chloride ion has a valency of 1⁻. (____)

View Answer Key – Section C

1. True
2. True
3. False
4. True
5. True

Section D – Match the Following

1. Potassium permanganate
2. Magnesium nitrate
3. Ferrous sulphate
4. Copper (II) oxide
5. Sodium carbonate

a) Mg(NO₃)₂   b) KMnO₄   c) FeSO₄   d) CuO   e) Na₂CO₃

View Answer Key – Section D

1 → b) KMnO₄
2 → a) Mg(NO₃)₂
3 → c) FeSO₄
4 → d) CuO
5 → e) Na₂CO₃

Section E – Radicals Based Questions

A. Match the Radicals with their Valency

1. Hydroxide (OH)
2. Sulphate (SO₄)
3. Carbonate (CO₃)
4. Nitrate (NO₃)
5. Ammonium (NH₄)

a) 2– b) 1– c) 1+ d) 2– e) 1–

B. Fill in the Blanks

1. The valency of the radical carbonate is ________.
2. The formula of the radical bisulphite is ________.
3. The radical phosphate has valency ________.
4. The radical oxide carries charge ________.
5. The radical present in aluminium hydroxide is ________.

C. Identify Radicals or Elements

1. NO₃ (____)
2. Zn (____)
3. SO₄ (____)
4. Cl (____)
5. NH₄ (____)

View Answer Key – Section E

A. Matching: OH → 1–, SO₄ → 2–, CO₃ → 2–, NO₃ → 1–, NH₄ → 1+

B. Fill Ups: 1. 2, 2. HSO₃⁻, 3. 3–, 4. 2–, 5. Hydroxide (OH⁻)

C. Radical or Element: NO₃ → Radical, Zn → Element, SO₄ → Radical, Cl → Element, NH₄ → Radical

Section F – Write the Correct Chemical Formula

1. Aluminium hydroxide
2. Calcium bicarbonate
3. Sodium sulphite
4. Copper (I) chloride
5. Iron (III) oxide

View Answer Key – Section F

1. Al(OH)₃
2. Ca(HCO₃)₂
3. Na₂SO₃
4. CuCl
5. Fe₂O₃

Section G – Balance the Equations

1. Zn + HCl → ZnCl₂ + H₂
2. Al + O₂ → Al₂O₃
3. Na₂O + H₂O → NaOH
4. CaCO₃ → CaO + CO₂
5. Pb + O₂ → PbO₂

View Answer Key – Section G

1. Zn + 2HCl → ZnCl₂ + H₂
2. 4Al + 3O₂ → 2Al₂O₃
3. Na₂O + H₂O → 2NaOH
4. CaCO₃ → CaO + CO₂
5. Pb + O₂ → PbO₂

Section H – Short/Long Answer Questions

1. Define the term symbol with an example. Why is the symbol of copper written as Cu?
2. Define valency. State the valency of oxygen and nitrogen with examples.
3. Explain the term variable valency with the help of copper. Write the names of compounds CuCl and CuCl₂.
4. Differentiate between ion and radical with suitable examples.
5. Write the steps involved in writing a balanced chemical equation.

View Answer Key – Section H

1. Symbol is the short form for an element. Copper is written as Cu (from Latin 'Cuprum').
2. Valency is combining capacity. Oxygen → 2, Nitrogen → 3.
3. Variable valency: Copper shows +1 (CuCl) and +2 (CuCl₂).
4. Ion: charged atom (Na⁺). Radical: group of atoms with charge (SO₄²⁻).
5. Steps: write → count → multiply coefficients → check mass → final balanced equation.

Section G2 – Balance the Equations from Word Equations

1. Hydrogen + Chlorine → Hydrogen chloride
2. Sodium + Water → Sodium hydroxide + Hydrogen
3. Calcium + Oxygen → Calcium oxide
4. Aluminium + Hydrochloric acid → Aluminium chloride + Hydrogen
5. Iron + Steam → Iron(III) oxide + Hydrogen

View Answer Key – Section G2

1. H₂ + Cl₂ → 2HCl
2. 2Na + 2H₂O → 2NaOH + H₂
3. 2Ca + O₂ → 2CaO
4. 2Al + 6HCl → 2AlCl₃ + 3H₂
5. 3Fe + 4H₂O → Fe₃O₄ + 4H₂

🔗 Related ICSE Class 8 Resources

For more exam-oriented practice and to boost your preparation, check out these important study materials for Class 8 ICSE students:

• 📘 8th ICSE Previous Year Questions
• 📝 8th ICSE Sample Question Paper

📥 Download Question & Answer Worksheet PDF