SEBA Class 10 Chemistry Additional Sample Questions 2024-25: Download FREE PDF

Assam Board Class 10 Chemistry Additional Questions Chapter-Wise 2025: The Secondary Education Board of Assam (SEBA) has released the additional sample questions for the High School Leaving Certificate (HSLC) Chemistry. These questions are provided for additional practice of the subject and allow students to understand the types of questions that can be formed from a chapter. The additional question PDF for SEBA 10th Chemistry has multiple choice questions, fill-in-the-blanks, true and false questions, and match the following: assertion and reason type, comprehension type, numerical value types, and case study-based questions from each chapter.

Assam Board HSLC Chemistry Additional Questions Chapter-Wise

CHEMICAL REACTION AND EQUATIONS

Single Option Correct

1. a Mg₃N₂+ b H₂O →c Mg(OH)₂ + d NH₃. When the equation is balanced, the coefficients a, b, c, d respectively are

(a) 1, 3, 3, 2

(b) 1,6,3,2

(c) 1, 2, 3, 2

(d) 2, 3, 6, 2

2. Heat is evolved during

(a) endothermic reaction

(b) displacement reaction

(c) combustion reaction

(d) both (b) and (c)

3. Which of the following reactions evolves heat?

(a) C + O₂ → CO₂

(b) C₆H₁₂O₆ + 6O₂→ 6CO₂ + 6H₂O

(c) CaO + H₂O → Ca(OH)₂

(d) All of these

4. Which of the following is not a chemical reaction?

(a) Souring of milk

(b) Dissolution of sugar in water

(c) Rusting of iron

(d) Digestion of food in our body

5. Which of the following occurs as a solution in the following reaction

Zinc + Sulphuric acid → Zinc sulphate + Hydrogen

(a) Zinc (b) Hydrogen (c) Sulphuric acid (d) Sulphuric acid and zinc sulphate

6. C₂H₆ (g) + nO₂ (g) → CO₂ (g) + H₂O (l)

In this equation, ratio of the coefficients of CO₂ and H₂O is

(a) 1:1

(b) 2:3

(c) 3:2

(d) 1:3

7. In the chemical reaction

K₂Cr₂O₇ + XH₂SO₄+YSO₂→ K₂SO₄ + Cr₂(SO₄)₃ + ZH₂O

X, Y and Z are

(a) 1, 3, 1

(b) 4, 1, 4

(c) 3, 2, 3

(d) 2, 1, 2

8. Which of the products is incorrectly matched when the reactant is burnt in air?

Reactant Product

• Magnesium ribbon Magnesium oxide
• Carbon Carbon dioxide
• Sulphur Hydrogen sulphide
• Hydrogen Water

9. In the following equation:

Na₂CO₃ + xHCl → 2NaCl + CO₂ + H₂O, the value of x is

(a) 1

(b) 2

(c) 3

(d) 4

10. Which of the following is not a physical change?

(a) Boiling of water to give water vapour (b) Melting of ice to give water

(c) Dissolution of salt in water (d) Combustion of Liquefied Petroleum Gas (LPG)

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To check and download the further questions click on the link below :

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Importance of Additional Sample Questions in Chemistry

Chemistry is one of the subjects that students struggle to understand and grasp over concepts because of assumption-based principles. Practicing as many questions as possible is the only to have common over such subjects. This is why, the Assam Board published additional sample questions for Chemistry. Students can understand the types and varieties of questions that can be created from a chapter. 

Related:

• SEBA Class 10 Model Papers 2024-25 (All Subjects)

• NCERT Class 10 Revised Textbooks PDFs (All Subjects)