Mid Term Science Important Questions 2026 |best pdf
Class 10 Science Midterm Important Questions 2026 की तैयारी करने वाले विद्यार्थियों के लिए यह सामग्री बेहद उपयोगी है। इसमें Class 10 Science के Chapter-wise Important Questions को सरल और परीक्षा-केंद्रित तरीके से शामिल किया गया है। ये प्रश्न NCERT आधारित हैं और Midterm Exam में पूछे जाने वाले महत्वपूर्ण concepts, definitions, short answer questions और long answer questions की तैयारी में मदद करेंगे।
अगर आप कम समय में Science की बेहतर तैयारी करना चाहते हैं, तो इन Midterm Science Important Questions 2026 का नियमित अभ्यास करें। साथ ही, प्रत्येक chapter के महत्वपूर्ण topics को revise करके अपनी तैयारी को मजबूत बनाएं। यहाँ दिए गए Important Questions PDF को आप परीक्षा से पहले quick revision और practice के लिए भी उपयोग कर सकते हैं।
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Science Midterm Important Questions 2026 pdf
Mid Term Science Important Questions 2026 |best pdf
Question answer
Q1.Balance the following equations and
identify the type of reaction.
(a) Fe + H₂O → Fe₃O₄ + H₂
(b) AgNO₃ + NaCl → AgCl + NaNO
Ans: (a) Fe + H₂O → Fe₃O₄ + H₂
Balanced equation: 3Fe+4H2O→Fe3O4+4H2\boxed{3Fe + 4H_2O \rightarrow Fe_3O_4 + 4H_2}
Type of reaction: Redox reaction (oxidation and reduction both occur).
(b) AgNO₃ + NaCl → AgCl + NaNO₃
Balanced equation: AgNO3+NaCl→AgCl+NaNO3\boxed{AgNO_3 + NaCl \rightarrow AgCl + NaNO_3}
Type of reaction: Double displacement reaction and also a precipitation reaction, because insoluble AgCl forms.
Q2.Explain what happens when an acid
reacts with:
(i) A metal
(ii) A metal carbonate
(iii) A base
Ans: (i) A metal:
Acid reacts with a metal to form salt and hydrogen gas.
Example: Zn+2HCl→ZnCl2+H2↑
(ii) A metal carbonate:
Acid reacts with a metal carbonate to form salt, water and carbon dioxide gas.
Example: CaCO3+2HCl→CaCl2+H2O+CO2↑
(iii) A base:
Acid reacts with a base to form salt and water. This is called a neutralisation reaction.
Example: HCl+NaOH→NaCl+H2O
Mid Term Science best pdf
Q3. Differentiate between Combination and Decomposition Reactions with one example each.
Ans;
| Combination Reaction | Decomposition Reaction |
|---|---|
| Two or more substances combine to form a single product. | A single compound breaks down into two or more products. |
| General form: A + B → AB | General form: AB → A + B |
| Example: CaO + H₂O → Ca(OH)₂ | Example: CaCO₃ → CaO + CO₂ |
Q4. Explain Thermal, Electrolytic and Photochemical Decomposition with Examples..
Ans:
Decomposition reactions are reactions in which one compound breaks down into two or more simpler substances. Depending on the source of energy used, they are of three types:
(i) Thermal Decomposition Reaction
When a compound decomposes on heating, it is called thermal decomposition.
Example: CaCO3→ΔCaO+CO2\boxed{CaCO_3 \xrightarrow{\Delta} CaO + CO_2}
Here, calcium carbonate decomposes into calcium oxide and carbon dioxide on heating.
(ii) Electrolytic Decomposition Reaction
When a compound decomposes due to the passage of electric current, it is called electrolytic decomposition.
Example: 2H2O→Electricity2H2+O2\boxed{2H_2O \xrightarrow{Electricity} 2H_2 + O_2}
Water decomposes into hydrogen and oxygen gases when electricity is passed through it.
(iii) Photochemical Decomposition Reaction
When a compound decomposes in the presence of light, it is called photochemical decomposition.
Example: 2AgCl→Sunlight2Ag+Cl2\boxed{2AgCl \xrightarrow{Sunlight} 2Ag + Cl_2}
Silver chloride decomposes into silver and chlorine in the presence of sunlight.
Class 10 Science Exam Preparation
