Subject: General Science
Book: NCERT Chemistry Class 11
Chemistry is the study of matter and its properties.
- **Laws of Chemical Combination**:
- Law of Conservation of Mass.
- Law of Definite Proportions.
- **Mole Concept**:
- 1 mole = 6.022 × 10²³ particles.
- Used for stoichiometric calculations.
- **Atomic and Molecular Mass**:
- Atomic mass: Mass of an atom relative to Carbon-12.
- Molecular mass: Sum of atomic masses in a molecule.
**Possible Exam Questions:**
1. Explain the Law of Conservation of Mass with an example.
2. Define the mole concept and its significance.
3. How is molecular mass calculated?
4. What are the different types of chemical reactions?
5. Discuss Avogadro’s Hypothesis.
What is the chemical formula of sulfuric acid?
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View QuestionWhich gas is commonly used in balloons to make them float?
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View QuestionWhich of the following is a fundamental force in nature?
View QuestionWhich law states that energy cannot be created or destroyed?
View QuestionWhat is the primary function of red blood cells (RBCs) in the human body?
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