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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the chemical symbol for Oxygen?
💡 Hint: Look for the letter that comes first in the name.
Question 2
Easy
What is the atomicity of Nitrogen gas (N₂)?
💡 Hint: Count the number of nitrogen atoms in the molecule.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the chemical symbol 'Na' stand for?
- Sodium
- Potassium
- Calcium
💡 Hint: Remember the first letter and image of the element.
Question 2
True or False: The valency of Oxygen is 1.
- True
- False
💡 Hint: Recall Oxygen's ability to form bonds based on its outer electrons.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If Ammonium has a valency of 1 and Phosphate has a valency of 3, derive the formula for Ammonium Phosphate.
💡 Hint: Use criss-cross to see how they balance.
Question 2
Balance the equation: C₄H₁₀ + O₂ → CO₂ + H₂O.
💡 Hint: Count each atom carefully on both sides.
Challenge and get performance evaluation