Combustion and Flame [NSO Level 1- Science Olympiad (SOF) Class 8]: Questions 1 - 6 of 85
Choose Programs:
📹 Video Course 2024 (13 Lectures [7 hrs : 26 mins]): Offline Support
Rs. 100.00 -OR-
1 Month Validity (Multiple Devices)
Preview All LecturesDetails
🎓 Study Material (43 Notes): 2024-2025 Syllabus
Rs. 100.00 -OR-
3 Year Validity (Multiple Devices)
Topic-wise Notes & SampleDetails
🎯 1178 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Rs. 450.00 -OR-
3 Year Validity (Multiple Devices)
CoverageDetailsSample Explanation
Help me Choose & Register (Watch Video) Already Subscribed?
Passage
Read the description carefully and answer the questions. Anjali was doing an experiment. She took a dish. Placed two lighted candles in it. One long and the other long. She put some baking soda in the dish and placed it in a bowl. The she poured some vinegar in the dish.
Question 1 (1 of 6 Based on Passage)
Question MCQ▾
What would be her observation?
Choices
Choice (4) | Response | |
---|---|---|
a. | There was no change in the baking soda | |
b. | Fumes came out | |
c. | Bubbles started to come out | |
d. | Baking soda completely dissolved in vinegar |
Question 2 (2 of 6 Based on Passage)
Question MCQ▾
What do you think about the bubbles?
Choices
Choice (4) | Response | |
---|---|---|
a. | It is oxygen gas | |
b. | It is carbon dioxide gas | |
c. | It is heat | |
d. | It is hydrogen gas |
Question 3 (3 of 6 Based on Passage)
Question MCQ▾
Where does the carbon dioxide come from?
Choices
Choice (4) | Response | |
---|---|---|
a. | Baking soda reacts with moisture to release carbon dioxide | |
b. | Atmospheric carbon dioxide dissolved in baking soda | |
c. | Baking soda reacts with oxygen to form carbon dioxide | |
d. | Vinegar reacts with baking soda to form carbon dioxide |
Question 4 (4 of 6 Based on Passage)
Question MCQ▾
The chemical equation for the reaction between baking soda and vinegar is
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 5 (5 of 6 Based on Passage)
Question MCQ▾
Which of the two candles will get extinguished first?
Choices
Choice (4) | Response | |
---|---|---|
a. | Larger one | |
b. | Smaller one | |
c. | Simultaneously | |
d. | All of the above |
Question 6 (6 of 6 Based on Passage)
Question MCQ▾
In the above experiment, the candles get extinguished. What do this indicate?
Choices
Choice (4) | Response | |
---|---|---|
a. | Presence of gas | |
b. | Presence of gas | |
c. | Presence of gas | |
d. | Question does not provide sufficient data or is vague |