- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Explain why, when a burning candle is covered with an inverted gas jar, the candle gets extinguished after sometime.
When a burning candle is covered with an inverted gas jar, the oxygen supply gets cut off. Oxygen is necessary for combustion to take place. It is a supporter of combustion. Hence the candle gets extinguished after sometime.
- Related Articles
- Look at figure 6.1 which shows three situations(a) a burning candle(b) an extinguished candle(c) melting wax."
- Why the flame of burning LPG gas is blue in colour, and the flame of a burning candle is orange and yellow?
- On placing an inverted tumbler over a burning candle, the flame extinguishes after some time. This is because of non-availability ofoxygenwater vapourscarbon dioxidewax
- With the help of an experiment show that oxygen is necessary for burning of a candle.
- With the help of an experiment, show that oxygen is necessary for burning of the candle.
- When a gas jar containing air is inverted over a gas jar containing bromine vapour, the red-brown bromine vapour diffuses into air. Explain how bromine vapour diffuse into air.
- Two glass jars A and B are filled with carbon dioxide and oxygen gases respectively. In each jar, a lighted candle is placed simultaneously. In which jar, will the candle remain lighted for a longer time and why?
- A person sleeping in a closed room with burning coal, feels suffocated after sometime. Why?
- Why is a candle made of wax?
- With the help of experiment, show that oxygen is necessary for the burning of the candle.
- Explain three zones of a candle flame.
- Is melting of a candle, a physical change or a chemical change or both. Explain why?
- Why do we feel more heat when we keep one hand above the candle flame than keeping on the side of candle flame?
- A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of:(a) chemotropism (b) hydrotropism (c) phototropism (d) geotropism
- Why do we feel more heat when we keep our hand above the candle flame than keeping on the side of the candle flame?

Advertisements