Neha Sharma and Akanksha Dudpuri Solutions for Chapter: Combustion and Flame, Exercise 4: EXERCISES

Author:Neha Sharma & Akanksha Dudpuri

Neha Sharma Science Solutions for Exercise - Neha Sharma and Akanksha Dudpuri Solutions for Chapter: Combustion and Flame, Exercise 4: EXERCISES

Attempt the free practice questions on Chapter 5: Combustion and Flame, Exercise 4: EXERCISES with hints and solutions to strengthen your understanding. Start Up Science solutions are prepared by Experienced Embibe Experts.

Questions from Neha Sharma and Akanksha Dudpuri Solutions for Chapter: Combustion and Flame, Exercise 4: EXERCISES with Hints & Solutions

HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 2

How will you differentiate between luminous and non-luminous flame?

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 4

A good fuel burns neither too fast nor too slowly.

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 5

The ignition temperature is the temperature below which a substance does not burn even in the presence of supporter of combustion.

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 1

A good fuel should have

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 2

Which of the following fuel has the highest calorific value?

HARD
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 3

Water is used to extinguish fire because it

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 4

In carbon dioxide-based fire extinguishers, carbon dioxide is present in
 

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 5 - Combustion and Flame>EXERCISES>Q 5

When a wax candle burns, which part of it catches fire?