Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Chapter: Combustion and Flame, Exercise 3: EXERCISES

Author:Dr. J M D'Souza & Dr. Kirti J D'Souza

Dr. J M D'Souza Science Solutions for Exercise - Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Chapter: Combustion and Flame, Exercise 3: EXERCISES

Attempt the free practice questions on Chapter 6: Combustion and Flame, Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. EUREKA PLUS Revised Bringing Science to Life solutions are prepared by Experienced Embibe Experts.

Questions from Dr. J M D'Souza and Dr. Kirti J D'Souza Solutions for Chapter: Combustion and Flame, Exercise 3: EXERCISES with Hints & Solutions

MEDIUM
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 7

The SI unit for measuring the heat is:

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 8

For a fuel to burn, it must be heated to

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 1

Coal, wood and paper are combustable substances.

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 2

Every combustible substance has its ignition temperature.

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 3

The temperature at which a substance stops burning is its ignition temperature.

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 4

A fuel with high calorific value is a better fuel.

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 5

The blue zone of a candle flame is non-luminous and does not leave any soot.

EASY
8th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Combustion and Flame>EXERCISES>Q 6

The inner dark zone of the candle has lowest temperature.