Answer
Verified
397.2k+ views
Hint: Some substances can burn in air and some cannot. Substances like wood, petrol, CNG and kerosene can burn easily, while substances like iron nails, stone, glass etc cannot combust when exposed to flame.
Complete answer:
Let us differentiate combustible and non-combustible substances.
Combustion is a high temperature exothermic redox chemical reaction which takes place between a fuel and an oxidant. This oxidant is usually atmospheric oxygen. The reaction produces oxidised, gaseous products in a mixture and is termed as smoke. Combustion is not fully caused by fire. If it is caused by fire, then the flame can be the characteristic indicator for the reaction.
Therefore, the difference between combustible over non combustible is option (b) it can ignite.
Note: We often confuse combustible substances with flammable substances. Flammable substances are substances which are combustible and ignite very easily at ambient temperatures. That is, combustible substances ignite with some effort while flammable substances can catch fire easily on exposure to flame.
Complete answer:
Let us differentiate combustible and non-combustible substances.
Combustible substances | Non-combustible substances |
When a substance can burn in air and produce heat and light is known as a combustible substance. | Certain substances cannot be burnt in the presence of air. Such substances are called non-combustible substances. |
Combustible substances can only burn if there are necessary ingredients such as heat, fuel and air. | Even if a non-combustible substance is exposed to flame, it will not combust. |
Some examples of combustible substances are diesel, petrol and kerosene. | Examples of non-combustible substances are glass, stone, Portland cement concrete etc. |
Combustion is a high temperature exothermic redox chemical reaction which takes place between a fuel and an oxidant. This oxidant is usually atmospheric oxygen. The reaction produces oxidised, gaseous products in a mixture and is termed as smoke. Combustion is not fully caused by fire. If it is caused by fire, then the flame can be the characteristic indicator for the reaction.
Therefore, the difference between combustible over non combustible is option (b) it can ignite.
Note: We often confuse combustible substances with flammable substances. Flammable substances are substances which are combustible and ignite very easily at ambient temperatures. That is, combustible substances ignite with some effort while flammable substances can catch fire easily on exposure to flame.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
Trending doubts
Assertion CNG is a better fuel than petrol Reason It class 11 chemistry CBSE
How does pressure exerted by solid and a fluid differ class 8 physics CBSE
Number of valence electrons in Chlorine ion are a 16 class 11 chemistry CBSE
What are agricultural practices? Define
What does CNG stand for and why is it considered to class 10 chemistry CBSE
The rate of evaporation depends on a Surface area b class 9 chemistry CBSE
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
State whether the following statement is true or false class 11 physics CBSE
A night bird owl can see very well in the night but class 12 physics CBSE