Question Text
Question 4 :
A fuel will have a large fuel value if one gram of it on burning gives more of:
Question 8 :
How carbon dioxide is stored in the house to extinguish fire?
Question 12 :
What is the value of $\Delta n_g$ if we consider the combustion of 1 mol of liquid ethanol if reactants and produces are at 298 K:-
Question 13 :
Nitrogen is a component of air that does not support combustion.<br/>
Question 14 :
_____ is any material that can be made to react so that it releases chemical or nuclear energy as heat.
Question 17 :
Quality that is not suitable for a fuel is ________ .
Question 21 :
Candle is burning in the can. After sometimes, the candle is covered with glass. The flame of the candle:
Question 25 :
Digestion of food in our body is an example of ______ reaction.
Question 27 :
Select the correct answer for the statement given below:The product formed when carbon burns in oxygen of the air is:
Question 35 :
When fuel is added to the exhaust (burnt) gases in a jet engine combustion takes place. Some facts are mentioned here about this combustion. Pick the false one?
Question 46 :
When methane is burnt in an excess of air, the products of combustion are ?<br/>
Question 47 :
<ol style="display: inline !important;"><li style="display: inline !important;">What is geothermal energy ?</li></ol>
Question 50 :
Why the innermost zone of candle flame is the least hot?<br/>