MCQ
Combustion is :
- ✓Exothermic reaction
- BEndothermic reaction
- CAddition reaction
- DNone of these
✓
Answer
Correct option: A.
Exothermic reaction
Combustion is an oxidation reaction and during this reaction, heat is produced.
In this type of reaction, bonds are broken first and then new bonds may be created results in new material formation.
So, it is always an exothermic reaction.
In this type of reaction, bonds are broken first and then new bonds may be created results in new material formation.
So, it is always an exothermic reaction.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$(Si_2O_5)_n^{2n-}$ anion is obtained when
→The correct order of increasing $s-$ character (in percentage) in the hybrid orbitals of following molecule/ion is
→$(I)\, CO_3^{-2}$ $(II)\,XeF_4$
$ (III)\,I_3^- $ $(IV)\,NCl_3$
$(V)\,BeCl_2$
If $P$ to $T$ are second period $p-$ block elements then which of the following graph show correct relation between valence electrons in $P_2$ to $T_2$ (corresponding molecules) and their bond order is
→Nitrogen gas is absorbed by
$1-$butyne reacts with cold alkaline $KMn{O_4}$ to produce
→Identify correct stability order of resonating structures ?
Which of the following compounds we use in our laboratory as a standard solution $($titrant$) \ ?$
→The mass of $N_2F_4$ produced by the reaction of $2.0\,\,mole$ of $NH_3$ and $8.0\,\, mole$ of $F_2$ is $0.5\,\,mole.$ What is the per cent yield ?
→$2NH_3 + 5F_2\,\,\to \,\, N_2F_4 + 6HF$
Which of the following is most acidic
A given mass of gas expands reversibly from the state $A$ to the state $B$ by three paths $1, 2$ and $3$ as shown in the figure. If $w_1, w_2$ and $w_3$ respectively be the work done by the gas along three paths then
→