MCQ
All reactions which have chemical disintegration
  • A
    Is reversible
  • B
    Is reversible and endothermic
  • C
    Is exothermic
  • Is reversible or irreversible and endothermic or exothermic

Answer

Correct option: D.
Is reversible or irreversible and endothermic or exothermic
d
Chemical disintegration is a method by which a compound gets broken down into two or more simpler molecules or atoms.

All reactions which have chemical disintegration are reversible or irreversible and endothermic or exothermic.

Example of irreversible and exothermic reaction which disintegrates into its following constituents:

$2 KClO _3( S ) \stackrel{\Delta}{\rightarrow} 2 KCl ( S )+3 O _2( g )$

Example of reversible reaction:

$N _2( g )+3 H _2( g ) \rightleftharpoons 2 NH _3( g )$

Example of endothermic reaction:

$HCO _3^{-}+ H ^{+} \rightarrow H _2 O + CO _2$

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