title: Creating JSON shows error Invalid characters found
body: <p>Hi am trying to create a JSON Object but it shows error invalid characters found this is my JSON.</p>
  
  <pre><code>{
      "title":"Biology",
      "content":"Egg period: 4 -6 days \n
             Eggs laid in cracks and crevices of the loose bark on the trunk \n
              Eggs: ovoid or elliptical and dirty white in colour \n
              Adult :Reddish brown in colour",
      "isSubtitle":"N"
    } 
  </code></pre>
  
  <p>Please help to fix this and explain the cases of invalid characters in making JSON will be helpful.</p>