Solved papers for JEE Main & Advanced JEE Main Paper (Held On 10 April 2015)

done JEE Main Paper (Held On 10 April 2015) Total Questions - 2

• question_answer1) If the principal quantum number n = 6, the correct sequence of filling of electrons will be: JEE Main Online Paper (Held On 10 April 2015)
  A)
  \[ns\to np\to (n-1)d\to (n-2)f\]
  done clear
  B)
  \[ns\to (n-1)d\to (n-2)f\to np\]
  done clear
  C)
  \[ns\to (n-2)f\to (n-1)d\to np\]
  done clear
  D)
  \[ns\to (n-2)f\to np\to (n-1)d\]
  done clear
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• question_answer2) The heat of atomization of methane and ethane are 360 kJ/mol and 620 kJ/mol, respectively. The longest wavelength of light capable of breaking the C - C bond is (Avogadro number \[=6.02\times {{10}^{23}},h=6.62\times {{10}^{-34}}Js\]) JEE Main Online Paper (Held On 10 April 2015)
  A)
  \[1.49\times {{10}^{3}}nm\]                       
  done clear
  B)
  \[2.48\times {{10}^{4}}nm\]
  done clear
  C)
  \[2.48\times {{10}^{3}}nm\]                       
  done clear
  D)
  \[1.49\times {{10}^{4}}nm\]
  done clear
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