JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank The mole concept

  • question_answer
    A sample of phosphorus trichloride \[(PC{{l}_{3}})\] contains 1.4 moles of the substance. How many atoms are there in the sample [Kerala PMT 2004]

    A)                 4             

    B)                 5.6

    C)                 \[8.431\times {{10}^{23}}\]            

    D)                 \[3.372\times {{10}^{24}}\]

    E)                 \[2.409\times {{10}^{24}}\]

    Correct Answer: C

    Solution :

               No. of atoms in one molecule                    = no. of moles \[\times \,6.022\times {{10}^{23}}\]                                 \[=1.4\times 6.022\times {{10}^{23}}=8.432\times {{10}^{23}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner