2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-49

  • question_answer
    In a CCP lattice of X and Y, X atoms are present at the comers while Y atoms are at face centres. Then the formula of the compound would be if one of the X atoms from a comer is replaced by Z atoms (also monovalent)?

    A) \[{{X}_{7}}{{Y}_{24}}{{Z}_{2}}\]                 

    B) \[{{X}_{7}}{{Y}_{24}}Z\]

    C) \[{{X}_{24}}{{Y}_{7}}Z\]                   

    D) \[Z{{Y}_{24}}Z\]

    Correct Answer: B

    Solution :

    \[\,X\,\,\,\,:\,\,\,\,\,7\times \frac{1}{8}\] \[\,Y\,\,\,\,:\,\,\,\,\,\,6\times \frac{1}{2}\] \[\,Z\,\,\,\,:\,\,\,\,\,\,1\times \frac{1}{8}\] X      Y      Z \[\frac{7}{8}\]  : 3    :  \[\frac{1}{8}\]


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