A) 27
B) 21
C) 5
D) 8
Correct Answer: B
Solution :
Total number of atoms in\[CuS{{O}_{4}}.5{{H}_{2}}O\]are \[1+1+4+5(2+1)=6+5\times 3\] \[=21\] \[\therefore \]\[CuS{{O}_{4}}.5{{H}_{2}}O\]has 21 atoms.You need to login to perform this action.
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