  Violation of Mermin inequalities is tested on the 5-qubit IBM quantum
computer. For 3, 4 and 5 parties, quantum states that violate the corresponding
Mermin inequalities are constructed using quantum circuits on superconducting
qubits. Measurements on different basis are included as additional final gates
in the circuits. The experimental results obtained using the quantum computer
show violation of all Mermin inequalitites, with a clear degradation of the
results in the 5 qubit case. Though this quantum computer is not competitive to
test Mermin inequalities as compared to other techniques when applied to few
qubits, it does offer the opportunity to explore multipartite entanglement for
four and five qubits beyond the reach of other alternative technologies.
