Choose the word which is different from the rest.

Swan is the only water bird in the group.

All except Park are halting places of various transport means.

All except Chalk are obtained from crops.

All except Potassium are metals used in semiconductor devices.

All except Oil are products obtained from milk.

Orange is the only citrus fruit in the group.

All except Hammer are sharp-edged and have a cutting action.

All except Mathura are cities situated on the banks of Ganga river.

All except Scallop live in shells.

All except Quay are parts Of a ship.