You need to identify the word that doesn't belong in each group. The bolded word doesn't belong.
1. champiñón • cebolla • propina • zanahoria
mushroom-onion-tip-carrot
They are all vegetables except for propina. A propina is a tip in Spanish.
2. camarones • ajo • atún • salmón
shrimp-garlic-tuna-salmon
They are all seafood except for ajo. Ajo is garlic in Spanish.
3. aceite • leche • refresco • agua mineral
oil-milk-soda-mineral water
They are all drinks except for aceite. Aceite is oil in Spanish.
4. jamón • chuleta de cerdo • vinagre • carne de res
ham-pork chop-vinegar-beef
They are all meat except for vinagre. Vinagre is vinegar in Spanish.
5. agua mineral • lechuga • arvejas • frijoles
mineral water-lettuce-peas-beans
They are all vegetables except for agua mineral. Agua mineral is mineral water in Spanish.
6. carne • pescado • mariscos • camarero
meat-fish-seafood-waiter
They are all food except for camarero. Camerero means waiter in Spanish. This could be easily confused with camarones, which means shrimp, but they are different words.
7. pollo • naranja • limón • melocotón
chicken-orange-lemon or lime-peach
They are all fruits except for pollo. Pollo is chicken in Spanish. A peach can also be called a durazno.
8. maíz • queso • tomate • champiñón
corn-cheese-tomato-mushroom
They are all vegetables except for queso. Queso is cheese in Spanish.