Science · PSLE / Acids, bases and salts Multiple choiceExam revisionStandard 7 · PSLE Why is toothpaste slightly alkaline? Ato neutralise acids made by bacteria on teethBto make teeth acidicCto kill the tongueDto taste nice Check my answer Source: Thuto360 practice Report a problemWhat's wrong?The marked answer is wrongThe question is unclearA spelling or typing mistakeThe picture is wrong or missingSomething elseAnything to addSend More like thisWhich household substance is an acid?Multiple choicePSLEAcids, bases and saltsRed cabbage juice turns pink in a liquid. What is the liquid likely to be?Multiple choicePSLEAcids, bases and salts