Why should pure water or distilled water is to be used for making ice used in the experiment

Why should pure water or distilled water is to be used for making ice

1.	Why should pure water or distilled water is to be used for making ice used in the experiment
Answer» AS THERE ARE NO IMPURITIES IN PURE WATER OR DISTILLED WATER.Explanation:AS IMPURITIES CAN AFFECT THE FREEZING POINT OF A SUBSTANCE .MARK ME THE BRAINLIEST AS IT IS ALL HANDTYPED AND THE EFFORTS SHOULD BE APPRECIATED