Question 11 MarkFreezing water into ice is a chemical change.AnswerFalse, it is a physical changeView full question & answer→
Question 41 MarkSetting of curd is a physical change.AnswerFalse, it is a chemical change.View full question & answer→
Question 51 MarkBreaking down of larger food particles into smaller particles is a chemical change.AnswerFalse, it is a chemical change.View full question & answer→
Question 61 MarkChanges in which new substances are formed are called physical changes.AnswerFalse, they are called chemical change.View full question & answer→
Question 81 MarkMelting of wax is a chemical change.AnswerFalse, it is a physical change.View full question & answer→
Question 101 MarkCutting a log of wood into pieces is a chemical change.AnswerFalse, it is a physical change.View full question & answer→
Question 111 MarkFormation of manure from leaves is a physical change.AnswerFalse, it is a chemical change.View full question & answer→
Question 121 MarkIron pipes coated with zinc do not get rusted easily.AnswerTrueView full question & answer→
Question 131 MarkIron and rust are the same substance.AnswerFalse, Rust is oxide of iron.View full question & answer→