question_answer

DIRECTIONS: Read the passage given below and answer the questions that follow. Passage - 1 A change in which two or more substances (reactants) combine to produce one or more new substances (products) that has/have different chemical properties than the reactants is called chemical change. In a chemical change new products are formed. The characteristics of a chemical change are following: 1. Heat, light or any other radiation (ultraviolet) may be given off or absorbed. 2. Sound may be produced. 3. A change in smell may take place or a new smell may be given off. 4. A colour change may take place. 5. A gas may be formed. Change in which only physical properties of any substances get changed and no new substance is formed is called a physical change. Such as shape, size, colour and state, is known as physical change. A physical change is mostly reversible and during physical change no new substances are formed. When we add sugar to water, it becomes sweet. Which of the following statements is TRUE regarding this change?

A) It is a chemical change because a new substance is formed

B) It is a chemical change because there is exchange of heat.

C) It is a physical change because the original substance can be recovered.

D) It is a chemical change because there is only change in colour.