Statement 1: No New substance is formed during a physical change. Statement 2: New substances are formed during chemical changes.
Observe the following statements and choose the correct option.
Statement 1: Bases are sour in taste.
Statement 2: All bases are alkalis. (A) Both the statements are true. (B) Only statement 1 is true. (C) Both the statements are false. (D) Only statement 2 is true.
Consider the following statements.Statement 1: The change in which one or more substances lose their identity and form one or more new substances are known as chemical changes. Statement 2: The process of rolling dough is an example of physical change.