Write whether the statement is true or false?
Bases change blue litmus to red.
Choose the correct option regarding the statements given below:
Statement 1: Blue litmus changes into red in acidic medium. Statement 2: Red litmus changes into blue in basic medium. Statement 3: Blue litmus changes into red in basic medium. Statement 4: Red litmus changes into blue in acidic medium.
State whether the following statements are true or false. Correct the false statements. [5 MARKS] (a) All substances are either acidic or basic. (b) A compound if acidic will turn all indicators red. (c) Lime water turns red litmus blue. (d) Common salt dissolved in water turns blue litmus red. (e) Phenolphthalein is a natural indicator.