Mark 'T' if the statement is true and 'F' if it is false:
Sodium hydroxide turns blue litmus red. (T/F)

Answer

To determine whether the statement "Sodium hydroxide turns blue litmus red" is true or false, we can follow these steps:

### Step 1: Understand the properties of litmus paper
Litmus paper is a type of pH indicator used to test whether a solution is acidic or basic.
- Blue litmus paper turns red in acidic solutions.
- Red litmus paper turns blue in basic solutions.

### Step 2: Identify the nature of sodium hydroxide
Sodium hydroxide (NaOH) is a strong base.
- Since it is a base, it will not turn blue litmus paper red.

### Step 3: Analyze the statement
The statement claims that sodium hydroxide turns blue litmus red.
- Since sodium hydroxide is a base, it does not change blue litmus paper to red. Instead, it would keep blue litmus blue or turn red litmus blue.

### Conclusion
Therefore, the statement "Sodium hydroxide turns blue litmus red" is **False (F)**.

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