A metal.. hydrogen in the activity series gives hydrogen with ............... acid or ............... acid.

Answer

To solve the question regarding which acids a metal above hydrogen in the activity series can react with to produce hydrogen gas, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Activity Series**:
- The activity series is a list of metals arranged in order of decreasing reactivity. Metals that are higher in the series can displace hydrogen from acids.

2. **Identify Metals Above Hydrogen**:
- Metals such as zinc (Zn), magnesium (Mg), and aluminum (Al) are examples of metals that are above hydrogen in the activity series.

3. **Identify the Acids**:
- The question mentions two blanks for acids. The common acids that react with these metals to produce hydrogen gas are:
- Dilute Hydrochloric Acid (HCl)
- Dilute Sulfuric Acid (H2SO4)

4. **Write the Reaction**:
- For example, when zinc reacts with dilute hydrochloric acid, the reaction can be represented as:
\[ \text{Zn} + 2\text{HCl} \rightarrow \text{ZnCl}_2 + \text{H}_2 \]
- Similarly, zinc can also react with dilute sulfuric acid:
\[ \text{Zn} + \text{H}_2\text{SO}_4 \rightarrow \text{ZnSO}_4 + \text{H}_2 \]

5. **Conclusion**:
- Therefore, the blanks in the question can be filled as follows:
- A metal above hydrogen in the activity series gives hydrogen with **dilute hydrochloric acid** or **dilute sulfuric acid**.

### Final Answer:
A metal above hydrogen in the activity series gives hydrogen with **dilute hydrochloric acid** or **dilute sulfuric acid**.