`Zn + 2NaOH rarr A + B`

Options

A. `NaH and H_(2)`
B. `Na_(2)Zn and H_(2)`
C. `Na_(2)ZnO_(2)and H_(2)`
D. Reaction arely occurs

Answer

To solve the reaction of zinc with sodium hydroxide, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in the reaction are zinc (Zn) and sodium hydroxide (NaOH).

### Step 2: Understand the Reaction Type
When a metal reacts with a strong base, such as sodium hydroxide, it typically results in the formation of a salt and the liberation of hydrogen gas (H₂).

### Step 3: Write the Reaction
The balanced chemical equation for the reaction of zinc with sodium hydroxide can be written as:
\[ \text{Zn} + 2\text{NaOH} \rightarrow \text{Na}_2\text{ZnO}_2 + \text{H}_2 \]

### Step 4: Identify the Products
From the balanced equation, we can identify the products:
- Product A: Sodium zincate (Na₂ZnO₂)
- Product B: Hydrogen gas (H₂)

### Step 5: Analyze the Options
Now, let's analyze the provided options:
1. Sodium hydrate and hydrogen - Incorrect
2. Sodium zinc and hydrogen - Incorrect
3. Sodium zincate and hydrogen - Correct
4. Reaction rarely occurs - Incorrect

### Conclusion
The correct answer is that the products of the reaction are sodium zincate (A) and hydrogen gas (B). Therefore, the answer is option 3: sodium zincate and hydrogen.

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