How many type of products are obtained on thermal decomposition of alkaline earth metal nitrates.

Answer

To determine how many types of products are obtained from the thermal decomposition of alkaline earth metal nitrates, we can follow these steps:

### Step 1: Identify the General Formula
The general formula for alkaline earth metal nitrates can be represented as \( M(NO_3)_2 \), where \( M \) is the alkaline earth metal (such as Beryllium, Magnesium, Calcium, Strontium, or Barium).

**Hint:** Remember that alkaline earth metals belong to Group 2 of the periodic table and typically form nitrates with the formula \( M(NO_3)_2 \).

### Step 2: Understand Thermal Decomposition
When alkaline earth metal nitrates are heated, they undergo thermal decomposition. This means they break down into simpler substances.

**Hint:** Thermal decomposition involves breaking down a compound into two or more products, usually requiring heat.

### Step 3: Identify the Products
Upon heating, alkaline earth metal nitrates decompose to form:
1. Metal oxide (\( M_xO_y \))
2. Nitrogen dioxide gas (\( NO_2 \))
3. Oxygen gas (\( O_2 \))

For example, the decomposition of magnesium nitrate can be represented as:
\[ 2Mg(NO_3)_2 \rightarrow 2MgO + 4NO_2 + O_2 \]

**Hint:** Look for the common products formed during the decomposition of metal nitrates, which typically include a metal oxide and gases.

### Step 4: Count the Types of Products
From the decomposition reaction, we can see that there are three distinct types of products:
1. Metal oxide
2. Nitrogen dioxide gas
3. Oxygen gas

**Hint:** When counting products, consider both solid and gaseous products formed during the reaction.

### Conclusion
Thus, the thermal decomposition of alkaline earth metal nitrates yields three types of products: one solid (metal oxide) and two gases (nitrogen dioxide and oxygen).

**Final Answer:** Three types of products are obtained.