Sodium bicarbonate has :

Options

A. Ionic bond
B. Covalent bond
C. Hydrogen bond
D. All of these

Answer

To determine the types of bonds present in sodium bicarbonate (NaHCO3), we can break down the solution into the following steps:

### Step 1: Identify the Chemical Formula
The chemical formula for sodium bicarbonate is NaHCO3.

**Hint:** Always start by writing down the chemical formula of the compound you are analyzing.

### Step 2: Analyze the Ionic Bond
In sodium bicarbonate, sodium (Na) exists as a cation (Na⁺) and the bicarbonate ion (HCO3⁻) is an anion. The bond between Na⁺ and HCO3⁻ is an ionic bond.

**Hint:** Look for the presence of cations and anions in the compound to identify ionic bonds.

### Step 3: Analyze the Covalent Bond
Within the bicarbonate ion (HCO3⁻), there are covalent bonds between the carbon (C) atom and the oxygen (O) atoms. Carbon has four valence electrons and forms covalent bonds by sharing electrons with oxygen.

**Hint:** Check the molecular structure of the ions to find covalent bonds, which involve sharing of electrons.

### Step 4: Check for Hydrogen Bonds
Hydrogen bonds can form between molecules. In the case of sodium bicarbonate, if we consider two bicarbonate ions (HCO3⁻), the hydrogen atom (H) from one bicarbonate ion can form a hydrogen bond with the oxygen atom (O) of another bicarbonate ion.

**Hint:** Look for interactions between hydrogen atoms and electronegative atoms (like oxygen) in different molecules to identify hydrogen bonds.

### Step 5: Conclusion
Based on the analysis, sodium bicarbonate (NaHCO3) contains:
1. Ionic bonds (between Na⁺ and HCO3⁻)
2. Covalent bonds (within the HCO3⁻ ion)
3. Hydrogen bonds (between HCO3⁻ ions)

Thus, the answer is that sodium bicarbonate has all three types of bonds: ionic, covalent, and hydrogen bonds.

**Final Answer:** Sodium bicarbonate has ionic, covalent, and hydrogen bonds.

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