Question

The value of x in the following chemical reaction is
\(C_3H_8 + xO_2 \rightarrow YCO_2 + zH_2O\)

• A. 4
• B. 3
• C. 6
• D. 5

Answer 1

The Correct Option is D

To determine the value of \( x \), we need to balance the given chemical reaction: Unbalanced equation: C₃H₈ + O₂ → CO₂ + H₂O
Step 1: Balance carbon (C) atoms There are 3 carbon atoms in C₃H₈, so we need 3 CO₂ molecules: C₃H₈ + O₂ → 3CO₂ + H₂O
Step 2: Balance hydrogen (H) atoms There are 8 hydrogen atoms in C₃H₈, so we need 4 H₂O molecules: C₃H₈ + O₂ → 3CO₂ + 4H₂O
Step 3: Balance oxygen (O) atoms On the right side, total oxygen atoms = 3 × 2 (from CO₂) + 4 × 1 (from H₂O) = 6 + 4 = 10 So, we need 5 O₂ molecules on the left side to get 10 oxygen atoms: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

The correct option is (D): \(5\)