Silicon percentage in acid resistant cast iron is about

ANS:A - 4

The correct percentage of silicon in acid-resistant cast iron is approximately 14%. Acid-resistant cast iron, also known as "white iron," typically contains around 14% silicon. This high silicon content enhances the corrosion resistance of the material, making it suitable for applications where it will be exposed to acidic environments or corrosive chemicals. Therefore, the correct option is: 14