Acids and Bases

Which one of the following is acidic?

• Lemon juice

• Tomatoes

• Milk

• All of these

When soil is too acidic, plants do not grow well in it. To improve its quality, what must be added to the soil?

• Organic matter

• lime water

• Slaked lime

• Nitric acid

When a man with stomach pain went to the doctor, the physician identified acidity. Which of the following would be the suitable remedy for him?

• Lemonade drink

• Baking soda

• Aerated drink

• Vinegar

Which of the following is a base?

• Curd

• Vinegar

• Amla

• Window cleaner

Which of the following is not the property of acids?

• Sour taste

• Bitter taste

• Corrosive in nature

• pH is below 7

Which of the following is not true about bases?

• pH value is greater than 7

• bitter taste

• slippery to touch

• All bases are soluble in water