Q1: Pick out the wrong statement.

ANS:B - Direct use of liquid ammonia as a fertiliser for a tropical country like India is suitable.

The wrong statement is: Direct use of liquid ammonia as a fertilizer for a tropical country like India is suitable. While liquid ammonia (NH3) is an effective nitrogen fertilizer, direct application of liquid ammonia to soil is not suitable, especially in tropical regions like India. Liquid ammonia is highly alkaline and can cause soil pH to increase significantly, leading to ammonia toxicity and potential harm to plants. Additionally, ammonia volatilization can occur, resulting in loss of nitrogen to the atmosphere. Therefore, it is more common to use urea or other forms of nitrogen fertilizer that are safer and more suitable for application to soil in agricultural practices.