Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the__________________?
Correct answer: C. Osmotic pressure of the soil water becomes higher than that of the plant sap
- A. Osmotic pressure of the soil water becomes less than that of the plant sap
- B. Soil becomes too alkaline
- C. Osmotic pressure of the soil water becomes higher than that of the plant sap
- D. Soil becomes too acidic
Explanation
Fertiliser salts raise the soil-solution concentration, so its osmotic pressure becomes higher than that of the plant sap. Water then moves out of the roots by osmosis, causing wilting and root shrivelling.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
The essential ingredient of all the synthesis gas is___________________?
CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in _________________?
P2O5 percentage in the phosphoric acid produced by wet process is about_________________?
During conversion of ammonium carbamate into urea, presence of large excess of water______________?
Coal based fertiliser plants at Ramagundam (Andhra Pradesh) and Talcher (Orissa) ?
Temperature and pressure in urea autoclave is_________________?