| Consider the following statements regarding nitrate. |
| 1. Excess nitrate in drinking water can cause a disease called Methemoglobinemia. |
| 2. The maximum concentration of nitrate in drinking water as per WHO norms is 45 ppm. |
| Which of the statement(s) given above is/are correct? |
A) Only 1
B) Only 2
C) Both 1 and 2
D) Neither1nor 2
Correct Answer: C
Solution :
[c] Nitrate oxidise the iron atoms in haemoglobin rendering it unable to carry oxygen, this can lead to generalised lack of oxygen in organ tissue and a dangerous condition called Methemoglobinemia (which is called blue baby syndrome in instants). WHO prescribes nitrate content not more than 45 ppm. So, both the statements are correct and option [c] is the answer.
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