Q: 31 (NDA-I/2011)
question_subject:
Science
question_exam:
NDA-I
stats:
0,34,16,9,6,1,34
keywords:
{'sting': [1, 0, 0, 1], 'citric acid': [0, 0, 1, 0], 'acid': [2, 1, 4, 16], 'acetic acid': [0, 0, 0, 1], 'irritation': [0, 0, 0, 1], 'pain': [0, 0, 5, 3]}
The correct answer is option 4 - methanoic acid. A bee sting injects an acid into the skin, which causes pain and irritation. This acid is known as methanoic acid, also commonly known as formic acid. Methanoic acid is naturally found in the venom of bees and other insects.
Option 1 - acetic acid: Acetic acid is the main component of vinegar, and it is not found in bee venom.
Option 2 - sulphuric acid: Sulphuric acid is a strong mineral acid that is not found in bee venom.
Option 3 - citric acid: Citric acid is found in citrus fruits and is commonly used as a food additive. It is not present in bee venom.
In conclusion, methanoic acid is the correct answer as it is the acid that is injected by a bee sting, causing pain and irritation.