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Shaurya went for a trekking trip. During the trek he accidently placed his hand on the bush. He felt the sting and his hand started itching. The instructor immediately took a leaf of one of the plants, crushed it and rubbed it on the affected area. What could be the nature of the chemical which caused sting and nature of the leaf respectively?  Nature of chemical which cause sting Nature of juice in the leaf

Shaurya went for a trekking trip. During the trek he accidently placed his hand on the bush. He felt the sting and his hand started itching. The instructor immediately took a leaf of one of the plants, crushed it and rubbed it on the affected area. What could be the nature of the chemical which caused sting and nature of the leaf respectively?  Nature of chemical which cause sting Nature of juice in the leaf Correct Answer acidic - basic

Concept:

Acids and bases 

Acids Bases
They are sour in taste.  They are bitter in taste and soupy to touch 
The pH of acids is below 7.  The pH range of bases falls above 7
Acids turn blue litmus red Bases turn red litmus blue. 
Examples - Vinegar, lemon juice  Examples - Soup solution, neem, clove
 

Explanation:

  •  The sting of any insect or plant contains acid. So, to neutralize the effect of the chemical of a sting, that portion of the area is nibbed with moist basic nature plants or substances to relieve the pain of that area.

Thus, from the above explanation, the correct answer is acidic - basic.

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