when Vedhika washed a stain of vegetable curry on her suit with a cloth washing bar then it turns brownish- red , then it shows that the:
(A) Stain was of turmeric and the cloth washing bar was basic.
(B) Stain was of turmeric and the cloth washing bar was acidic
(C) Stain was of ice- cream and the cloth washing bar was acidic
(D) Stain was of yellow paint and the cloth washing bar was acidic.
(E) None of these
Plzzzzzzz answer fast
Answers
Answer:
(A) Stain was of turmeric and the cloth washing bar was basic.
Explanation:
(A) Stain changed into of turmeric and the material washing bar changed into simple.The stain of curry on a white material turns reddish brown whilst cleaning soap is rubbed on it due to the fact curry carries turmeric that is a indicator and cleaning soap is simple in nature.
When the white material is washed in water then it turns yellow due to the fact water is impartial and the curry carries turmeric that is a indicator. The copper vessels are tarnished because of the formation of copper oxide because of oxidation of the metal.
Copper oxide is simple in nature.
The lemon or tamarind juice carries citric or tartaric acid which reacts with the simple oxide and the neutralization response takes place. Due to neutralization, the vessels are cleaned.
#SPJ3