Chemistry - Study Mode

[#551] Antacids are found in drugs that give relief to
Correct Answer

(B) Stomach ache

Explanation

Solution: Antacids are found in drugs that give relief to stomach ache.

[#552] The pH of human blood is between
Correct Answer

(B) 7.5-8

Explanation

Solution: The pH of human blood is between 7.5-8.

[#553] Sour taste of lemon is due to the presence of which of the following ?
Correct Answer

(A) Citric acid

Explanation

Solution: Lemon juice is about 5% citric acid, which gives lemons a sour taste and a pH of 2 to 3. Citric acid is found in many fruits but lemon contains large quantity of citric acid. The distinctive sour taste of lemon juice makes it a key ingredient in drinks and foods such as lemonade and lemon meringue pie.

[#554] pH scale ranges from
Correct Answer

(C) 0 – 14

Explanation

Solution: pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral.

[#555] Normal rainwater has a pH level of
Correct Answer

(B) 5.6

Explanation

Solution: Normal rainwater has a pH level of 5.6.