Chemistry - Study Mode

[#261] If water smells bad, then that odour can be removed by adding
Correct Answer

(C) Activated carbon

Explanation

Solution: If water smells bad, then that odour can be removed by adding activated carbon.

[#262] Surface water is a better source of drinking water because it is poor in
Correct Answer

(C) Arsenic

Explanation

Solution: Surface water is a better source of drinking water because it is poor in arsenic.

[#263] Which one of the following acids is used in battery ?
Correct Answer

(C) Sulphuric acid

Explanation

Solution: The formation of the lead sulphate products involves sulphuric acid, which is the electrolyte used in these batteries. During battery charge, lead sulphate is converted back to lead and lead dioxide, releasing sulphuric acid into the electrolyte.

[#264] Which of the following is the strongest base in aqueous solution ?
Correct Answer

(A) Diethylamine

Explanation

Solution: Diethylamine is the strongest base in aqueous solution.

[#265] Which of the following acids serves as an electrolyte in a lead storage battery?
Correct Answer

(A) Sulphuric acid

Explanation

Solution: A 38% solution of sulphuric acid is used as an electrolyte in lead-acid battery.