Chemistry - Study Mode

[#1001] The sewage obtained from water closets and urinals is known as
Correct Answer

(A) Sanitary waste

Explanation

Solution: The sewage obtained from water closets and urinals in known as Sanitary waste.

[#1002] Which one amongst the following is not a Green House gas?
Correct Answer

(A) Nitrogen

Explanation

Solution: Nitrogen is not a Green House gas.

[#1003] Which of the following is not a greenhouse gas ?
Correct Answer

(A) Hydrogen

Explanation

Solution: Hydrogen is not a greenhouse gas.

[#1004] Which is abundant in Gobar gas?
Correct Answer

(B) Methane

Explanation

Solution: Biogas differs from natural gas in that it is a renewable energy source produced biologically through anaerobic digestion rather than a fossil fuel produced by geological processes. Biogas is primarily composed of methane gas, carbon dioxide, and trace amounts of nitrogen, hydrogen, and carbon monoxide.

[#1005] Concentration of a material which is lethal to 50% animal is called
Correct Answer

(A) LD 50

Explanation

Solution: LD stands for "Lethal Dose". LD50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals. The LD50 is one way to measure the short-term poisoning potential (acute toxicity) of a material.