CIPS L3M5 Exam - Topic 4 Question 41 Discussion

Actual exam question for CIPS's L3M5 exam

Question #: 41
Topic #: 4

[All L3M5 Questions]

What is the chemical formula for methane?

AN2O

BH2O

CCH4

DCO

Show Suggested Answer

Suggested Answer: C

CH4 - methane - a greenhouse gas.

by Rhea at Oct 31, 2025, 11:41 PM

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Shakira

4 months ago

Are you sure it's CH4? Sounds too simple.

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Malinda

4 months ago

No way it's N2O, that's for laughing!

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Lamar

5 months ago

CH4 is right, but why do people mix it up with CO?

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Dahlia

5 months ago

I thought it was H2O for a second.

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Sommer

5 months ago

It's definitely CH4!

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Miesha

5 months ago

H2O-no, the answer is C) CH4. I'm not going to let this question N2O me off track.

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Katina

5 months ago

N2O way! The answer is clearly C) CH4.

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Temeka

5 months ago

Definitely C) CH4. I'm not a CO2 about it.

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Kristel

6 months ago

I thought it was H2O, but I guess I was just being a little too H2O-ptimistic.

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Mee

6 months ago

C) CH4 is the correct answer. Methane is a simple hydrocarbon with the formula CH4.

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Alishia

6 months ago

I’m pretty sure methane is CH4. I remember it’s the simplest alkane, but I hope I’m not mixing it up with something else!

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Dana

6 months ago

I’m kind of confused. I know methane has carbon and hydrogen, but I can’t remember if it’s CH4 or something else.

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Tonette

6 months ago

I practiced a similar question, and I believe methane is definitely CH4. The others don’t match the structure.

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Dorian

6 months ago

Methane is a simple hydrocarbon, right?

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Lynsey

7 months ago

Yeah, I remember that from class.

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Jacquline

7 months ago

I think it's CH4.

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Solange

7 months ago

Definitely CH4, it's the only one that fits!

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Chana

7 months ago

I think the formula for methane is CH4, but I’m not completely sure. I remember it has carbon and hydrogen.

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Junita

8 months ago

I'm drawing a blank here. Methane, methane... Ah, I think it's got 4 hydrogen atoms. So the answer is C, CH4.

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Chantell

8 months ago

Okay, I remember learning about the structure of methane in class. The formula has 1 carbon atom and 4 hydrogen atoms, so the answer has to be C. CH4.

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Tijuana

8 months ago

Ugh, chemistry questions are the worst. I'm not sure about this one - maybe I'll just guess and hope for the best.

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Carlton

8 months ago

Hmm, let me think about this. Methane is a simple hydrocarbon, so it's probably got hydrogen and carbon in the formula. I'll go with C.

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Cristal

8 months ago

I'm pretty confident I know this one. Methane is CH4, so the answer is C.

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Shad

3 months ago

Methane is CH4, no doubt about it!

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Rachael

3 months ago

I agree, it's C for sure!

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Adelina

3 months ago

CH4 is the right choice!

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Barabara

4 months ago

Definitely C!

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Maryanne

7 months ago

I think it's CH4 too!

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