Krishalyn04idn
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1. Which of the is a hydrocarbon?
A. CO2
B. OH
C. CH4
D. H2O
2. Which of the following is NOT an alkene?
A. Propene
B. Butane
C. Pentene
D. Ethene​

Sagot :

Dalbalatzov2vtoidn

Answer:

1. C

2. B

Explanation:

1. A hydrocarbon is composed of only two atoms: hydrogen and carbon. Carbon dioxide (CO₂) is composed of carbon and oxygen. Hydroxide (OH⁻) and water (H₂O) are composed of hydrogen and oxygen, In the choices, only methane (CH₄) is a hydrocarbon.

2. A way to find out the type of hydrocarbon is by looking at its suffix.

Alkane - (no. of carbon)-ane

Alkene - (no. of carbon)-ene

Alkyne - (no. of carbon)-yne

In this question, we are finding which is NOT an alkene.

A. Propene  - yes, an alkene

B. Butane  - no, an alkane

C. Pentene  - yes, an alkene

D. Ethene​ - yes, an alkene