is this correct Name: Date: 1. Which types of compounds are saturated hydrocarbo

Question

is this correct

Name: Date: 1. Which types of compounds are saturated hydrocarbons? A) Alkenes B) Aromatic hydrocarbons D) E) Alkanes Alkynes All of the hydrocarbons above are unsaturated hydrocarbons. 2. Which is the molecular formula of an alkyne? A) CioHis B) CoHis C) CsHis D) CinH20 3. What is the IUPAC name for the compound CH:CH CHCHCHs? A) Pentene B) 2,3-Pentene C) 3-Pentene D) 2-Pentene 4. Which fatty acid has the highest melting point? A) CHs(CH2)COOH B) Chh(CH2 )2CH-CH(CH2)8COOF? C) CHs(CH2) CH CH(CH2)2CH CH(CH2) COOH D) CH:(CH2) COOH 5. What is the product of the reaction 2-pentene +H A) Pentane 0 2-Pentane C) Ethane + Propane D) 2-Pentyne

Explanation / Answer

1) Option C is correct

2) Option A is correct

Explanation: The formula of alkyne is CnH2n-2

C10H2(10)-2 = C10H18

3) The IUPAC name is 2-pentene

Explanation: The number of carbon atoms in the longest carbon chain are 5 so the rootword is pent-. A double bond is located at 2nd position so the name is 2-pentene

4) option C is correct

Explanation: Increase in molecular weight increases melting point.

5) option A is correct

Explanation: H2, Pt reduces alkene to alkane.

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