Which of the following is not another representation for 2-methylbutane?<img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q363g1.jpg" alt="" style="vertical-align: 0.0px;" height="110" width="589" />
What is the IUPAC name for the following compound? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q495g1.jpg" alt="" style="vertical-align: 0.0px;" height="89" width="176" />
What is the IUPAC name for the following compound? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q506g1.jpg" alt="" style="vertical-align: 0.0px;" height="93" width="165" />
Rank the following alkanes in order of increasing melting point, putting the alkane with the lowest melting point first. <img src="https://sciemce.com/files/4/ppg__10822192228__f1q510g1.jpg" alt="" style="vertical-align: 0.0px;" height="73" width="402" />
Which of the following are gauche conformers? <img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q394g1.jpg" alt="" style="vertical-align: 0.0px;" height="122" width="493" />
Rank the conformers of butane in order of decreasing stability, putting the most stable first. <img src="https://sciemce.com/files/4/ppg__10822192228__f1q518g1.jpg" alt="" style="vertical-align: 0.0px;" height="125" width="436" />
Which of the following chair conformations represents trans-1,3-dimethylcyclohexane? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q523g1.jpg" alt="" style="vertical-align: 0.0px;" height="90" width="523" />
Which of the following is the most stable conformation of cis-1-ethyl-3-isopropylcyclohexane? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q525g1.jpg" alt="" style="vertical-align: 0.0px;" height="101" width="536" />
Which of the following molecules has a plane of symmetry? <img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q299g1.jpg" alt="" style="vertical-align: 0.0px;" height="63" width="535" />
16. Which of the following molecules are chiral? I. cis-1,3-Dibromocyclohexane II.1-Bromo-1-methylcyclohexane III.trans-1-Bromo-3-methylcyclohexane IV.cis-1-Bromo-3-methylcyclohexane
How many stereogenic centers are present in fructose, a simple sugar? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q422g1.jpg" alt="" style="vertical-align: 0.0px;" height="190" width="117" />
Which of the following structures has a different configuration from the other three? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q441g1.jpg" alt="" style="vertical-align: 0.0px;" height="93" width="532" />
Which of the following structures has a different configuration from the other three? <img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q325g1.jpg" alt="" style="vertical-align: 0.0px;" height="136" width="550" />
Which of the following structures has a different configuration from the other three? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q440g1.jpg" alt="" style="vertical-align: 0.0px;" height="126" width="519" />
A solution containing 0.08 g/mL of a pure R enantiomer in a 1 dm polarimeter rotates plane polarized light by +4°. What is the specific rotation of the S enantiomer?
Which of the following compounds can have a meso stereoisomer? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q457g1.jpg" alt="" style="vertical-align: 0.0px;" height="89" width="445" />
Which reaction has a positive DG°, assuming that entropy changes are negligible compared to enthalpy changes? <img src="https://sciemce.com/files/4/ppg__10822192228__f1q373g1.jpg" alt="" style="vertical-align: 0.0px;" height="156" width="601" />
How many transition states are present in the reaction in the energy diagram? <img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q256g1.jpg" alt="" style="vertical-align: 0.0px;" height="182" width="261" />
Calculate Ea for the conversion of C ® B. <img src="https://sciemce.com/files/4/ppg__tttt0821191047__f1q268g1.jpg" alt="" style="vertical-align: 0.0px;" height="186" width="337" /> Ea (A ® B) = +10 kcalEa (B ® C) = +4 kcalDH (A ® B) = +8 kcalDH (B ® C) = -5 kcal