(a)
Interpretation:
The given statement concerning 2-butene has to be identified as true or false.
Concept Introduction:
Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.
Alkenes and cycloalkenes are hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, alkenes and cycloalkenes do not get solubilized in water. In other words, alkenes and cycloalkenes are insoluble in water.
Regarding density, alkenes and cycloalkenes have density lower than water. When alkenes and cycloalkenes are mixed with water, two layers are formed which is a result of insolubility. Alkenes and cycloalkenes are present on top of water layer which is due to lesser density.
Boiling point of alkenes and cycloalkenes increase with an increase in carbon‑chain length or the ring size. The continuous chain alkenes which contain two to four carbon atoms are gases at room temperature. The continuous chain alkenes that contain five to seventeen carbon atoms and one double bond are liquids at room temperature.
When branching happens in the carbon chain, it lowers the boiling point of alkenes. In simple words, unbranched alkenes have more boiling point than branched alkenes with the same number of carbon atoms.
Cycloalkenes have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Cyclopropene and cyclobutene are relatively unstable compound and gets converted into other hydrocarbons.
(b)
Interpretation:
The given statement concerning 2-butene has to be identified as true or false.
Concept Introduction:
Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.
Alkenes are linear chain unsaturated hydrocarbons and cycloalkenes are cyclic carbon chain unsaturated hydrocarbons. They both occur naturally.
Alkenes and cycloalkenes are hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, alkenes and cycloalkenes do not get solubilized in water. In other words, alkenes and cycloalkenes are insoluble in water.
Regarding density, alkenes and cycloalkenes have density lower than water. When alkenes and cycloalkenes are mixed with water, two layers are formed which is a result of insolubility. Alkenes and cycloalkenes are present on top of water layer which is due to lesser density.
Boiling point of alkenes and cycloalkenes increase with an increase in carbon‑chain length or the ring size. The continuous chain alkenes which contain two to four carbon atoms are gases at room temperature. The continuous chain alkenes that contain five to seventeen carbon atoms and one double bond are liquids at room temperature.
When branching happens in the carbon chain, it lowers the boiling point of alkenes. In simple words, unbranched alkenes have more boiling point than branched alkenes with the same number of carbon atoms.
Cycloalkenes have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Cyclopropene and cyclobutene are relatively unstable compound and gets converted into other hydrocarbons.
(c)
Interpretation:
The given statement concerning 2-butene has to be identified as true or false.
Concept Introduction:
Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.
Alkenes are linear chain unsaturated hydrocarbons and cycloalkenes are cyclic carbon chain unsaturated hydrocarbons. They both occur naturally.
Alkenes and cycloalkenes are hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, alkenes and cycloalkenes do not get solubilized in water. In other words, alkenes and cycloalkenes are insoluble in water.
Regarding density, alkenes and cycloalkenes have density lower than water. When alkenes and cycloalkenes are mixed with water, two layers are formed which is a result of insolubility. Alkenes and cycloalkenes are present on top of water layer which is due to lesser density.
Boiling point of alkenes and cycloalkenes increase with an increase in carbon‑chain length or the ring size. The continuous chain alkenes which contain two to four carbon atoms are gases at room temperature. The continuous chain alkenes that contain five to seventeen carbon atoms and one double bond are liquids at room temperature.
When branching happens in the carbon chain, it lowers the boiling point of alkenes. In simple words, unbranched alkenes have more boiling point than branched alkenes with the same number of carbon atoms.
Cycloalkenes have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Cyclopropene and cyclobutene are relatively unstable compound and gets converted into other hydrocarbons.
(d)
Interpretation:
The given statement concerning 2-butene has to be identified as true or false.
Concept Introduction:
Organic compounds are represented shortly by the molecular formula and structural formula. Each and every compound has its own molecular formula. Compounds can have same molecular formula but not same structural formula.
Alkenes are linear chain unsaturated hydrocarbons and cycloalkenes are cyclic carbon chain unsaturated hydrocarbons. They both occur naturally.
Alkenes and cycloalkenes are hydrocarbons. They are nonpolar molecules. Water is a polar molecule. Therefore, alkenes and cycloalkenes do not get solubilized in water. In other words, alkenes and cycloalkenes are insoluble in water.
Regarding density, alkenes and cycloalkenes have density lower than water. When alkenes and cycloalkenes are mixed with water, two layers are formed which is a result of insolubility. Alkenes and cycloalkenes are present on top of water layer which is due to lesser density.
Boiling point of alkenes and cycloalkenes increase with an increase in carbon‑chain length or the ring size. The continuous chain alkenes which contain two to four carbon atoms are gases at room temperature. The continuous chain alkenes that contain five to seventeen carbon atoms and one double bond are liquids at room temperature.
When branching happens in the carbon chain, it lowers the boiling point of alkenes. In simple words, unbranched alkenes have more boiling point than branched alkenes with the same number of carbon atoms.
Cycloalkenes have more boiling point compared to noncyclic alkenes with the same number of carbon atoms. This is due to the more rigid and more symmetrical structures that occur in cyclic systems. Cyclopropene and cyclobutene are relatively unstable compound and gets converted into other hydrocarbons.
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Chapter 2 Solutions
Organic And Biological Chemistry
- Explain why the representation of a one-dimensional velocity distribution function for a particular gas becomes flatter as the temperature increases.arrow_forwardDraw a Lewis structure for each of the following molecules and assign charges where appropriate. The order in which the atoms are connected is given in parentheses. a. CIFCIF b. BrCNBrCN 0 c. SOCI2 × (CISCIO) SOC₁₂ (CISCI) You can draw both an octet and a valence shell expanded structure. Considering the following structural information, which is the better one: The measured S-OS-O bond length in SOC12SOCl2 is 1.43 Å. For comparison, that in SO2SO2 is 1.43 Å [Exercise 1-9, part (b)], that in CHзSOHCH3 SOH d. CH3NH2CH3NH2 (methanesulfenic acid) is 1.66 A. e. CH3OCH3 CH3 OCH3 NH2 f. N2H2× (HNNH) N2 H2 (HNNH) g. CH2COCH₂ CO h. HN3× (HNNN) HN3 (HNNN) i. N20 × (NNO) N2O (NNO)arrow_forwardbre The reaction sequence shown in Scheme 5 demonstrates the synthesis of a substituted benzene derivative Q. wolsd works 2 NH2 NaNO2, HCI (apexe) 13× (1 HNO3, H2SO4 C6H5CIN2 0°C HOTE CHINO₂ N O *O₂H ( PO Q Я Scheme 5 2 bag abouoqmics to sounde odi WEIC (i) Draw the structure of intermediate O. [2 marks] to noitsmot od: tot meinedogm, noit so oft listsb ni zaupaib bas wa (ii) Draw the mechanism for the transformation of aniline N to intermediate O. Spoilage (b) [6 marks] (iii) Identify the reagent X used to convert compound O to the iodinated compound [tom E P. vueimado oilovonsa ni moitos nolisbnolov ayd toes ai tedw nisiqx (iv) Identify the possible structures of compound Q. [2 marks] [2 marks] [shom 2] (v) bus noires goiribbeolovo xnivollot adj to subora sidab Draw the mechanism for the transformation of intermediate P to compound Q. [5 marks] vi (vi) Account for the regiochemical outcome observed in the reaction forming compound Q. [3 marks]arrow_forward
- Please correct answer and don't used hand raitingarrow_forwardThe vibrational contribution isa) temperature independent for internal energy and heat capacityb) temperature dependent for internal energy and heat capacityc) temperature independent for heat capacityd) temperature independent for internal energyarrow_forwardQuantum mechanics. Explain the basis of approximating the summation to an integral in translational motion.arrow_forward
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