A doublet at 1.23 ppm (6H), a Singlet at 2.10 (3H, and a Septet at 4.98 ppm (1H) (а) (b) (c) HO H. (d) (e)

Q: Naturally occurring carotene primarily exists in two different forms, called a-carotene and…

A: Naturally occurring carotene primarily exists in two different forms, called α-carotene and…

Q: CH3 Buli Br Compound C C13H160 St CH3 Propose a structure for compound C and the product C13H160.

A: organic sulfur in presence of strong base forms a sufur ylide which on treatment with the carbonyl…

Q: When an extract of parsley seed is saponified and acidified, one of the fatty acids isolated is…

A: SOLUTION: Step 1: Petro selenic acid is a fatty acid that occurs naturally in several animal and…

Q: The IR spectrum of a compound with molecular formula C 6H 10 is shown below. Suggest a possible…

A: To solve this type of question we must know some characteristic peaks .

Q: A 0.150-g sample of a pure compound subjected to catalytic hydrogenation takes up 25.0 mL of H2 at…

A: Conversion of °C into K: 0°C=273.15 K25°C=25+273.15=298.15 K

Q: Drawing on what you know about the stereochemistry of alkene addition reactions, a. write the…

A: (a)

Q: Q5.) Two isomeric aromatic compounds X and Y have the following percentage composition by lmass! C =…

A:

Q: Birch reduction of 2-methoxynaphthalene gave a mixture of two isomeric compounds, each having the…

A: The structures of the two isomeric compounds obtained by birch reduction of 2-methoxynaphthalene has…

Q: The C=C double bond for a trans-cyclooctene is relatively short 1.33 A vs. 1.347 A for…

A: Double Bond of cyclic systems is generally shorter than the ordinary double bond.

Q: Iodide ion reacts with chloromethane to displace chlorideion in a common organic substitution…

A: The given organic substitution reaction is:

Q: Give the balanced chemical equation and show a detailed arrow-pushing mechanism for the reaction of…

A: We have to give the balanced chemical equation and show a detailed arrow-pushing mechanism for the…

Q: C6H5MgBr + (excess) H3CO OCH 3 H₂O est mỌH OH for H5C6 of C6H5 -C6H5

A: R-MgBr is Grignard reagent. It helps to add alkyl group in a molecule.

Q: When an extract of parsley seed is saponified and acidified, one of the fatty acids isolated is…

A: Petroselenic acid is the common name for cis-6- octadecenoic acid.

Q: 3c. Give the structures of vinyl chloride and ethyl methacrylate and indicate precisely the repeat…

A: Polymer is formed from monomeric units. It can occurs through addition pathway or, condensation…

Q: Give Hückel's Rule, and use it to state which of the following molecules would be aromatic, if they…

A:

Q: 4. Can you predict the melting points of naphthalene and 1-naphthol? Structures provided if noed be…

A: The structure of Naphthalene is

Q: Using the bond energies in the table below, estimate the enthalpy change in kJ/mol corresponding to…

A:

Q: The German chemist Wilhelm Kӧrner (1839-1925) observed in 1974 that each of the three isomers of…

A: The three isomers of dibromobenzene can be drawn as follows-

Q: A compound C4H11N is known from its reactivity andspectroscopic properties to have no hydrogen…

A: Structural formula: The chemical formula in which the bonds between them and all the atoms of the…

Q: An unknown hydrocarbon A with the formula C 6H 12 reacts with 1 molar equivalent of H 2 over…

A: H2/of hydrogenate alkene into alkane. OsO4 adds two hydroxy group on the double bond via syn…

Q: Calculate the index of hydrogen deficiency for 1-hexene, C6H12, and account for this deficiency by…

A: Formula to calculate the index of hydrogen deficiency (also known as the degree of unsaturation):…

Q: 5. Hydrocarbon with 8 carbons and triple bonds in the 4 and 5* bands.

A: Given,

Q: CH3 +

A:

Q: Deduce the structure of compound A C9H1002 , Amax= 253 cm-1 , IR bands,3035, 2960, 2870, 1680, 1610,…

A:

Q: Pentaborane BgHgls) burns vigorously in O2 to give B203s) and H2O0. Calculate AHren for the…

A: Moles of B5H9 = 5 mole

Q: The dipole moments of furan and tetrahydrofuran are in the same direction. One compound has a dipole…

A: Concept Introduction: Resonance hybrids of aromatic heterocyclic compounds play an important role…

Q: Calculate the index of hydrogen deficiency of cyclohexene, C6H10, and account for this deficiency by…

A: Multiple and rings reduces the hydrogen count by 2 and it is called degree of unsaturation or index…

Q: Write structural formulas for toluene (C6H5CH3) and for benzoic acid (C6H5CO2H) (a) as resonance…

A:

Q: Which of the following statements are TRUE regarding the synthesis of the thermochromic material? 1.…

A: Thermochromic materials are those which change colour with the change in temperature.

Q: What is the saturation pressure of benzene at 700°C?

A:

Q: Primary halogenoalkanes undergo hydrolysis by SN2 mechanism. State the meaning of S, N and 2 in…

A: SN2 mechanism stands for Substitution Nucleophilic Bimolecular (or Bimolecular Nucleophilic…

Q: Why does a [2+2] cycloaddition reaction require a thermal condition to be met for initiation?

A: The reason is as follows:

Q: Predict theλmax of the following compound:

A: It is given a molecule hex-1-en-3-one and its λmax value needs to be determined using UV-visible…

Q: Provide the correct structure of a compound that gave the data below MS: M m/2 144.04 relative…

A:

Q: Which set of IR bands (in cm-1) would you expect to see for the following compound?

A: The correct answer about IR stretching frequencies is given below

Q: Next, the infrared spectra of some polymeric materials are presented. Determine a structure for each…

A:

Q: Propose structures that are consistent with the provided data *(s = singlet, d = doublet, t =…

A: Double bond equivalent:The number of double bond and ring present in the unknown compound is…

Q: Which of the following compounds would you expect to show ultraviolet absorptions in the 200 to 400…

A: a) Due to lack of conjugation, we need to talk only simple alkene. For simple alkene its value…

Q: A compound with the formula C5H6 takes up 2 moles of H2 on catalytic hydrogenation. Give one…

A: Catalytic hydrogenation is the addition of H-atoms to the C=C site of the alkene to convert it to…

Q: A compound of formula C6H10 takes up 1 mole of H2 on reduction. Give one possible structure that…

A: Reduction using H2 means the reaction is hydrogenation. Hydrogenation reaction indicates the…

Q: use as a food coloring. In plants, it is almost always present in combination with chlorophyll to…

A: Beta-carotene is the most common form of carotene in plants. Beta-carotene is an organic, strongly…

Q: Molecular formula C6H3O2 is confirmed for a molecule that gives a singlet at for a molecule that…

A:

Q: 258, 217, 175 nm are Amax for the observed to n* transition in UV-Vis. Choose from the following…

A:

Q: An unknown hydrocarbon Q has a formula C6H12. Q Reacts with osmium tetroxide to give a diol R. When…

A: The molecular formula of compound Q is C6H12.

Q: the compound B C23H46,a sex attractant of the common housefly,gave two products Ch3(cH2)12COOH and…

A: The formula is C23H46 of the compound.

Q: Which of the following in each pair is likely to be moresoluble in hexane, C6H14: (a) CCl4 or CaCl2,…

A: Since hexane is a non polar molecule  hence the molecule which will have less polarity will be more…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.