(b) Explain the following which one exists (i) K19= 1s² 2s² 2p° 3s² 3p° 4s' and 1s? 2s² 2p° 3s² 3p° 3d' (ii) 回回口 (More stable) (Less stable)

Q: • P and R are optically active compounds. Draw the structure of PQ)and R.) (B)H P/CH16 shag Q. C,H18…

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Q: Explain an enantiomeric excess (ee) of 20% (+). 60% (+) and 40% (-) O 60% (-) and 40% (+) 80% (-)…

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Q: g) Identify the hydrogens, of "compound X" as unrelated, identical, enantiotopic, and diastereotopic…

A: Given : Compound X with the molecular formula C4H4O3 We have to find the topocity of hydrogens of…

Q: cofmpounds described below: Please Note: Chemical notation is case sensitive acetic acid, C2H4O2…

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Q: Draw and label a Born-Haber diagram for Re203

A: To draw and label Born Haber diagram of Re2O3

Q: Identify the two geometric isomers of stilbene C6H5CH=CHC6H5 from their λmax values 294 and 278 nm.…

A: Given: stilbene C6H5CH=CHC6H5 To find: two geometric isomers of stilbene from their λmax values 294…

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: Determine the Ksp of the following reactions PbCl2 Pb+2 + 2Cl-

A: The given chemical reaction is, PbCl2→Pb2+aq+2Cl-aq

Q: Given that Kb for (CH3)3N is 6.3 × 10-5 at 25 °C, what is the value of Ka for (CH3)3NH at 25 °C?

A: A conjugate acid-base pair is a pair that differ in a proton. The species that contains one more…

Q: Determine the Ksp of the following reactions. a. NaC2H3O2 2 Na* + C2H3O2 b. HBr 2 H* + Br +2 c.…

A: Since we only answer up to three sub-parts, we'll answer the first three. Please resubmit the…

Q: Draw the structure of the important peaks in the mass spectrum of C9H8O (unsaturation = 6) Major…

A: Mass spectrometry is one of the best techniques for analyzing the structure of a molecule and…

Q: Vhich amomg the fragments below will be dectected by mass Spectrophotometer? i. [CH3CH3]* ii. CH3CH3…

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Q: (-)-Ipc2BOTf i-Pr2NEt H. ЗА CH2CI2, -20 oC TBSOTF 2,6-lutidine 4B 5C CH2CI2, -78 °C

A: The formation of Z and E-enolates in asymmetric aldol synthesis depends on the various factors…

Q: Which of the following represents the correct Cahn-Ingold-Prelog priority ranking of C5H11…

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Q: 2. Explain the IR frequencies of each compounds. Free CO Vco = 2154 cm ¹ Ni(CO4) Vco = 2057 cm ¹¹…

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Q: Which of the following represents the correct Cahn-Ingold-Prelog priority ranking of C5H11…

A: Choose the priority order from lowest to highest ?

Q: Calculate the degree of unsaturation (DU) for a molecule with the formula of CH, F. 11

A: Given molecule is C5H11F  Degree of unsaturation means Number of double bonds and rings.

Q: Does the exclusion rule apply to C2H4?

A: The rule of mutual exclusion in molecular spectroscopy relates the observation of molecular…

Q: Determine the Ksp of the following reactions. a. NaC2H3O2 Na* + C2H3O2 b. HBr 2 H* + Br c. Zn(OH)2 2…

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Q: Which of the following has a index of hydrogen deficiency (= also called degree of unsaturation) of…

A: Index of hydrogen deficiency or degree of unsaturation determines the number of hydrogen pairs…

Q: How can we decide whether an observed rotation of a solution of an optically active compound is…

A: The substances that rotate the plane of polarized light towards left are said to be laevorotatory…

Q: Which of the following molecules have a Hydrogen Deficiency Index (HDI, also known as degrees of…

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Q: Select which molecule(s) is chiral from the selection below.

A: Optical activity : Rotation of plane polarised light (PPL) is called optical activity  Chirality…

Q: draw structure based on their molecular spectroscopy  C2H6O with one singlet  C4H8O2 ; two…

A: Given information's, C2H6O; one singlet C4H8O2; two singlets, two triplets

Q: (b) For the step in which 4 is transformed into 5, identify the nucleo- philic center and the…

A: Answer (b): Oxygen of carbonyl (C=O) is electronegative atom, it will pull the electron from…

Q: Designate the CIP priority order of the following C5H1- groups. (Lowest < Highest priority order) 1.…

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Q: Enantiomers can be distinguished using mass spectroscopy because they have different fragmentation…

A: Mass spectrometry uses ionisation method to form fragments of a compound and then give peaks…

Q: Which of the following represents the correct Cahn-Ingold-Prelog priority ranking of C5H11…

A: CIP rules considers the atomic numbers of the linked atoms. Higher the atomic number, higher the…

Q: What is the check digit for the Flamin’ Hot Cheetos with the following UPC: 0 28400 58989

A: A check digit is a form of redundancy check used for error detection on identification numbers,…

Q: 2. Determine the Index of Hydrogen Deficiency of the following compounds: a. C8H7NO b. C4H4BrNO2

A: Formula for Index of hydrogen deficiency (IHD) = 0.5 x ( 2C + 2 + N -H -X) a. C8H7NO  IHD = 0.5 x (…

Q: Can you give an example of homotopic, heterotopic, enantiotopic, and diastereotopic for compounds?

A: Topicity is the stereochemical relationship between substituents and the structure to which they are…

Q: Calculate the AH of reaction for: C3H8 (@) + 502 (0) The values of AHO are as follows: C3H8 (@) 3CO2…

A: The enthalpy of a reaction can be obtained by the difference between enthalpy of product and…

Q: Which of the following groups has the highest priority in the Cahn-Ingold-Prelog sequence rules?X a.…

A: CPI rules tell us about the configuration of the two different enantiomers. R and S configuration of…

Q: Which of the following is most correct? (a) HETCOR detects 1BC or X nuclei and provides one bond…

A: HETCOR is abbreviated as Heteronuclear correlation 2-D NMR spectroscopy. It tells about the spin…

Q: Arrange the following compounds according to decreasing Amax for it to * transition observed in…

A: Order is-  3&gt;2&gt;1&gt;4 Hence, answer is- option C.

Q: Calculate the index of hydrogen deficiency of this compound  Q.)Pyridine, C5H5N

A:

Q: [CoCl4]2- 15300 600 400- 200 5800 25 000 20 000 15 000 10 000 5 000 Frequency (cm-1) - Answer the…

A: Concept is based on Orgel diagram:

Q: Which one of the following groups has the highest rank when precedence is assigned according to the…

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Q: Os04 (catalytic) NMO

A: Osmium tetraoxide (OsO4) is an oxidising agent mainly used for the oxidation of the double bond into…

Q: ΔΕ Which isotopologue has the smallest spacings, v = in rotational states? h Assume that the…

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Q: Explain about Sigmatropic Rearrangements ?

A: Explain about sigmatropic rearrangements.

Q: Which method-Grignard carboxylation or nitrile hydrolysis-would you use for each of the following…

A: Since you have asked a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A diene denophik redrew Ph. Ph CN 8. 汁 4 nw Stereocenters -What 6teroomes (6) will we get ? Exphin…

A: It is given a Diels Alder Reaction and the product is formed And the stereoisomers of the product…

Q: The degree of unsaturation, or index of hydrogen deficiency, is the number of pi bönds plus Specify…

A: Degree of unsaturation = 2C + 2 + N -X - H2   Where C is carbon N is nitrogen, X is halogen, H is…

Q: Cis - SCI,F, Trans - SCI,F, Fac - [RhCI,(pyr),] Mer - [RhCI,(pyr),] Fac - [Co(NH,),(H,0),P* Mer -…

A: All the given compounds are coordination compounds and the suffix represents the type of isomerism…

Q: (c) How does ring stain affect the stretching frequency of exocyclic C =C?

A: Stretching frequency of a bond is directly propertional to the bond strength and inversely…

Q: कना १०मaडडापल श्ुल्कांवेर ( EcN ) vrल्वलङ्ड ज्क वतंवेe , व वटववाय P० 3cnu&4& भp8, सुdसमा पूुकलांवर…

A: Amount of KCN= 0.410 gram  KCN(aq)+HCL(aq) -&gt;HCN(g) + KCl(aq)

Q: Determine whether the circled hydrogens are enantiotopic, diastereotopic, heterotopic, or homotopic.

A: To check the type of Hydrogens , we would substitute each hydrogen one by one with other element (…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.