Which of the following is most likely going to be a heterogeneous mixture? O 02 and O, O CioHa and H;o O H;S and H>O O Nacl and CH3OH

Q: 1. NaHSO, CH, — С- Н H,0 2. НСНО Evaporate 3. СНО + + NH,OH → +Agl+ NH,NO,

A: Balance Chemical equation means no of atoms should be equaal in both side reactant and product

Q: OHC 1. NH3, HCN 2. НaSO4, H20, heat 3. CН-0, NaCNBHнз, рH 4

A: Ans

Q: Br2 light NaOEt, ethanol CI Br CH3OH OTs KSH HBr

A: Here  we are required to predict the product of the reaction

Q: х. Choose the correct answer: 1) Hз0, 2) heat ?????? OCH3 OH OH B) A) OCH3 OH D) OCH3

A:

Q: Identify the Lewis acid and Lewis base in each reaction:

A: The Lewis acid and Lewis base in each reaction: (a) Fe3++2H2O↔FeOH2++H3O+ (b) H2O+H-↔OH-+H2 (c)…

Q: OEt 1) LIAIH, Et,0 (2) H,Ó НА OEt HOCH,CH,OH H,0 H,0 он OH B

A: We have to protect ketone group by converting it into cyclic acetal so that LiAlH4 can not reduce…

Q: 2 po All the following are characteristic properties of phosphorus. Which one is a chemical…

A: In the above question some properties of phosphorus is given ,some of them are physical or chemical…

Q: Br H. cat. H O,N NH, cat. H

A: The questions deals with the concept of organic reactions. this is the type of nucleophilic addition…

Q: For which of the following substances does AH°F = 0? O Co2(g) O H20(g) O Na(s) O CH4 (g)

A:

Q: Br 1) NaNO2, H* (аq) 2) HзРО2 Br Br NH2 NaOH (aq) O

A:

Q: H Io NaOH H₂O 3 → Q2

A:

Q: H 0=$=0 HO مهام ?

A: When alcohol is treated with acid catalyst then dehydration occurs and alkene is formed.

Q: 2 Na3PO4 ( _CaCl2 ( Ca3(PO4)2 ( NaCI ( ) + Fill in the correct states of matter for each chemical in…

A: When 2 moles of Na3PO4 reacts with 3 moles of CaCl2 gives aqueous solution of NaCl and Ca3PO4 get…

Q: NH,NO2 NH,I NaOH NaClO Nal

A:

Q: HO + BHA 4 4 CH,CH2OH NO2 © Courtesy of Yi Pang 1ot 12 2 clec BA + 3 Sn + 14 H* + 3 Sn+4 +4 H20 NH…

A:

Q: Sr(s) + H2O(1) → Sr(OH)2(aq) + H2(g)

A:

Q: H2SO4 + Ca(OH)2→ H20 + O Ca,0 O HCaz O CaSO

A:

Q: Indicate whether combining the following elements yields a compound or a mixture,a. H 2 (g) + O 2…

A: Pure substances are made up of only one type of atom or molecule. Compounds are the pure substances…

Q: H,SO (g) 1. (CF,COO),Hg. CH,OH (b) 2. NaBH,

A:

Q: NaOEt 1. O3, Et,0 Br EtOH, heat 2. S(CH3)2

A: In the first step Elimination(E2) reaction takes place. In next step ozonolysis takes . And form…

Q: Question 2

A: The unbalanced chemical equation is given by as follows:

Q: • Na + O, → Na,0 • La,O, + H,0 → La(OH), • N,O, + H,O → HNO, mposition-a compound breaks down into…

A: Combination = The complete balanced reaction =  1. 4Na + O2 →2Na2O2. La2O3 + 3H2O →2La(OH)3 3. N2O5…

Q: H, NI 80 °C АВС DEF + GHI + JKL light Ch FeCly and МЕМ conc H,SO GHI, HGI and HIG then water 10

A: When 1,2,3-triethyl cyclopropane is treated with Hydrogen gas , in presence of catalytical Nickel at…

Q: 1. NaOH 2. H.

A: Aldol condensation: The alpha hydrogen of carbonyl compounds is acidic in nature and it is removed…

Q: in) 2 LL EHOH nNH, xi) OH HSO, (q)

A:

Q: 8) Br Mg CO, H* ?

A: Alkyl halide reacts with magnesium metal to form alkyl magnesium bromide, Grignard reagent. The…

Q: KCIO, + C,„H0,, → KCI +CO, + H,0 3 11

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Alcohol P (i) NAOH SOCI: Q Compound W i) Propanol ii)H;SO,

A: Primary alcohols are oxidized into carboxylic acid and secondary alcohols are oxidized into ketones.…

Q: 1. PbO2+ HBr 2. PbO + NH, → Pb + N, + H,O PbBr, + 02 + H,0

A: Note : Put integer values before starting material and products and balance the equation.

Q: CH,CH,CI (5) ? AICI,

A:

Q: 9) Cao(1) • HO0) -.» Ca(OH)(0) N) NG) - 3 Hig) --- 2 NHC) ) CGH0) • 14 olg) --- 6 C) • 3 HO0) J)…

A: The enthalpy of formation values are taken from standard table.

Q: Cuántos átomos de oro existen en un anillo de 150 gramos? *

A: In english language, question will be- How many gold atoms are there in a 150 gram ring?   Given…

Q: How many boundaries of a mixture composed of 2 molecules CO:(g), H;0 (at 0°C), ammonia gas and…

A: Given that,  We have CO2, H2O, ammonia gas and methanol.

Q: NABH, KCN NH,OH CH,COCH,/NaOH CH,OH/H,0+ CH,=PPh, KMNO/NAOH CH,CH,MgBr

A:

Q: rais. The DU erials is as follows: CaO 100% SIO2 45%; Al2O3 : 55% Fez03 : 20% SiO2 80%;

A: From the above information, we have to determine the required unknown. From the free lime content,…

Q: (1) H,SO, NaC=CH H;O*/H,O НОСH-CH,CH,Br (2) CH;=C(CH,);

A: In the presence of sulfuric acid and CH2=C(CH3)2 is shown below.

Q: Which of the following gases consist of molecules containing three or more atoms?? O Rn O N,0 CI, Ar…

A:

Q: 1. NaOEt, E1OH,

A: Given

Q: OH P Q OH HO OH HO HỎ Q = KMNO, Q = MnO, / CH,Cl, Q = Ag,CO, on celite, PhH P= NABH, / CeCl,.7H,0 |…

A: P is NaBH4/MeOH it is reducing  agent by  Releasing Hydrogen in which it reduce only Ketone not…

Q: (A.H) RCONCS CH,CONCS NH2 'R M.w=(63.20 H. ELOH M.W: M.W: 303.75 g: 1.8325

A:

Q: Which one of the following is TRUE about AH°f for the substances given? a. AH°ffor Br2(e) = 0 b.…

A: Enthalpy of Formation - It is the reaction enthalpy of the compound in which the reaction takes…

Q: C;H3 + O2 CO, + H,0

A:

Q: 3A+6B→3D AH - 403 kJ/ тol E + 2F→ A AH, = – ΔΗ 105.2 kJ/mol C→E+3D AH3 = +64.8 kJ/mol 6B+4E+6F→C AH…

A: Given equations are:

Q: why ny is Bacly:2H,0 not written as Bacla Hy Oz

A: Why BaCl2.2H2O is written as BaCl2H4O2 ?

Q: (1) C(s, graphite)+ O2(g) → CO(g) AH =-393.5 kJ/mol (2) H2(g) + ¼O:(g) → H20(g) (3) C(s, graphite) +…

A: Given: The thermochemical reactions are as follows: C(s)+O2(g)---------->CO2(g)…

Q: K20 + H2O КОН ↑

A: The given unbalanced chemical reaction is,                    _______K2O + ______H2O ------>…

Q: 2P 4( s) + 10 O 2( g) = 2 P 40 10( s) 10 K = [02] K= [P4O10? [P4010? K = P4010) K = [P4] [02]1/5 K =…

A: The question is based on the concept of equilibrium. we have been provided an equation. we have to…

Q: Which of the following is a mixture? O Na2SO4 (s) O NaBr (s) O Na (s) O NaBr (aq)

A: Mixture is the combination of diffarent chemical species where properties of those  species are…

Q: For which of the following substances does AH = 0? O C(s) O H₂O(g) O SO₂(g) O NaCl(s)

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: 4. C,H„O̟ C̟H,O CO, 5. Al CUSO, Cu + Al,(SO,)3

A: Solution :    The balanced chemical equation has an equal number of atoms on both sides of the…

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.