Which of the following properties of Group I elements decrease(s) with increasing atoinic number? 1 Melting temperature 2 First ionization energy 3 Atomic radius

Q: 17. Which of the following pairs of oxides will react with both dilute acid and alkali to form…

A: This is an acid base reaction

Q: 1. Solve the following queries related to gravimetric analysis. Make sure to show full and complete…

A: Handwritten calculations are shown below:

Q: Choose the frequency of a peak that is most likely to correspond to an sp³ C-H stretch in an IR…

A: Frequency is directly proportional to force constant(K)Hybridisation affects force constant in the…

Q: The reaction F2 + 2CIO2 2FCIO2 was shown to give the following results at 250 K: Exp [F2]/mol…

A: Rate of reaction = rate of disappearance of F2 From experiment 1 and 2 it is clear that, when…

Q: Select the most suitable reagent and reaction conditions for the following conversion. 15. Br Br A…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: An oxide in Period 3 reacts with NaOH and HCl to form salts. What is the formula of the oxide A CO:…

A: A multiple choice question based on periodic table, which is to be accomplished.

Q: A mixture consisting of only chromium(III) bromide (CrBr3) and aluminum bromide (AlBr3) weighs…

A:

Q: 10. Give the IUPAC name of the following Br CH;CH,CH,Ċ–CH, compound. A 3-bromo-3-methylhexane B…

A: The first step involves in the IUPAC naming of a compound is to find out the parent chain of the…

Q: 1) Calculate the pH of a solution prepared by dissolving 1.75 g of sodium acetate, CH3COONa, in 78.0…

A: Data

Q: 40. When cone H2SO4 and cone HNO3 are mixed, the following reaction occurs: H2SO4 + HNO3 c HSO4 +…

A: according to Bronsted-Lowery the base is a proton acceptor and Specie -1 accept proton and specie…

Q: The position of the equilibrium for the reaction H;(g) + I;®)=2HI(2), AH is negative, will shift to…

A: According to Le-Chatteliar principle-1)Changing concentration affect the equilibrium. When…

Q: 1. Finish this reaction equation and balance it correctly, assuming iron forms a +2 ion in iron…

A: Answer: Whenever formation of a molecule takes place, net charge on it will be zero because molecule…

Q: What type of bond(s) exists in sodium tetrahydridoborat br sodium bortthariride, lonic bonds…

A: Ionic bond - ionic bond is electrostatic force of attraction between two oppositely charged ions.…

Q: 1. Solve the following queries (parts a), b), & c)) dealing with volumetric analysis. Make sure you…

A: 1) Mass of solid mixture = 0.05485 g that contains ferrous ammonium sulphate and ferrous chloride…

Q: Select all molecules with a "quintet" ¹H NMR splitting pattern for the indicated hydrogen. H

A: Given : structure of molecules Tip : find adjacent hydrogen equal to 4

Q: The Avogadro constant is defined as: A The number of atoms in exactly 1gof carbon-12 B The number of…

A: The Avogadro constant (NA) is the proportionality factor that relates the number of constituent…

Q: Calculate the pH of the solution that results when 40 cm' of 0.05 mol dm hydrochloric acid solution…

A: mmoles of HCl added = 40 x 0.05 = 2  mmoles of NaOH added = 10 x 0.1 = 1  Total volume after mixing…

Q: 38. Which of these species cannot act as a ligand? A CH3NH2 B H2NCH2CH2NH2 C CH.CH,NH2 D CH,NH,

A: Answer - D) CH3 NH3+ Ligand act as electron pair donar to metal to form coordinate bond

Q: The equilibrium constant for the reaction: PCI(g) + Cl:(g) PCIs(g) is 8.0 x 10 mol dm'. The…

A: Given Reaction:-     PCl3(g) + Cl2(g) ⇄ PCl5(g)  given reaction is at equilibrium condition. And…

Q: show-all-working-explaining-detailly-each-step

A: Boiling point is temperature required to break the molecule bond.

Q: Which of the following particles will NOT undergo deflection in a magnetic field. A Alpha particles…

A: The particle having charge, deflected in the magnetic field, the positively charged particle…

Q: There is a chemistry problem. The final answer to this problem is CHEMICAL REACTION. Think of a…

A: The purpose is to ask questions regarding chemical changes happening.

Q: 25. The concentration of 4.0 litres of H2sO4 needed to repare 5.0 litres of 2.0 M solution is? A…

A: Given  V1= 4 litres              V2 = 5 litres               M2= 2 M                Find out M1…

Q: On analysis of a compound it was found contain 29.1% of sodium, 40.5% sulphur 30.4% oxygen. What is…

A: Data is given and empirical formula is asked. I write a table form, so u understand better.

Q: Questions 34 - 36 concern the following types of graphs: A B Select from A to D the graph that best…

A: To identify the graph we have to see the rate expression for the reaction . From the rate expression…

Q: 1. Solve the following queries (parts a), b), & c)) dealing with volumetric analysis. Make sure you…

A: (a) First determine the amount of H2SO4 in the solution. Three chemicals were reacted together, HCl,…

Q: 47. Dimethyl amine, (CH);NH, is a weaker base than NH3 48. Neutral iron (III) chloride is uscd to…

A: An organic compound that consists of two methyl groups and an amine group. It is also called a…

Q: Which of the following ions results from the action of hydrochloric acid on n- butylamine…

A: Hydrochloric acid is a strong acid, so it will convert the n-butylamine into the butylammonium ion…

Q: 25. An oxidizing agent is a species that A is oxidized in a reaction B is reduced in a reaction C…

A: Applying definition of oxidation and reduction.

Q: Which one of the following statements is correct about the complex [Cr(NH3).Cl] A It has an…

A: Given complex is, [Cr(NH3)4 Cl2]-

Q: 30. The graph below shows the variation of pH when abase is added to an acid in a conical flask. 10+…

A: Using concept of acid base titration curve formation.

Q: Which of the following pairs of liquids, on mixing will form a solution that will deviate positively…

A: (1) Nitric acid and water - When Nitric acid and water mixed together they form a solution shows…

Q: The mass spectrum of a vaporized sample of potassium is given below. Use the information on he…

A: formula used average atomic mass =total relative atomic mass respect to intensity of given different…

Q: The enthalpy change for the equilibrium reaction, 2NO (g) + O2 = 2NO2 (g) is - 113 kJ mol".The…

A: This reaction is an exothermic reaction as energy is released.( Enthalpy change is negative).…

Q: 27. What is the partial vapour pressure of methanol in a Mixture of methanol and ethanol if the mole…

A: We have given that A mixture contain methanol  and ethanol Consider Methanol to be A and ethanol to…

Q: A sample of hydrocarbon on complete combustion gave 1.32 g of carbon dioxide and 0.72 g of water.…

A: Since we know that on complete combustion of of any hydrocarbon it produces H2O and CO2 . To solve…

Q: Which of the hydrides below will be hydrolysed in water to give a basic solution? A CH4 B SiH4 с вн…

A: CH4  do not hydrolysed because of absence of vacant orbital. SiH4 undergo hydrolysis because of…

Q: Explain by means of reaction equations how you would synthesize each of the following compounds.…

A: The question is based on the concept of organic synthesis.  we need to synthesize the product using…

Q: One gram of a sample of Bi decays to 0.25g after 10 days. The half life ofBi in 83 83 days is A 3 B…

A:

Q: Which one of the following equations represents the electron affinity of chlorine? A. 2. C(g)+ é -…

A: The energy released when an extra electron is added to a neutral atom or molecule in the gaseous…

Q: - 9. Which of the following would produce a precipitate when equal volumes of 0.5 mol/L aqueous…

A: Note: Since you have posted multiple questions, we will provide the solution only to the first…

Q: Which of the following compounds would likely undergo a nucleophilic addition reaction? A Ethene B…

A: Solution:       Nucleophilic addition reaction shows attack of nucleophile on electron deficient…