To what group of the Periodic Table is the element with the following successive ionization energies(KJ/mol) likely to belong: 786, 1581, 3236, 4360, 16000 A Group 1 B Group 2 C Group 3 D Group 4

Q: 4. When the compound represented by the structural formula is warıned with aqueous solution of…

A: Ester hydrolysis reaction: In the ester hydrolysis reaction, the ester is converted into carboxylic…

Q: When a hydroxyl compound is treated with hot acidified potassium permanganate, the final oxidation…

A: Iodoform test is given by the compounds containing -CH3CO group or -CH3CHOH group.

Q: The number of moles of (CO:) gas present in 44.8 cm' at standard temperature and pressure (STP)…

A: Molar volume of a gas is the volume covered by 1 mol of it. Number of moles =volume of gasmolar…

Q: 24. Three oxides have the structures: giant molecular, intermediate between giant molecular and…

A: Structure of SiO2 is giant molecular structure.  Structure of CO2 is covalent molecule. GeO2 has…

Q: 35. Who discovered the neutron? J. J. Thompson Ernest Rutherford James Chadwick Marie Curie A B C

A: The essential nature of the atomic nucleus was established with the discovery of the neutron by…

Q: 19. Two pure liquids. S and T. which form an ideal mixture. have vapour pressures 12.9 kPa and 26.8…

A: The vapour pressure of the mixture of the two pure liquids can be calculated using Raoult's law. It…

Q: Select the compound that has the lowest boiling point. A CH)(CH2),CH;OH B CH,CH2CH(CH;)CH;OH C…

A: The temperature at which the pressure exerted by the surrounding atmosphere is equal to the pressure…

Q: lodine has a half-life of 8.07 days. What fraction of a sample of iodine-131 will be left after…

A: The given information is as follows: The half life of the Iodine = 8.07 days The fraction of sample…

Q: The standard enthulpies of formation of ethyne, Czl12, carbon dioxide, CO2 and wnter, H2(), are…

A: Change in enthalpy = (sum of enthalpies of product) - ( sum of enthalpies of reactants) Delta Hfor…

Q: Alkanes do not undergo many chemical renetions. This is hecause they are nonpolarand neutral polar…

A: Compounds involving only carbon and hydrogen are called hydrocarbon. It is first classified as two…

Q: In which of the following complex ions is the 13. ligand bidentate? A (Cu EDTA]?- B (Co(C20.)} C…

A: Interpretation -  To tell about in which of following complex ion ligand is a bidentate ligand -…

Q: Propanamide (CH,CH; CONH;) could be prepared by reacting ammonia with CH,CH,COCH, B A B reacting…

A: Amides can be prepared by reaction of esters or acid chlorides with ammonia.  Ester +  NH3…

Q: Calculate the pH of a buffer solution that is made by mixing equal volumes of 0.1 mol dm sodium…

A: The pH of the buffer solution has to be given,

Q: Which of the following pairs of oxides will react with both dilute acid and alkali to form salts? A…

A: We know that Oxides that have amphoteric nature react with both acids and bases.

Q: The reaction between ethanoyl chloride and the hydroxide ion to give an acid is classified as:…

A:

Q: 14. lodoethanoic acid ionizes as follows CH;ICO,H CH;ICO, + H' The concentration of the hydrogen…

A: Since the given acid is a weak acid, the concentration of hydrogen ion can be expressed as: H+ =…

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: 41. The graph of boiling point against hydrides of Group 14.15.16, !7 (Group IV. V. VI. VII) reveals…

A: Boling  point  direct  proportional  to surface  area and  intermolecular  force  of interactions.

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: II. Barium hydroxide, Ba(OH), of mass 8.55 g was dissolved in water and imade up to I dm' of…

A: Here we need to find the concentration of OH-  in the aqueous solution. 1 dm3 = 1 L = 1000 mL

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: 23. One property of a buffer solution, prepared trom a weak acid and its sodium salt is that A its…

A: Acid Buffer Is a combination of weak acid and its conjugate base (salt) weak acid 》Has pH always…

Q: Some species which have five unpairec clcetrons in the 3d subshell include I A manganese atom 2 An…

A: The question is based on the concept of electronic configuration . We have to identify the atoms or…

Q: Identify the conjugate acids in the following acids-base equilibrium (Fe(H;O)«]*(aq) + H20(1) =…

A: An acid is defined as the substance or a species that can donate protons in a solution whereas a…

Q: In an experiment to determine the relative molecular mass of ethanoic acid in an organic solvent,…

A: The molecular mass of ethanoic acid is determined at different temperatures. The mass of the…

Q: 22. A sample of oxygen gas contains "O and "O. The peaks in the mass spectrum of the oxygen sample…

A: Sample contains two isotopes of O: 16O and 18O. Thus there will a signal at 16O and 18O in case of…

Q: 32. A possible isomer of buta-1,3-diene (1.3-butadiene). CH;=CII-CH-CH2 is A cyclobutane B butene C…

A: Answer -c) butyne  Isomer - They have same molecular formula but different structure formula is…

Q: In the titration of ammonia solution with ethanoic acid solution, the endpoint can best be…

A: Answer :- D) a PH meter.  In the titration of Ammonia solution with ethanoic acid, the endpoint can…

Q: show-all-working-explaining-detailly-each-step Answer should be typewritten using a computer…

A: For a volatile organic compound  Mass is given that is 0.15g Pressure= 753mm of Hg,converted into…

Q: Which of the following compounds would react with acidified potassium dichromate solution on…

A: Acidified potassium dichromate(VI) works as an oxidizing agent. It oxidizes: Primary alcohols…

Q: An organic compound gives a positive test with Tollen's reagent (ammoniacal silver nitrate). This…

A: Here the question,  For tollens test,  A terminal -α hydroxy ketone give positive Tollens test…

Q: Choose the species with a trigonal planar 13. shape. A NH, BFs NH3 H,O' B

A: The shape of the molecule is given by the hybridisation of the central atom. It is the phenomenon of…