An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic. The solution is Weakly conducting compared with a solution of NaCl of the same concentration. Which of the following substances could the unknown be: KOH, NH3, HNO3, KClO2, H3PO3, or CH3COCH3?

Q: Why does Ti5+ not exist?

A: Titanium is a transition element with atomic number 22. Ground state electronic configuration is 1s2…

Q: Complete and balance the following equations, and identify the oxidizing and reducing agents: MnO4…

A: Redox reaction- the reaction in which oxidation and reduction takes place simultaneously called as…

Q: Given the following net ionic equation Cr2072- + Fe2+ → Cr3+ + Fe3+ (All of the species are in…

A: Answer option D) [oxidized species] = Fe2+ (aq); [oxidizing agent] = Cr2O72- (aq)

Q: 1. Which would you expect to produce an aqueous solution with a lower pH? A 0.1 M solution of…

A: Answer: Salts of strong base and strong acid will give neutral pH in aqueous solution. similarly,…

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A: Carbon fiber

Q: 1.Which compound is used in respirators since it reacts with CO2(g) to produce O2(g)? a.RbO2 b.CsO2…

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Q: Write the state of hybridisation, the shape and the magnetic behaviour of the following complex…

A: (i) [Cr(NH3)4Cl2]Cl: Hybradisation of [Cr(NH3)4Cl2]Cl is d2sp3 Geometry of [Cr(NH3)4Cl2]Cl is…

Q: How the ns2np5 configuration accounts for halogen reactivity with metals

A: The reactivity of halogens with metal has to be explained.

Q: How many electrons are in the valence d orbitals in thesetransition-metal ions? (a) Co3+, (b) Cu+,…

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Q: Based on the data in Appendix E, (a) which of the following is the strongest oxidizing agent, and…

A: If the reagent present in the reaction which would contributes a oxygen, or extracts electron is…

Q: Assign reasons for each of the following :(i) Transition metals generally form coloured…

A: In periodic table, four main blocks are there. These are s block, p block, d block and f block.…

Q: what are some of the ways to identify a cyanide hazard in a gold mining and ore processing site and…

A: According to the ICMC, the amount of cyanide used in commercial gold operations is typically in the…

Q: Treatment of Cobalt (II) oxide with oxygen at high temperatures gives Co304. Write a balanced…

A: Write balanced reaction and determine the oxidation number of cobalt in Co3O4 ?

Q: Which one of the following cannot exhibit linkage isomerism? O K2[Ni(NC)2CI2] O Cu(NO2)2(NH3)2 O…

A: Linkage isomerism: Isomer complex in which the ligand co ordinates to the metal. For eg. Nitrite

Q: Enumerate some CHEMICAL PROPERTIES of ferrous ammonium sulfate hexahydrate

A:

Q: Show that this reaction for the oxidation of NO2 to nitric acid is balanced in terms of change of…

A: 3 NO2 + H2O → 2 HNO3 + NO

Q: Use oxidation numbers to show that the production of iron metal from its ore 1Fe2O32 by reaction…

A: Redox reactions are the combination of reduction and oxidation reactions. The type of reaction in…

Q: What is the electron transfer of C8H18+O2=CO2+H2O

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Q: Predict the products of each of the following reactions and then balance the chemical equations.(a)…

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Q: Which of the following N-containing compounds does N have the highest oxidation state, and why? A.…

A: The Oxidation states for the given compounds can be calculated as: A. Fe(NO3)3…

Q: If a reducing agent M reacts with an oxidizing agent N+ to give M+ and N, and the equilibrium…

A:

Q: What types of isomers are possible for Na2[M(Cl)2(SCN)4]? What is the oxidation state of the metal,…

A: Isomers are the compound having same molecular formula but different ligand substitution or…

Q: How are the silica tetrahedrons linked for CaSiO3 ? Which class of silicates does this compound…

A: The given compound CaSiO3 is example of pyroxene. The main formula unit in it is SiO32-. The ionic…

Q: What is the charge (oxidation state) of the cation in Hg2O?

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Q: Explain the role of each of the following in the extraction of metals from their ores :(i) CO in the…

A: Extraction of metals: Extractive metallurgy is the practice of removing valuable metals from an ore…

Q: Why is the oxidation state of Fe 2.5?

A: Iron is a transition metal. It can exists in more than one oxidation state in the bonded state.

Q: 0.95 V 0.55 V 1.34 V Cr(VI) Cr(V) - Cr(IV) 1.72 V 1.38 V 2.1 V -0.74 V -0.424 V Cr(III) - 0.90 V…

A:

Q: Write the formulas of the products to show why Fe3+ or Fe(H2O)63+ is acidic in water

A: An acid is a substance which can release H+ /  H3O+ ions in water.

Q: Write the reactions involved in the following processes: (i) Leaching of bauxite ore to prepare pure…

A: Given processes, (i) Leaching of bauxite ore to prepare pure alumina. (ii) Refining of zirconium by…

Q: 6. Why would magnesium inhibit the formation of CaC2O4 crystals?

A: CaC2O4 crystals are formed when calcium interacts with the oxalate. These are formed in the kidney…

Q: In chemistry, what does it mean when the ratio of the overall Fe in Fe2O3 and Fe3O4 is unity?

A: we are required to find % of Fe in both iron oxide and then compare the % of Fe

Q: Metal oxides tend to be basic and react with acids True or False?

A: Given statement,           Metal oxides tend to be basic and react with acids

Q: Out of NH3 and CO2 which gas will be adsorbed more readily on the surface of activated charcoal and…

A: Adsorption: It is the phenomenon in which the adhesion of ions, atoms or molecules from as solid,…

Q: . Choose the correct shape, weak or strong field, and number of unpaired electrons for [Co(NH3)6]**…

A:

Q: Why is a conductivity measurement of the aqueous solution of a compound a meaningful test?

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Q: What is the oxidation number of S in the compound Na₂S₂O₅?

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A: Paramagnetic substances can be defined as the substances having unpinned electrons in the orbitals.

Q: (i) Indicate the principle behind the method used for the refining of zinc.(ii) What is the role of…

A: The process of extraction of metals ( in pure form) from minerals is termed metallurgy. Minerals may…

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Q: Complete and balance the following equations, and identify the oxidizing and reducing agents: (a)…

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Q: What is the coordination number of the central ion? [Cr(H2O)6]+3 ? a. 3 O b. 6 с. 1 d. 2

A: Coordination number is the number of the ligands attached  to the central metal atom or ion . for…

Q: What is the function of SiO2 in the metallurgy of copper?

A: Metallurgy is a process in which metals are separated from its ore.

Q: (b) oxidizes Al to Al³+ but does not oxidize Sn to Sn²+ Mg2+ Zn²+ Ca2+ Cd²+ NO3 VO₂+

A: we have to determine which of the given species can oxidize Al but not Sn

Q: Complete and balance the following equations, and identify the oxidizing and reducing agents:…

A: The complete balanced equation has to be given,

Q: When the bidentate glycinate anion H2NCH2CO2-(gly-) reacts with Co(III) oxide, two Co(III)…

A: Reaction of glycinate anion with cobalt(+3) will form a octahedral complex of type M(AA)3-since the…