![General Chemistry: Atoms First](https://www.bartleby.com/isbn_cover_images/9780321809261/9780321809261_largeCoverImage.gif)
Interpretation
The metals which have only one oxidation state should be determined from the given metals.
Concept introduction:
Transition element is one which can form one or more stable ions with a partially occupied d-subshell. Most of the
Oxidation state is the difference between the numbers of electrons associated with an atom in a compound.
In ions the oxidation state is the ionic charge
In covalent compounds the oxidation state corresponds to the formal charge.
In elements oxidation state is assumed to exist in the zero oxidation state.
The variable oxidation state of transition elements is due to their small energy difference between the 4s and 3d subshells.
Some elements with variable oxidation states are listed below,
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Chapter 20 Solutions
General Chemistry: Atoms First
- The following reactions all occur in a blast furnace. Which of these are redox reactions? (a) 3Fe2O3(s)+CO(g)2Fe3O4(s)+CO2(g) (b) Fe3O4(s)+CO(g)3FeO(s)+CO2(g) (c) FeO(s)+CO(g)Fe(l)+CO2(g) (d) C(s)+O2(g)CO2(g) (e) C(s)+CO2(g)2CO(g) (f) CaCO3(s)CaO(s)+CO2(g) (g) CaO(s)+SiO2(s)CaSiO3(l)arrow_forwardsniparrow_forwardThe oxidation state of chromium in CrAsO4 is: (a) 0 (b) +1 (c) +2 (d) +3 (e) -3arrow_forward
- What is the highest oxidation state for (a) Nb; (b) Y; (c) Tc?arrow_forwardWhat are the oxidation numbers of the following: (a) Si in SiO2 (b) N in NH4+ (c) N in NH3 (d) N in N2Oarrow_forward3. Determine the oxidation state of the specified element in the following: (a) Cr in Cr,0,2- (c) Fe in Fe203 (b) Mn in MnO2 (d) Ag in AgClarrow_forward
- Predict the products of each of the following reactions and then balance the chemical equations.(a) Fe is heated in an atmosphere of steam.(b) NaOH is added to a solution of Fe(NO3)3.(c) FeSO4 is added to an acidic solution of KMnO4.(d) Fe is added to a dilute solution of H2SO4.(e) A solution of Fe(NO3)2 and HNO3 is allowed to stand in air.(f) FeCO3 is added to a solution of HClO4.(g) Fe is heated in air.arrow_forward(a) Why do transition elements show variable oxidation states? (i) Name the element showing maximum number of oxidation states among the first series of transition metals from Sc (Z = 21) to Zn (Z = 30). (ii) Name the element which shows only +3 oxidation state. (b) What is lanthanoid contraction? Name an important alloy which contains some of the lanthanoid metals.arrow_forwardAccount for the following : (a) Copper shows its inability to liberate hydrogen gas from the acids. (b) Scandium (Z = 21) does not exhibit variable oxidation states.arrow_forward
- What is the coordination number for(a) an octahedral void(b) a tetrahedral void.arrow_forwardThe lustre of a metal is due to:(a) its high density(b) its high polishing(c) its chemical inertness(d) Presence of free electrons.arrow_forwardA slag sample is known to contain all of its iron in the forms of FeO and Fe2O3. A sample of 1,000 g of the slag was dissolved in hydrochloric acid according to the usual method, then reduced with stannous chloride and finally titrated with a 0.02237 M solution of potassium permanganate, of which 28.59 mL were used. A second aliquot of the slag sample, weighing 1,500, was dissolved in a nitrogen atmosphere to further adjust the oxidation state of the iron, it was immediately titrated with the same potassium permanganate solution. If this second experiment required 15.60 mL of permanganate solution, calculate: a) The percentage of total iron in the slag. b) The percentages of the oxide FeO and Fe2O3arrow_forward
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781938168390/9781938168390_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781285199047/9781285199047_smallCoverImage.gif)