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  1. Problems
  2. /The d- and f-Block Elements
  3. /Transition Elements (d-Block)

Transition Elements (d-Block)

Chemistry
+ Upload a Problem
More in The d- and f-Block ElementsTransition Elements (d-Block)Lanthanoids and Actinoids (f-Block)
22 problems
Exam:
Type:
1.
The atomic radii are 126 pm for iron, 129 pm for chromium and 175 pm for lead… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Medium
2.
A brass is 64.0 % copper by mass, and the rest is zinc… New
High School (11–12) · Transition Elements (d-Block)A-Level, IBStemPy LabStemPy Lab
Easy
3.
Sulfur dioxide, 160 g with a molar mass of 64.0 g/mol, passes over vanadium(V) oxide, and 90.0 % of… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Medium
4.
Hot, acidified potassium permanganate oxidises toluene to benzoic acid: 5C₆H₅CH₃ + 6MnO₄⁻ + 18H⁺ →… New
High School (11–12) · Transition Elements (d-Block)A-Level, IB, JEE MainStemPy LabStemPy Lab
Hard
5.
A 1.50 g sample of sodium nitrite, NaNO₂, is dissolved and made up to 250 mL… New
High School (11–12) · Transition Elements (d-Block)A-Level, IB, JEE MainStemPy LabStemPy Lab
Medium
6.
A solution holds 0.0600 mol of potassium manganate… New
High School (11–12) · Transition Elements (d-Block)A-Level, IB, JEE MainStemPy LabStemPy Lab
Medium
7.
A 7.90 g sample of pure potassium permanganate, with a molar mass of 158 g/mol, is heated until it… New
High School (11–12) · Transition Elements (d-Block)A-Level, IBStemPy LabStemPy Lab
Easy
8.
A student weighs 0.1470 g of pure potassium dichromate, with a molar mass of 294 g/mol… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Medium
9.
A 25.0 mL sample of 0.0800 mol/L sodium chromate solution is acidified with 0.100 mol/L sulfuric… New
High School (11–12) · Transition Elements (d-Block)A-Level, IBStemPy LabStemPy Lab
Easy
10.
A works wants 1.47 kg of potassium dichromate, K₂Cr₂O₇, which has a molar mass of 294 g/mol… New
High School (11–12) · Transition Elements (d-Block)A-Level, IB, JEE MainStemPy LabStemPy Lab
Medium
11.
Chromite ore is roasted with sodium carbonate and air: FeCr₂O₄ + Na₂CO₃ + O₂ → Na₂CrO₄ + Fe₂O₃ +… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Medium
12.
A solution absorbs light of wavelength 620 nm… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Medium
13.
E°(Cu⁺/Cu) = +0.52 V and E°(Cu²⁺/Cu⁺) = +0.16 V… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Hard
14.
Find the spin-only magnetic moment of Cr³⁺ (Z = 24), Fe²⁺ (Z = 26) and Ni²⁺ (Z = 28), in BM. New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Medium
15.
Copper has Δa H = 339 kJ/mol, Δi H₁ = 745 kJ/mol and Δi H₂ = 1958 kJ/mol… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Hard
16.
The third ionisation enthalpy of manganese is 3260 kJ/mol… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Hard
17.
The metallic radii of the first series are Sc 164 pm, Cr 129 pm and Ni 125 pm… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Medium
18.
The enthalpy of atomisation is 397 kJ/mol for chromium, with a molar mass of 52.0 g/mol, and 126… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Medium
19.
An ion M³⁺ of the 3d series has the configuration 3d³… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Medium
20.
The filling order would give palladium (Z = 46) the outer configuration 4d⁸ 5s²… New
High School (11–12) · Transition Elements (d-Block)StemPy LabStemPy Lab
Hard
21.
Iron has atomic number 26. Write the configuration of the atom, and find the number of electrons in… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Medium
22.
Scandium (Z = 21), copper (Z = 29), zinc (Z = 30) and cadmium (Z = 48) are all in the d block… New
High School (11–12) · Transition Elements (d-Block)A-Level, Board Exam, IBStemPy LabStemPy Lab
Easy