MCQ Questions D and F Block Elements Inorganic Chemistry Chapter 8 Class 12
NCERT Inorganic Chemistry D-and-F Block Elements Class 12th Chemistry MCQ Practice Questions for Jee Mains | NEET | Class 12.
Prepare these important Questions of D-and-F Block Elements in Inorganic Chemistry, Latest questions to expect in Jee Mains | NEET | School Exams.
1. Copernicium has electronic configuration as:
a. 7s² 6d²
b. 7s² 6d⁴
c. 7s² 6d⁶
d. 7s² 6d¹⁰
2. Arrange according to melting point order:
1. W > Re > Ru > Rh
2. Re > Ru > Rh > W
3. Re > W >Ru > Rh
4.W > Rh > Ru > Re
3. Enthalpy of atomisation is maximum for:
1. Titanium
2. Cobalt
3. Vanadium
4. Scandium
4. Among Ti, V, Cr, Mn which metal has minimum metallic radius:
1. Ti
2. Cr
3. Mn
4. V
5. Which of the following element have highest oxidising potential in +3 oxidation state?
1. Mn
2. Co
3. Fe
4. V
6. +5 oxidation state is not possesed by:
1. Mn
2. Fe
3. Cr
4. V
7. The value of E⁰ is more negative than expected for:
1. Zn
2. Ni
3. Mn
4. All of these
8. High value of E⁰ of Nickel is contributed to:
1.Low ionisation enthalpy I
2. Low atomisation energy
3. Low ionisation enthalpy II
4. High hydration energy
9.In VX₂ and CuX type halide X cannot be:
1. F
2. Cl
3. Br
4. I
10. Ferrates (VI), are formed in:
1. Acidic medium
2.Neutral medium
3. Alkaline medium
4. Both 1 and 2
11. Which among the following will release hydrogen gas on reaction with dilute acid?
1. Mn⁺³
2. Co⁺³
3. Ti
4. Cr⁺²
12. Wilkinson’s catalyst is:
1. Homogeneous catalyst
2. Heterogeneous catalyst
3. Dehydrogenating catalyst
4. Oxidising catalyst
13.Which metal/ion catalyses reaction between iodine and persulphate ions?
1. Fe(III)
2. Co(II)
3.Fe(II)
4. Ni(II)
14. Alloys are formed by atoms with metallic radii that are how much percent of each other?
a. 20%
b. 5%
c. 50%
d. 15%
15. Mn₂O₇ is a:
1. Ionic green solid
2. Ionic yellow solid
3. Covalent green oil
4. Covalent yellow gas
16.Potasium dichromate is used as —– in volumetric analysis
1. Primary standard
2. Secondary standard
3. Indicator
4. Catalyst
17. In neutral medium thiosulphate is oxidised to which species by permanganate
1. Peroxodisulphuric acid
2. Caro acid
3.Sulphate
4. Dithionate
18.Lanthanum belongs to which block:
1. p
2. d
3. s
4. f
19. Which of the following carbide is not formed by lanthanoids?
a. Ln₃C
b. Ln₂C₃
c. Ln₄C₃
d. All of these
20. What is configuration of Gd²⁺
1. 4f⁸
2. 4f⁷5d¹
3. 4f⁵5d³
4. 4f⁷6s¹
21. Which one of the following is coinage metal:
1. Ni
2. Fe
3. Cu
4. Zn
22. Which of the following lanthanoid is steal hard?
1. Dy
2. Sm
3. Ho
4. Yb
23. Which element is not present in misch metal:
1. Carbon
2. Magnesium
3. Calcium
4. Sulphur
24. State True or False:
a. Hydroxides of lanthanoids are just hydrated oxides.
b. Trivalent lanthanoids ions are colored in both solid state and aqueous solution.
1. F,F
2. T,F
3. T,T
4. F,T
25. Actinoids on reaction with boiling water forms:
1. Oxides only
2. Hydride only
3. Hydroxides
4. Both Oxide and Hydride
26. Choose the correct statement:
1. V₂O₄ do not dissolve in acids.
2. V₂O₄ dissolve in acids and form VO⁺ salts.
3. V₂ O₄ dissolve in acids and form VO⁺² salts.
4. V₂O₄ dissolve in acids and form VO₂⁺ salts.
27. Choose the incorrect option with respect to uses:
1. MnO₂ – Dry Cells
2. Ln₂O₃ – Petroleum Cracking
3. AgBr – Photographic industry
4. V₂O₅ – Pigment industry
28. Which of the following do not exhibit +4 oxidation states?
1. Pr
2. Sm
3. Nd
4. Tb
29. In the reaction of Fe⁺² ions with potassium permanganate, color of solution changes from:
1. Yellow to Green
2. Red to Yellow
3. Violet to Green
4. Green to Yellow
30. Which of the following for manganate ion is true:
1. Diamagnetism only
2. Diamagnetism along with temperature dependent strong paramagnetism
3. Diamagnetism along with temperature independent weak paramagnetism
4. Diamagnetism along with temperature dependent weak paramagnetism