JEE CHEMISTRY UNIT 11
QUIZ NO 3
TOTAL QUESTIONS = 20
1. Which property is common among all actinides?
A. Paramagnetism
B. Low density
C. Radioactivity
D. Formation of complexes
2. Which element among the d-block has the highest density?
A. Iridium
B. Gold
C. Osmium
D. Platinum
3. Which of the following is the most stable oxidation state of chromium?
A. +2
B. +4
C. +6
D. +3
4. Why do transition elements form colored compounds?
A. Due to d-d transitions
B. Due to ligand field splitting
C. Due to f-f transitions
D. Due to charge transfer transitions
5. Which d-block element is used as a catalyst in the Haber process?
A. Palladium
B. Nickel
C. Iron
D. Cobalt
6. What is the configuration of Cr3+ ion?
A. [Ar] 3d5
B. [Ar] 3d4
C. [Ar] 3d3
D. [Ar] 3d2
7. Which of the following has the highest number of unpaired electrons?
A. Fe
B. Co
C. Mn
D. Cr
8. Which of the following is the general outer electronic configuration of d-block elements?
A. [noble gas] ns2 np6 (n-1)d1-10
B. [noble gas] ns2 (n-1)d1-10
C. [noble gas] ns1 (n-1)d1-9
D. [noble gas] ns2 np6 (n-2)f1-14
9. What is the color of aqueous solution of CuSO4?
A. Red
B. Blue
C. Yellow
D. Green
10. What is the oxidation state of Fe in K3[Fe(CN)6]?
A. +1
B. +3
C. +4
D. +2
11. Which of the following is used in anti-cancer drugs?
A. Cisplatin
B. Taxol
C. Carboplatin
D. Cisplatin and Taxol
12. What is the main ore of lanthanides?
A. Monazite
B. Bauxite
C. Cryolite
D. Fluorite
13. Which of the following is a characteristic property of actinides?
A. Radioactivity
B. High density
C. Formation of complexes
D. High reactivity
14. Which metal is present in vitamin B12?
A. Magnesium
B. Zinc
C. Cobalt
D. Iron
15. Which element among the d-block is known for its ferromagnetic property?
A. Magnesium
B. Cobalt
C. Nickel
D. Iron
16. Which d-block element is used in galvanization?
A. Copper
B. Iron
C. Tin
D. Zinc
17. The oxidation state of Mn in KMnO4 is
A. +7
B. +5
C. +6
D. +4
18. Which of the following is used in the catalytic converter in automobiles?
A. Au
B. Pd
C. Rh
D. Pt
19. Which element in the d-block forms the most stable +3 oxidation state?
A. Mn
B. Cr
C. Fe
D. Ni
20. Which of the following elements has the highest second ionization energy?
A. Ni
B. Zn
C. Fe
D. Cu
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