Chemistry of Actinides MCQ-B.Sc. Second year (UG degree course) Semester Fourth, Inorganic chemistry paper-X

B.Sc. Second year Undergraduate degree course Semester Fourth Inorganic chemistry paper X

Chapter -Chemistry of Actinides

Multiple Choice questions:

1. Which property of actinoids cannot be explained?
a) Radioactive
b) Oxidation
c) Magnetic
d) Acidic

2. Which is the most stable oxidation state of actinoids?
a) +2
b) +3
c) +4
d) +5

3. Actinoids are mostly attacked by which acid?
a) Hydrochloric acid
b) Nitric acid
c) Sulphuric acid
d) Boric acid

4.Which of the actinoids is used in the treatment of cancer?
a) Plutonium
b) Uranium
c) Curium
d) Thorium

5. Which of the actinoids is used as a nuclear fuel?
a) Actinium
b) Thorium
c) Uranium
d) Californium

8. Which isotope of plutonium is used in nuclear bombs?
a) P-238
b) P-239
c) P-240
d) P-241

9. Choose the correct statement.
a) Both actinoids and lanthanoids are less basic
b) Both actinoids and lanthanoids do not show same oxidation of +3
c) Both actinoids and lanthanoids do not exhibit magnetic and spectral properties
d) Both actinoids and lanthanoids are electropositive

10. Which was the first transuraniumactinoid element to be discovered?
a) Neptunium
b) Americium
c) Protactinium
d) Actinium

11. Which one of the following elements shows the maximum number of different oxidation states in its compounds?

a)      Eu
b)      La
c)      Cd

d) Am

12. The elements belonging to 5f-inner transition series are

a)    Th, Pu, Np, Cf, No
b)   Sm, Pr, Th, Pu, Np
c)   Pr, Th, Pu, Np, No

d) Sm, Pr, Np, Cf, No

13. Actinide series starts from elements having atomic number from

a)      89-103
b)     90-103
c)      90-104

d) 91- 104

14. The element occurring in nature in trace amount is

a)      neptunium
b)      Lawrencium
c)      Mendelevium