JEE CHEMISTRY UNIT 09
QUIZ NO 1
TOTAL QUESTIONS = 20
1. The modern periodic table is based on;Atomic mass;Atomic number;Number of neutrons;Number of isotopes;B
A.
B.
C.
D.
2. The periodic table was first proposed by
A. Dalton
B. Moseley
C. Lavoisier
D. Mendeleev
3. Which of the following is an alkali metal?
A. Calcium
B. Magnesium
C. Potassium
D. Zinc
4. Which of the following elements is a p-block element?
A. Chlorine
B. Sodium
C. Calcium
D. Scandium
5. The element with atomic number 20 is
A. Potassium
B. Sodium
C. Calcium
D. Magnesium
6. Which of the following is a characteristic of alkali metals?
A. Low melting points
B. Low reactivity
C. High ionization energy
D. Non-metallic character
7. The element with the highest ionization energy is
A. Neon
B. Fluorine
C. Helium
D. Hydrogen
8. Which of the following elements has the highest electronegativity?
A. Oxygen
B. Fluorine
C. Nitrogen
D. Chlorine
9. Which of the following elements belongs to the f-block?
A. Oxygen
B. Scandium
C. Potassium
D. Lanthanum
10. Which of the following is an f-block element?
A. Potassium
B. Lanthanum
C. Calcium
D. Sodium
11. The valency of an element depends on
A. The number of neutrons
B. The atomic mass
C. The number of isotopes
D. The number of valence electrons
12. The element with atomic number 29 belongs to which block?
A. s-block
B. f-block
C. p-block
D. d-block
13. The electron affinity of which of the following elements is highest?
A. Bromine
B. Chlorine
C. Oxygen
D. Fluorine
14. The noble gases belong to which group?
A. Group 18
B. Group 16
C. Group 17
D. Group 15
15. Which group in the periodic table contains alkali metals?
A. Group 2
B. Group 18
C. Group 17
D. Group 1
16. Which group contains the halogens?
A. Group 17
B. Group 16
C. Group 18
D. Group 15
17. The atomic radius of an element increases
A. Down the group
B. Across the period
C. From left to right
D. In transition elements
18. The ionization energy increases across a period because
A. Number of shells increases
B. Atomic radius decreases
C. Electron shielding increases
D. Nuclear charge decreases
19. The d-block elements are also known as
A. Alkali metals
B. Transition elements
C. Noble gases
D. Halogens
20. Which group in the periodic table is known as halogens?
A. Group 15
B. Group 17
C. Group 18
D. Group 16
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