Major Competitive Exams
Q. Which of the following elements has the largest ionic radius?
-
A.
Na+
-
B.
Mg2+
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C.
Al3+
-
D.
K+
Solution
K+ has the largest ionic radius among the given options.
Correct Answer: D — K+
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Q. Which of the following elements has the smallest atomic radius?
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A.
Sodium
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B.
Chlorine
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C.
Argon
-
D.
Fluorine
Solution
Fluorine has the smallest atomic radius among the given elements.
Correct Answer: D — Fluorine
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Q. Which of the following elements is a d-block element?
-
A.
Sodium
-
B.
Iron
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C.
Calcium
-
D.
Boron
Solution
Iron (Fe) is a d-block element as it has partially filled d-orbitals.
Correct Answer: B — Iron
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Q. Which of the following elements is a f-block element?
-
A.
Uranium
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B.
Titanium
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C.
Zinc
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D.
Copper
Solution
Uranium is an f-block element as it is part of the actinides series.
Correct Answer: A — Uranium
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Q. Which of the following elements is a halogen?
-
A.
Oxygen
-
B.
Nitrogen
-
C.
Fluorine
-
D.
Neon
Solution
Fluorine is a halogen, found in Group 17 of the periodic table.
Correct Answer: C — Fluorine
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Q. Which of the following elements is a halogen? (2017) 2017
-
A.
Bromine
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B.
Barium
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C.
Bismuth
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D.
Boron
Solution
Bromine is a halogen, located in group 17 of the periodic table.
Correct Answer: A — Bromine
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Q. Which of the following elements is a member of the actinide series?
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A.
Radium
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B.
Plutonium
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C.
Barium
-
D.
Thorium
Solution
Plutonium is a member of the actinide series, which includes elements with atomic numbers 89 to 103.
Correct Answer: B — Plutonium
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Q. Which of the following elements is a metalloid in the p-block?
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A.
Boron
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B.
Aluminium
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C.
Gallium
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D.
Indium
Solution
Boron is classified as a metalloid in the p-block.
Correct Answer: A — Boron
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Q. Which of the following elements is a metalloid in the p-block? (2022) 2022
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A.
Boron
-
B.
Aluminium
-
C.
Gallium
-
D.
Indium
Solution
Boron is classified as a metalloid in the p-block elements.
Correct Answer: A — Boron
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Q. Which of the following elements is a metalloid?
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A.
Boron
-
B.
Sodium
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C.
Calcium
-
D.
Chlorine
Solution
Boron is classified as a metalloid in the periodic table.
Correct Answer: A — Boron
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Q. Which of the following elements is a noble gas?
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A.
Helium
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B.
Hydrogen
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C.
Oxygen
-
D.
Nitrogen
Solution
Helium is a noble gas, located in Group 18 of the periodic table.
Correct Answer: A — Helium
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Q. Which of the following elements is a noble gas? (2021) 2021
-
A.
Oxygen
-
B.
Nitrogen
-
C.
Neon
-
D.
Hydrogen
Solution
Neon is a noble gas, which is characterized by its lack of reactivity.
Correct Answer: C — Neon
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Q. Which of the following elements is a p-block element?
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A.
Calcium
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B.
Sodium
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C.
Bromine
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D.
Iron
Solution
Bromine is a p-block element as it is located in group 17 of the periodic table.
Correct Answer: C — Bromine
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Q. Which of the following elements is a p-block element? (2021) 2021
-
A.
Sodium
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B.
Calcium
-
C.
Aluminium
-
D.
Iron
Solution
Aluminium (Al) is in group 13 of the periodic table, which is classified as a p-block element.
Correct Answer: C — Aluminium
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Q. Which of the following elements is a part of the actinide series?
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A.
Lanthanum (La)
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B.
Cerium (Ce)
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C.
Uranium (U)
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D.
Neodymium (Nd)
Solution
Uranium (U) is a part of the actinide series, which consists of elements with atomic numbers from 89 to 103.
Correct Answer: C — Uranium (U)
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Q. Which of the following elements is a transition metal?
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A.
Zinc
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B.
Aluminum
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C.
Calcium
-
D.
Sodium
Solution
Zinc is classified as a transition metal.
Correct Answer: A — Zinc
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Q. Which of the following elements is an s-block element?
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A.
Boron
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B.
Sodium
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C.
Aluminum
-
D.
Carbon
Solution
Sodium (Na) is an s-block element as it is in Group 1 of the periodic table.
Correct Answer: B — Sodium
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Q. Which of the following elements is found in Group 17?
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A.
Oxygen
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B.
Fluorine
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C.
Sodium
-
D.
Calcium
Solution
Fluorine is a halogen and is found in Group 17 of the periodic table.
Correct Answer: B — Fluorine
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Q. Which of the following elements is found in period 3?
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A.
Sodium
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B.
Calcium
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C.
Potassium
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D.
Magnesium
Solution
Sodium is in period 3 of the periodic table.
Correct Answer: A — Sodium
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Q. Which of the following elements is known for forming complex ions?
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A.
Calcium
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B.
Copper
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C.
Sodium
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D.
Magnesium
Solution
Copper (Cu) is known for forming complex ions due to its ability to coordinate with ligands.
Correct Answer: B — Copper
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Q. Which of the following elements is known for its catalytic properties?
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A.
Copper
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B.
Iron
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C.
Platinum
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D.
Zinc
Solution
Platinum (Pt) is widely known for its catalytic properties in various chemical reactions.
Correct Answer: C — Platinum
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Q. Which of the following elements is likely to have a half-filled p subshell?
Solution
Nitrogen (N) has the configuration 1s2 2s2 2p3, which has a half-filled p subshell.
Correct Answer: A — N
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Q. Which of the following elements is most likely to form a +1 ion?
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A.
Calcium
-
B.
Potassium
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C.
Aluminum
-
D.
Bromine
Solution
Potassium is an alkali metal and typically forms a +1 ion.
Correct Answer: B — Potassium
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Q. Which of the following elements is most likely to form a cation?
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A.
Fluorine
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B.
Sodium
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C.
Chlorine
-
D.
Oxygen
Solution
Sodium is an alkali metal and readily loses an electron to form a cation.
Correct Answer: B — Sodium
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Q. Which of the following elements is most likely to form a covalent bond? (2023)
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A.
Sodium
-
B.
Chlorine
-
C.
Calcium
-
D.
Potassium
Solution
Chlorine (Cl) is a non-metal and is most likely to form covalent bonds.
Correct Answer: B — Chlorine
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Q. Which of the following elements is most likely to form an anion? (2023)
-
A.
Boron
-
B.
Carbon
-
C.
Fluorine
-
D.
Aluminum
Solution
Fluorine (F) is highly electronegative and readily forms anions (F-).
Correct Answer: C — Fluorine
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Q. Which of the following elements is most likely to form an ionic bond? (2023)
-
A.
Carbon
-
B.
Oxygen
-
C.
Sodium
-
D.
Nitrogen
Solution
Sodium is most likely to form an ionic bond as it readily loses an electron to form Na+.
Correct Answer: C — Sodium
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Q. Which of the following elements is most likely to form an ionic bond? (2023) 2023
-
A.
Carbon
-
B.
Oxygen
-
C.
Sodium
-
D.
Nitrogen
Solution
Sodium is most likely to form an ionic bond as it readily loses an electron to form Na+.
Correct Answer: C — Sodium
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Q. Which of the following elements is most likely to form covalent bonds? (2023)
-
A.
Sodium
-
B.
Magnesium
-
C.
Chlorine
-
D.
Aluminum
Solution
Chlorine (Cl) is a non-metal and tends to form covalent bonds.
Correct Answer: C — Chlorine
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Q. Which of the following elements is not a metalloid?
-
A.
Silicon
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B.
Boron
-
C.
Germanium
-
D.
Aluminum
Solution
Aluminum is a metal, while silicon, boron, and germanium are metalloids.
Correct Answer: D — Aluminum
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