Free s-Block and p-Block Elements MCQs with Answers
1,359 s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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1,359 questions · page 23 of 68
- A. s-Block
- B. p-Block
- C. d-Block
- D. f-Block
Explanation: Lanthanum is classified as a d-block element because its electron configuration ends with a d orbital (5d1).
Correct answer: d-Block- A. s-Block
- B. p-Block
- C. d-Block
- D. f-Block
Explanation: The d-block of the periodic table, also known as the transition metals block, contains the maximum number of metals.
Correct answer: d-Block- A. s-Block
- B. p-Block
- C. d-Block
- D. f-Block
Explanation: The given electronic configuration ends with 5d¹, indicating that the last electron is added to the d subshell, which characterizes…
Correct answer: d-Block- A. Atomic number
- B. Atomic mass
- C. Principal quantum number
- D. Azimuthal quantum number
Explanation: The correct answer is the Principal quantum number. In the modern periodic table, the period number of an element corresponds to the…
Correct answer: Principal quantum number- A. P
- B. As
- C. Sb
- D. Bi
Explanation: The metallic character of elements increases down a group in the periodic table because the atoms become larger and more willing to lose…
Correct answer: Bi- A. Li
- B. Na
- C. F
- D. N
Explanation: Sodium (Na) is considered a typical element because it is a part of the alkali metals in Group 1 of the periodic table.
Correct answer: Na- A. Be
- B. CI
- C. K
- D. P.
Explanation: The concept of bridge elements refers to elements that show a diagonal relationship between the second and third periods of the periodic…
Correct answer: Be- A. IIA
- B. IIIA
- C. VIIA
- D. 0
Explanation: The correct answer is Group IIA. This group is known as the alkaline earth metals and includes elements such as beryllium, magnesium, and…
Correct answer: IIA- A. IIA
- B. IVA
- C. VIA
- D. VIIA
Explanation: The correct answer is Group VIIA, which is composed entirely of non-metals known as the halogens.
Correct answer: VIIA- A. Li+
- B. B3+
- C. F-
- D. O2-
Explanation: The ionic radius is influenced by the charge on the ion. When an atom loses electrons to form a cation, like Li+ and B3+, the ionic radius…
Correct answer: O2-- A. Actinide series
- B. Lanthanide series
- C. Alkaline-earth metals
- D. Chalcogens.
Explanation: Radium is classified as an alkaline-earth metal, which is a group of elements in Group 2 of the periodic table characterized by their…
Correct answer: Alkaline-earth metals- A. Neon
- B. Krypton
- C. Xenon
- D. All of them form no compound.
Explanation: The correct answer is Neon. Neon is a noble gas that is known for its complete lack of chemical reactivity, making it highly unlikely to…
Correct answer: Neon- A. Ionic radii
- B. Atomic radii
- C. Polarizing power
- D. Atomic volume
Explanation: Lithium and magnesium exhibit a diagonal relationship primarily due to their similar polarizing power.
Correct answer: Polarizing power- A. Metal
- B. Non-metal
- C. Noble gas
- D. Metalloid
Explanation: The electronic configuration given is 1s2, 2s2, 2p6, 3s2, 3p6, 3d10, 4s2.
Correct answer: Metal- A. Fourth
- B. Seventh
- C. Sixth
- D. Fifth
Explanation: The sixth period of the periodic table is the longest, containing 32 elements.
Correct answer: Sixth- A. 14
- B. 15
- C. 16
- D. 13
Explanation: The elements known as chalcogens are found in Group 16 of the periodic table.
Correct answer: 16- A. Sulphur
- B. Selenium
- C. Tellurium
- D. All are chalcogens
Explanation: The correct answer is Option D: 'All are chalcogens.' Chalcogens are the elements in Group 16 of the periodic table.
Correct answer: All are chalcogens- A. C, Si, Ga, Sn
- B. Cl, Br, I, At
- C. N, P, As, Sb
- D. He, Ne, Ar, Kr.
Explanation: The correct answer is Option A: C, Si, Ga, Sn. In the Periodic Table, elements in the same group share similar properties.
Correct answer: C, Si, Ga, Sn- A. 14
- B. 15
- C. 13
- D. 16
Explanation: An element with a half-filled 4p subshell belongs to Group 15 of the periodic table.
Correct answer: 15- A. 1s2, 2s2 2p3
- B. 1s2, 2s2, 2p1
- C. 1s2, 2s2, 2p6, 3s2, 3p2
- D. 1s2, 2s2, 2p4
Explanation: The correct answer is Option B: 1s2, 2s2, 2p1 . This electronic configuration represents the core and valence electrons of a group 13…
Correct answer: 1s2, 2s2, 2p1