MCQs on Periodic Table
by Yogi P - January 19, 2025
MCQs on Periodic Table
Q 1: Which element has the atomic number 1?
- A Hydrogen
- B Helium
- C Lithium
- D Oxygen
Answer: (A) Hydrogen
Q 3: Which element is known as the “King of Chemicals”?
- A Sulfuric Acid
- B Sodium
- C Chlorine
- D Sulfur
Answer: (A) Sulfuric Acid
Q 4: Which element has the atomic number 8?
- A Nitrogen
- B Oxygen
- C Carbon
- D Neon
Answer: (B) Oxygen
Q 6: Which element is represented by the symbol “Au”?
- A Silver
- B Gold
- C Aluminum
- D Argon
Answer: (B) Gold
Q 8: Which of the following elements is a noble gas?
- A Helium
- B Nitrogen
- C Oxygen
- D Boron
Answer: (A) Helium
Q 9: Which element is liquid at room temperature?
- A Mercury
- B Gold
- C Lead
- D Zinc
Answer: (A) Mercury
Q 10: What is the heaviest naturally occurring element?
- A Uranium
- B Plutonium
- C Osmium
- D Lead
Answer: (A) Uranium
Q 11: Which element is known as “quick silver”?
- A Mercury
- B Silver
- C Platinum
- D Chromium
Answer: (A) Mercury
Q 12: Which group of elements is also known as Alkali Metals?
- A Group 1
- B Group 2
- C Group 16
- D Group 18
Answer: (A) Group 1
Q 13: Which element has the highest electronegativity?
- A Fluorine
- B Oxygen
- C Nitrogen
- D Chlorine
Answer: (A) Fluorine
Q 14: Which element is the most abundant in the Earth’s crust?
- A Oxygen
- B Silicon
- C Aluminum
- D Iron
Answer: (A) Oxygen
Q 15: What is the symbol for the element Iron?
- A Ir
- B Fe
- C In
- D I
Answer: (B) Fe
Q 17: Which element is the lightest?
- A Hydrogen
- B Helium
- C Lithium
- D Beryllium
Answer: (A) Hydrogen
Q 18: Which element is used in making batteries?
- A Lithium
- B Calcium
- C Iron
- D Nickel
Answer: (A) Lithium
Q 19: Which element has the symbol “Pb”?
- A Phosphorus
- B Platinum
- C Lead
- D Palladium
Answer: (C) Lead
Q 20: Which element is most abundant in the Sun?
- A Helium
- B Oxygen
- C Hydrogen
- D Carbon
Answer: (C) Hydrogen
Q 21: What is the atomic number of Carbon?
- A 6
- B 8
- C 10
- D 12
Answer: (A) 6
Q 22: Which element is known for its use in disinfectants and bleaches?
- A Sulfur
- B Chlorine
- C Iodine
- D Fluorine
Answer: (B) Chlorine
Q 23: Which element is used in making filaments for light bulbs?
- A Tungsten
- B Iron
- C Copper
- D Silver
Answer: (A) Tungsten
Q 24: Which element is called “Brimstone” in ancient texts?
- A Sulfur
- B Phosphorus
- C Iron
- D Lead
Answer: (A) Sulfur
Q 25: What is the symbol for the element Tin?
- A Sn
- B Ti
- C Tn
- D Te
Answer: (A) Sn
Q 26: Which element is used to make jewelry and has the symbol “Ag”?
- A Silver
- B Gold
- C Platinum
- D Aluminum
Answer: (A) Silver
Q 27: Which element has the atomic number 92?
- A Uranium
- B Plutonium
- C Radium
- D Thorium
Answer: (A) Uranium
Q 28: Which element is commonly found in table salt?
- A Sodium
- B Potassium
- C Calcium
- D Chlorine
Answer: (A) Sodium
Q 29: Which element is used in thermometers and barometers?
- A Mercury
- B Copper
- C Iron
- D Lead
Answer: (A) Mercury
Q 30: What is the symbol for the element Phosphorus?
- A Ph
- B Po
- C P
- D Pt
Answer: (C) P
Q 31: Which element is known as the “builder of life”?
- A Carbon
- B Oxygen
- C Nitrogen
- D Phosphorus
Answer: (A) Carbon
Q 32: Which element has the symbol “Kr”?
- A Krypton
- B Potassium
- C Radon
- D Rubidium
Answer: (A) Krypton
Q 33: What is the atomic number of Neon?
- A 8
- B 10
- C 12
- D 14
Answer: (B) 10
Q 34: Which element is a component of bones and teeth?
- A Calcium
- B Magnesium
- C Iron
- D Phosphorus
Answer: (A) Calcium
Q 35: Which element is found in chlorophyll and helps plants photosynthesize?
- A Magnesium
- B Iron
- C Nitrogen
- D Sulfur
Answer: (A) Magnesium
Q 36: What is the atomic number of Nitrogen?
- A 5
- B 6
- C 7
- D 8
Answer: (C) 7
Q 37: Which element has the symbol “Au”?
- A Silver
- B Gold
- C Aluminum
- D Platinum
Answer: (B) Gold
Q 38: Which noble gas is used in neon signs?
- A Argon
- B Helium
- C Neon
- D Krypton
Answer: (C) Neon
Q 39: Which element has the atomic number 1?
- A Helium
- B Lithium
- C Oxygen
- D Hydrogen
Answer: (D) Hydrogen
Q 40: Which element is commonly used in fireworks to produce a red color?
- A Strontium
- B Magnesium
- C Potassium
- D Copper
Answer: (A) Strontium
Q 41: Which element has the symbol “Na”?
- A Sodium
- B Nitrogen
- C Nickel
- D Neon
Answer: (A) Sodium
Q 43: Which element is known as “quick silver”?
- A Mercury
- B Silver
- C Lead
- D Platinum
Answer: (A) Mercury
Q 44: Which element is the main component of diamonds?
- A Carbon
- B Silicon
- C Graphite
- D Boron
Answer: (A) Carbon
Q 45: Which element is essential for the formation of hemoglobin in blood?
- A Calcium
- B Iron
- C Copper
- D Zinc
Answer: (B) Iron
Q 46: Which alkaline earth metal has the symbol “Mg”?
- A Magnesium
- B Manganese
- C Mercury
- D Molybdenum
Answer: (A) Magnesium
Q 47: What is the symbol for Potassium?
- A P
- B K
- C Pt
- D Po
Answer: (B) K
Q 48: Which element is a gas at room temperature?
- A Bromine
- B Sulfur
- C Oxygen
- D Aluminum
Answer: (C) Oxygen
Q 49: Which element is used in making stainless steel?
- A Chromium
- B Copper
- C Nickel
- D Zinc
Answer: (A) Chromium
Q 50: Which element has the highest melting point?
- A Tungsten
- B Iron
- C Platinum
- D Carbon
Answer: (A) Tungsten
Q 51: Which element has the symbol “Cl”?
- A Calcium
- B Chlorine
- C Copper
- D Cobalt
Answer: (B) Chlorine
Q 52: Which element is commonly used in the production of glass?
- A Silicon
- B Boron
- C Sodium
- D Phosphorus
Answer: (A) Silicon
Q 53: Which element is most abundant in the Earth’s crust?
- A Oxygen
- B Silicon
- C Iron
- D Aluminum
Answer: (A) Oxygen
Q 54: Which element has the atomic number 79?
- A Platinum
- B Gold
- C Mercury
- D Uranium
Answer: (B) Gold
Q 55: Which halogen has the highest atomic number?
- A Fluorine
- B Chlorine
- C Bromine
- D Iodine
Answer: (D) Iodine
Summary of Correct Answers
- Atomic number 1 – Correct (Hydrogen is the first element).
- Symbol for Sodium – Correct (Na is Sodium’s symbol).
- “King of Chemicals” – Partially correct (Sulfuric Acid is considered the “King of Chemicals” but not an element better phrasing: “Which chemical is known as the King of Chemicals?”).
- Atomic number 8 – Correct (Oxygen has an atomic number of 8).
- Atomic mass of Carbon – Correct (12 is Carbon’s atomic mass).
- Symbol for “Au” – Correct (Gold is represented by “Au”).
- Symbol for Potassium – Correct (K is Potassium’s symbol).
- Noble gas – Correct (Helium is a noble gas).
- Liquid at room temperature – Correct (Mercury is liquid at room temperature).
- Heaviest naturally occurring element – Correct (Uranium is the heaviest naturally occurring element).
- Quick silver – Correct (Mercury is known as quick silver).
- Alkali Metals – Correct (Group 1 elements are alkali metals).
- Highest electronegativity – Correct (Fluorine has the highest electronegativity).
- Abundance in Earth’s crust – Correct (Oxygen is most abundant in the Earth’s crust).
- Symbol for Iron – Correct (Fe represents Iron).
- Atomic number of Helium – Correct (2 is Helium’s atomic number).
- Lightest element – Correct (Hydrogen is the lightest element).
- Used in batteries – Correct (Lithium is used in batteries).
- Symbol “Pb” – Correct (Lead is “Pb”).
- Most abundant in Sun – Correct (Hydrogen is most abundant in the Sun).
- Atomic number of Carbon – Correct (6 is the atomic number of Carbon).
- Disinfectants and bleaches – Correct (Chlorine is used for this purpose).
- Filaments for light bulbs – Correct (Tungsten is used in filaments).
- Brimstone in ancient texts – Correct (Sulfur is referred to as Brimstone).
- Symbol for Tin – Correct (Sn is Tin’s symbol).
- Symbol for Silver – Correct (Ag is Silver’s symbol).
- Atomic number 92 – Correct (Uranium is atomic number 92).
- Common in table salt – Correct (Sodium is present in salt as NaCl).
- Thermometers/barometers – Correct (Mercury is used in these instruments).
- Symbol for Phosphorus – Correct (P is Phosphorus’ symbol).
- Builder of life – Correct (Carbon is foundational to life).
- Symbol “Kr” – Correct (Krypton is “Kr”).
- Atomic number of Neon – Correct (10 is Neon’s atomic number).
- Component of bones/teeth – Correct (Calcium is essential).
- Photosynthesis (Chlorophyll) – Correct (Magnesium is vital in chlorophyll).
- Atomic number of Nitrogen – Correct (7 is Nitrogen’s atomic number).
- Symbol “Au” – Correct (Gold is “Au”).
- Neon signs – Correct (Neon is used in neon signs).
- Atomic number 1 (again) – Correct (Hydrogen).
- Fireworks (red color) – Correct (Strontium produces red color).
- Symbol “Na” (again) – Correct (Sodium).
- Atomic number of Oxygen – Correct (8 is Oxygen’s atomic number).
- Quick silver (again) – Correct (Mercury).
- Component of diamonds – Correct (Carbon forms diamonds).
- Hemoglobin formation – Correct (Iron is essential for hemoglobin).
- Symbol “Mg” – Correct (Magnesium is “Mg”).
- Symbol for Potassium – Correct (K is Potassium’s symbol).
- Gas at room temperature – Correct (Oxygen is a gas).
- Stainless steel production – Correct (Chromium is used in stainless steel).
- Highest melting point – Correct (Tungsten has the highest melting point).
- Symbol “Cl” – Correct (Chlorine is “Cl”).
- Used in glass production – Correct (Silicon is used in glass).
- Abundance in Earth’s crust (again) – Correct (Oxygen).
- Atomic number 79 – Correct (Gold is 79).
- Highest atomic number (halogen) – Correct (Iodine).
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