Preparing for the Joint Entrance Exam (JEE) can be a daunting task. With so many subjects to cover and so many topics to study, it can be challenging to know where to start. One essential topic in the JEE Mains syllabus is the Some p-Block Elements. In this article, we will provide 50+ MCQ questions on the Some p-Block Elements, along with detailed solutions to help you prepare for the JEE Mains exam.
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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand Some p-Block Elements JEE Mains MCQ Questions with Answers.
Some p-Block Elements JEE Mains MCQ
The most abundant element in the p-block of the periodic table is: a) Carbon b) Nitrogen c) Oxygen d) Silicon
Answer: d) Silicon
Explanation: Silicon is the most abundant element in the p-block of the periodic table, making up a significant portion of the Earth’s crust.
Which of the following oxides is amphoteric in nature? a) CO2 b) SO2 c) Al2O3 d) NO2
Answer: c) Al2O3
Explanation: Aluminum oxide (Al2O3) exhibits amphoteric behavior, as it can react both as an acid and a base, depending on the reaction conditions.
The compound PCl5 exists in which of the following hybridization states? a) sp b) sp2 c) sp3 d) sp3d
Answer: d) sp3d
Explanation: PCl5 exhibits sp3d hybridization, with phosphorus forming five sigma bonds with chlorine atoms and having one lone pair of electrons.
Which of the following elements exhibits the highest oxidation state? a) Nitrogen b) Phosphorus c) Arsenic d) Antimony
Answer: d) Antimony
Explanation: Antimony (Sb) exhibits the highest oxidation state (+5) among the given elements, as it can lose all its valence electrons.
Which of the following compounds is used as a rocket propellant? a) Ammonium nitrate b) Sodium nitrate c) Potassium nitrate d) Calcium nitrate
Answer: a) Ammonium nitrate
Explanation: Ammonium nitrate (NH4NO3) is commonly used as a rocket propellant due to its high oxygen content and stability.
The element that shows the highest positive oxidation state is: a) Nitrogen b) Phosphorus c) Sulphur d) Chlorine
Answer: a) Nitrogen
Explanation: Nitrogen exhibits the highest positive oxidation state (+5) in compounds like N2O5 and HNO3.
Which of the following elements has the largest atomic radius? a) Carbon b) Nitrogen c) Oxygen d) Sulfur
Answer: d) Sulfur
Explanation: Sulfur has the largest atomic radius among the given elements due to its position in the same period as oxygen but having more electrons.
The major component of biogas is: a) Methane b) Ethane c) Propane d) Butane
Answer: a) Methane
Explanation: Methane (CH4) is the major component of biogas, which is produced by the anaerobic decomposition of organic matter.
Which of the following compounds is used as a refrigerant? a) Chloroform b) Carbon tetrachloride c) Freon d) Ethylene dichloride
Answer: c) Freon
Explanation: Freon, specifically chlorofluorocarbons (CFCs), is used as a refrigerant due to its low boiling point and non-toxic nature.
The oxide of which element is used as a bleaching agent? a) Nitrogen b) Phosphorus c) Sulfur d) Chlorine
Answer: d) Chlorine
Explanation: The oxide of chlorine (Cl2O) is used as a bleaching agent, particularly in the paper and textile industries.
Which of the following elements is known for its allotropes, including diamond and graphite? a) Carbon b) Nitrogen c) Oxygen d) Silicon
Answer: a) Carbon
Explanation: Carbon is known for its allotropes, including diamond (covalent network) and graphite (layered structure).
The element that forms the largest number of compounds is: a) Nitrogen b) Phosphorus c) Sulfur d) Chlorine
Answer: d) Chlorine
Explanation: Chlorine forms the largest number of compounds due to its high electronegativity and ability to readily undergo chemical reactions.
The gas used for the preparation of bleaching powder is: a) Carbon dioxide b) Sulfur dioxide c) Chlorine d) Ammonia
Answer: c) Chlorine
Explanation: Chlorine gas (Cl2) is used for the preparation of bleaching powder (CaOCl2) through the reaction with calcium hydroxide.
Which of the following elements is commonly used in the manufacture of matches? a) Phosphorus b) Sulfur c) Iodine d) Bromine
Answer: a) Phosphorus
Explanation: Phosphorus is commonly used in the manufacture of matches, specifically red phosphorus, which is a safer form compared to white phosphorus.
Which of the following elements exhibits the highest electron affinity? a) Carbon b) Nitrogen c) Oxygen d) Fluorine
Answer: d) Fluorine
Explanation: Fluorine exhibits the highest electron affinity among the given elements due to its strong nuclear charge and small atomic size.
Which compound is commonly used as a dehydrating agent in organic synthesis? a) Phosphorus pentoxide b) Sulfuric acid c) Sodium hydroxide d) Potassium permanganate
Answer: a) Phosphorus pentoxide
Explanation: Phosphorus pentoxide (P2O5) is commonly used as a dehydrating agent in organic synthesis to remove water from reactions.
The element used in the vulcanization of rubber is: a) Sulfur b) Selenium c) Silicon d) Silver
Answer: a) Sulfur
Explanation: Sulfur is used in the vulcanization of rubber, where it forms cross-links between polymer chains to improve its elasticity and durability.
The most stable allotrope of phosphorus is: a) White phosphorus b) Red phosphorus c) Black phosphorus d) Yellow phosphorus
Answer: b) Red phosphorus
Explanation: Red phosphorus is the most stable allotrope of phosphorus and is less reactive and more thermally stable than white phosphorus.
The element used in the production of fertilizers is: a) Nitrogen b) Phosphorus c) Sulfur d) Potassium
Answer: b) Phosphorus
Explanation: Phosphorus is used in the production of fertilizers due to its role in promoting plant growth and development.
Which of the following elements is known for exhibiting catenation? a) Carbon b) Nitrogen c) Oxygen d) Silicon
Answer: a) Carbon
Explanation: Carbon is known for exhibiting catenation, the ability to form strong covalent bonds with other carbon atoms, leading to the formation of long chains and diverse organic compounds.
The element used in the manufacture of glass is: a) Boron b) Nitrogen c) Oxygen d) Silicon
Answer: d) Silicon
Explanation: Silicon is used in the manufacture of glass, specifically silica (SiO2), which is the main component of most types of glass.
Which of the following compounds is used as a preservative in pickles? a) Nitric acid b) Sulfuric acid c) Acetic acid d) Hydrochloric acid
Answer: c) Acetic acid
Explanation: Acetic acid (CH3COOH) is commonly used as a preservative in pickles, inhibiting the growth of bacteria and fungi.
The halogen that is a liquid at room temperature is: a) Fluorine b) Chlorine c) Bromine d) Iodine
Answer: c) Bromine
Explanation: Bromine (Br2) is a halogen that is a liquid at room temperature, unlike fluorine, chlorine, and iodine.
Which of the following compounds is used in the production of fertilizers and explosives? a) Ammonium nitrate b) Sodium nitrate c) Potassium nitrate d) Calcium nitrate
Answer: a) Ammonium nitrate
Explanation: Ammonium nitrate (NH4NO3) is used in the production of fertilizers and explosives due to its high nitrogen content.
The element used in the production of semiconductors is: a) Carbon b) Silicon c) Germanium d) Selenium
Answer: b) Silicon
Explanation: Silicon is commonly used in the production of semiconductors due to its unique electronic properties and abundance.
Which of the following elements is used in the production of stainless steel? a) Carbon b) Nitrogen c) Chromium d) Manganese
Answer: c) Chromium
Explanation: Chromium is used in the production of stainless steel due to its ability to form a protective oxide layer, enhancing corrosion resistance.
The compound used as an antiseptic and disinfectant is: a) Hydrogen peroxide b) Sodium chloride c) Potassium permanganate d) Potassium iodide
Answer: c) Potassium permanganate
Explanation: Potassium permanganate (KMnO4) is used as an antiseptic and disinfectant due to its strong oxidizing properties.
Which of the following compounds is commonly used in photography? a) Silver bromide b) Sodium chloride c) Potassium permanganate d) Potassium iodide
Answer: a) Silver bromide
Explanation: Silver bromide (AgBr) is commonly used in photography as a light-sensitive material, forming the basis of photographic film.
The gas released during the preparation of bleaching powder is: a) Oxygen b) Carbon dioxide c) Chlorine d) Ammonia
Answer: c) Chlorine
Explanation: Chlorine gas (Cl2) is released during the preparation of bleaching powder, which occurs through the reaction of chlorine with calcium hydroxide.
Which of the following elements is commonly used in the production of paints and pigments? a) Carbon b) Nitrogen c) Oxygen d) Lead
Answer: d) Lead
Explanation: Lead is commonly used in the production of paints and pigments, particularly lead-based pigments, although its usage has decreased due to environmental concerns.
We hope there JEE MCQ of Class 11 Some p-Block Elements will help you to score an excellent rank in JEE Mains and Advanced. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
