Question : Identify an anomaly element that belongs to both Group 1 and Group 17.
Option 1: Oxygen
Option 2: Hydrogen
Option 3: Chlorine
Option 4: Nitrogen
Correct Answer: Hydrogen
Solution : The correct answer is Hydrogen.
There is an unusual occurrence in the Modern Periodic table concerning the position of Hydrogen (H). During the first period, Hydrogen can be found in either Group 1 or Group 17. Group 1, known as the alkali metals, is formed when Hydrogen reacts with halogens. However, to be included in Group 17 - the halogen group, Hydrogen must also be considered a diatomic molecule because it can form ionic compounds with metals.
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Question : Ozone consists of which of the following?
Option 1: Oxygen only
Option 2: Oxygen and Nitrogen
Option 3: Hydrogen and Carbon
Option 4: Oxygen and Carbon
Question : The most abundant element is
Option 1: Calcium
Option 2: Silicon
Option 3: Oxygen
Question : Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?
Option 1: Helium
Option 2: Nitrogen
Option 4: Hydrogen
Question : In which element group of the periodic table are fluorine, chlorine, bromine and iodine included?
Option 1: Actinides
Option 2: Chalcogen
Option 3: Lanthanides
Option 4: Halogens
Question : What is the ratio by mass of nitrogen and hydrogen in ammonia?
Option 1: 11:1
Option 2: 14:3
Option 3: 11:3
Option 4: 14:1
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile