Which of the following is a covalent compound?

This question was previously asked in
RRB Technician Grade III Official Paper (Held On: 29 Dec, 2024 Shift 3)
View all RRB Technician Papers >
  1. MgO 
  2. MgCl2
  3. Nacl 
  4. CH4

Answer (Detailed Solution Below)

Option 4 : CH4
Free
General Science for All Railway Exams Mock Test
20 Qs. 20 Marks 15 Mins

Detailed Solution

Download Solution PDF

The Correct answer is CH4.

Key Points

  • CH4 stands for methane, which is a simple covalent compound.
  • It consists of one carbon atom bonded to four hydrogen atoms through covalent bonds.
  • Covalent bonds are formed when atoms share electrons.
  • Methane is a major component of natural gas and is used as a fuel.
  • It is also a significant greenhouse gas contributing to global warming.
  • Methane is produced naturally by processes such as decomposition of organic matter.

 Additional Information

  • MgO
    • Magnesium oxide (MgO) is an ionic compound.
    • It consists of magnesium and oxygen ions held together by strong electrostatic forces.
    • It is used in various applications like refractory materials, electrical insulation, and as a dietary supplement.
  • MgCl2
    • Magnesium chloride (MgCl2) is another example of an ionic compound.
    • It consists of magnesium and chlorine ions.
    • MgCl2 is often used for de-icing roads and as a coagulant in water treatment.
  • NaCl
    • Sodium chloride (NaCl) is commonly known as table salt.
    • It is an ionic compound made up of sodium and chloride ions.
    • NaCl is widely used in food for seasoning and preservation.

Latest RRB Technician Updates

Last updated on Jun 30, 2025

-> The RRB Technician Notification 2025 have been released under the CEN Notification - 02/2025.

-> As per the Notice, around 6238 Vacancies is  announced for the Technician 2025 Recruitment. 

-> The Online Application form for RRB Technician will be open from 28th June 2025 to 28th July 2025. 

-> The Pay scale for Railway RRB Technician posts ranges from Rs. 19900 - 29200.

-> Prepare for the exam with RRB Technician Previous Year Papers.

-> Candidates can go through RRB Technician Syllabus and practice for RRB Technician Mock Test.

Hot Links: teen patti master 2025 teen patti joy teen patti gold downloadable content