भू-कवचातील दुसरे सर्वाधिक मुबलक मूलद्रव्य कोणते आहे?

This question was previously asked in
NTPC CBT 2 2016 Previous Paper 5 (Held On: 18 Jan 2017 Shift 2)
View all RRB NTPC Papers >
  1. ऑक्सिजन
  2. कार्बन
  3. सिलिकॉन
  4. हायड्रोजन

Answer (Detailed Solution Below)

Option 3 : सिलिकॉन
Free
RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
5.5 Lakh Users
100 Questions 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

योग्य उत्तर सिलिकॉन आहे.

  • ऑक्सिजन हे भू-कवचातील सर्वाधिक मुबलक मूलद्रव्य आहे तर सिलिकॉन हे दुसर्‍या क्रमांकाचे मूलद्रव्य आहे.
  • सिलिकॉन आणि ऑक्सिजनचे संयुग, जे सिलिका आहे, हे भू-कवचापैकी 60% आहे.

भू-कवचातील सर्वाधिक मुलद्रव्यांची मुबलकता:

मूलद्रव्य टक्केवारी अणू अंक (Z)
ऑक्सिजन 46.1% 8
सिलिकॉन 28.2% 14
ल्युमिनियम 8.23% 13
लोह 5.63% 26
कॅल्शियम 4.15% 20
हायड्रोजन 0.140% 1
कार्बन 0.0200% 6
Latest RRB NTPC Updates

Last updated on Jun 27, 2025

-> RRB NTPC Under Graduate Exam Date 2025 will be out soon on the official website of the Railway Recruitment Board. 

-> RRB NTPC Exam Analysis 2025 is LIVE now. All the candidates appearing for the RRB NTPC Exam 2025 can check the complete exam analysis to strategize their preparation accordingly. 

-> The RRB NTPC Admit Card will be released on its official website for RRB NTPC Under Graduate Exam 2025.

-> Candidates who will appear for the RRB NTPC Exam can check their RRB NTPC Time Table 2025 from here. 

-> The RRB NTPC 2025 Notification released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts like Commercial Cum Ticket Clerk, Accounts Clerk Cum Typist, Junior Clerk cum Typist & Trains Clerk.

-> A total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC) such as Junior Clerk cum Typist, Accounts Clerk cum Typist, Station Master, etc.

-> Prepare for the exam using RRB NTPC Previous Year Papers.

-> Get detailed subject-wise UGC NET Exam Analysis 2025 and UGC NET Question Paper 2025 for shift 1 (25 June) here

More Geography (World Geography) Questions

Get Free Access Now
Hot Links: teen patti gold apk teen patti party teen patti game online teen patti royal - 3 patti teen patti master 2023