• Engineering and Architecture
  • Management and Business Administration
  • Medicine and Allied Sciences
  • Law
  • Animation and Design
  • Media, Mass Communication and Journalism
  • Finance & Accounts
  • Computer Application and IT
  • Pharmacy
  • Hospitality and Tourism
  • Competition
  • School
  • Study Abroad
  • Arts, Commerce & Sciences
  • Learn
  • Online Courses and Certifications
JEE Main Marks vs Percentile vs Rank 2025 - Calculate Percentile & Rank using Marks
  1. Home
  2. JEE Main
  3. Study Material
  4. Orthoboric Acid - Practice Questions & MCQ

Orthoboric Acid - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main

Quick Facts

  • 15 Questions around this concept.

Solve by difficulty

QuestionEASY

Boric acid is polymeric due to 

View Solution

Boric acid is an acid because its molecule:

View Solution

Which compound is obtained on red heat of orthoboric acid?

View Solution

Boric Acid is used - 

View Solution

Boric acid is an acid because its molecule

View Solution

Concepts Covered - 0

Orthoboric Acid

Orthoboric acid, H3BO3 is a white crystalline solid, with soapy touch. It is sparingly soluble in water but highly soluble in hot water. It can be prepared by acidifying an aqueous solution of borax.

\mathrm{Na_{2}B_{4}O_{7}\: +\: 2HCl\: +\: 5H_{2}O\: \rightarrow 2NaCl\: +\: 4B(OH)_{3}}

It is also formed by the hydrolysis (reaction with water or dilute acid) of most boron compounds (halides, hydrides, etc.). It has a layer structure in which planar BO3 units are joined by hydrogen bonds as shown in the figure given below. 
Boric acid is a weak monobasic acid. It is not a protonic acid but acts as a Lewis acid by accepting electrons from a hydroxyl ion:

\mathrm{BOH_{3}\: +\: 2HOH\: \rightarrow \: [B(OH)]^{-}\: +\: H_{3}O^{+}}

On heating, orthoboric acid above 370K forms metaboric acid, \mathrm{HBO_2} which on further heating yields boric oxide, \mathrm{B_2O_3}.

\mathrm{H_{3}BO_{3}\: \overset{\Delta }{\rightarrow}\: HBO_{2}\: \overset{\Delta }{\rightarrow}\: B_{2}O_{3}}

Study other Related Concepts

Orthoboric Acid Current Topic

Physical Properties of Boron Family
Anomalous Behaviour of Boron
Diagonal Relationship of B and Si
Chemical Properties of Boron Family
Diborane
Orthoboric Acid
Borax Formula
Group 14 Elements (Carbon Family)
Allotropes of Carbon
Carbon monoxide and carbon dioxide

"Stay in the loop. Receive exam news, study resources, and expert advice!"

Get Answer to all your questions

JEE Main Articles

Engineering Colleges Accepting JEE Main rank 65,000 to 80,000
Feb 19, 2025
Engineering Colleges Accepting JEE Main Rank 50000 to 65000
Feb 19, 2025
List of Engineering colleges accepting 98 Percentile in JEE Main 2025
Feb 19, 2025
Top Engineering Colleges in India with High RPC Scores
Feb 19, 2025
Engineering Colleges Accepting JEE Main Rank 35,000 to 50,000
Feb 19, 2025
List of Engineering Colleges accepting 97 Percentile in JEE Main 2025
Feb 19, 2025
Top Engineering Colleges in India with NIRF Rank Change
Feb 19, 2025
JEE Mains 2025 Session 1 Topper Chirag Singh Interview – Success Strategy and Preparation Tips
Feb 19, 2025

B.Tech/B.Arch Admissions OPEN

Amity University Noida B.Tech Admissions 2025
Apply

Among Top 30 National Universities for Engineering (NIRF 2024) | 30+ Specializations | AI Powered Learning & State-of-the-Art Facilities

Amrita Vishwa Vidyapeetham | B.Tech Admissions 2025
Apply

Recognized as Institute of Eminence by Govt. of India | NAAC ‘A++’ Grade | Upto 75% Scholarships

Chandigarh University Admissions 2025
Apply

Ranked #1 Among all Private Indian Universities in QS Asia Rankings 2025 | Scholarships worth 210 CR

MAHE, Manipal - B.Tech Admissions 2025
Apply

NAAC A++ Accredited | Accorded institution of Eminence by Govt. of India | NIRF Rank #4

UPES B.Tech Admissions 2025
Apply

Ranked #42 among Engineering colleges in India by NIRF | Highest CTC 50 LPA , 100% Placements | Last Date to Apply: 25th Feb

MAHE Manipal - B.Arch Admissions 2025
Apply

Accorded Institution of Eminence by MoE, Govt. of India | NAAC A++ Grade | Ranked #4 India by NIRF 2024 | 200+ Recruiters

View All Application Forms
News and Notifications
7 days ago :
February 11, 2025 - 05:34 PM IST :
February 11, 2025 - 03:14 PM IST :
IIIT Allahabad cut-offs for BTech ECE, IT, IT-Business Informatics goes up in last 3 years; seat matrix
February 19, 2025 - 06:13 PM IST
IIIT Hyderabad JEE Main cut-offs for BTech CSE, ECE of last 5 years; modes of admissions for dual degrees
February 18, 2025 - 03:18 PM IST
JEE Mains 2025 paper 2 objection window closes tonight; final answer key soon
February 16, 2025 - 07:53 PM IST
JEE Mains 2025: NIT Rourkela previous year’s cut-offs for BArch; category-wise closing ranks
February 16, 2025 - 06:27 PM IST
JEE Main session 2 registration 2025 ends in 10 days; how to avoid form rejection
February 15, 2025 - 05:25 PM IST
JEE Main 2025 paper 2 answer key out at jeemain.nta.nic.in; raise objections till February 16
February 15, 2025 - 04:15 PM IST
IIIT Lucknow cut-off for BTech Computer Science courses increased; JEE Main cut-offs of last 3 years
February 14, 2025 - 09:02 PM IST
Download Careers360 App
All this at the convenience of your phone

  • Regular Exam Updates

  • Best College Recommendations

  • College & Rank predictors

  • Detailed Books and Sample Papers

  • Question and Answers

Scan and download the app

OR

Joint Entrance Examination (Main)      
JEE Main College Predictor
Back to top