Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • <img alt="Mg_{3}B_{2}\overset{HCl(aq)}{\rightarrow}[X]+MgCl_{2}" src="https://entrancecorner.oncodecogs.com/gif.latex?Mg_%7B3%7DB_%7B2%7D%5Coverset%7BHCl%28aq%29%7D%7B%5Crightarrow%7D%5BX%5D&pl

Mg_{3}B_{2}\overset{HCl(aq)}{\rightarrow}[X]+MgCl_{2}

[X]+H_{2}O\overset{HCl(aq)}{\rightarrow}[Y]+H_{2}

For [X] and [Y] the incorrect choice is :

 

Option: 1

[X] is BCl_{3} and [Y] is H_{3}BO_{3}
 

 

 


Option: 2

[X] is B_{2}H_{6} and [Y] is H_{3}BO_{3}


Option: 3

[X] with air and [Y] on strong heating (red heat) give same compound.

 


Option: 4

In [Y] , B completes its octet by removing OH- from water molecule.


Answers (1)

best_answer

(A)Mg_{3}B_{2}\xrightarrow[Hydrolysis]{HCl(aq)}MgCl_{2}+B_{2}H_{6}[X],X is\: not\: BCl_{3},it\: B_{2}H_{6}

(B) B_{2}H_{6}+6H_{2}O\rightarrow 2H_{3}BO_{3}[Y]+6H_{2},

(C) Both[X] \: and [Y]\: \: gives B_{2}O_{3};B_{2}H_{6}+3O_{2}\rightarrow B_{2}O_{3}+3H_{2}O;H_{3}BO\xrightarrow[heat]{Red \Delta} B_{2}O_{3}

(D) \; B(OH)_{3}(aq)+2H_{2}O\rightarrow B(OH)_{-}^{4}+H_{3}O^{+}(aq)

So B , C and D are correct options

Posted by

Gautam harsolia

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

BTech aspirant from north-east or UT? Apply for CSAB NEUT counselling 2025 today
anam-khan

JoSAA round 2 cut-off 2025 out; BTech closing ranks for top engineering courses at IITs
anam-khan

Goa Engineering Admission 2025: 1,415 eligible for BE seats; merit list on June 27

Latest Question