Question:
All of the following give orthoboric acid except
All of the following give orthoboric acid except
Updated On: Jul 6, 2022
- $\ce{B_2H_6 + H_2O ->}$
- $\ce{B_2H_6 + HCl ->}$
- $\ce{Na_2B_4O_7 + H_2SO_4 (aq) ->}$
- $\ce{Ca_2 B_6 O_{11} + SO_2 (aq) -> }$
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The Correct Option is B
Solution and Explanation
$ {B_2H_6 + HCl -> B_2H_5Cl + H_2}$
(a) $ {B_2H_6 + 6H_2O -> 2H_3BO_3 + 6H_2}$
(c) $ {Na_2B_4O_7 + H_2SO_4 + 5H_2O -> Na_2SO_4 + 4H_3BO_3}$
(d) $ { Ca_2B_6O_{11} + 4SO_2 + 11H_2O -> 2Ca (HSO_3)_2 + 6H_3BO_3}$
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family