00:01
Explanation for the given question the question is which pair of compounds will form a buffer in a solution so first we will discuss state what is buffer solution buffer solution is a solution and that resists change in ph so it is called buffer solution and preparation of buffer solution is preparation we'll discuss the preparation date how buffer solutions can be prepared so here we have two types of we can prepare two types of buffer solution first one is acidic buffer solution and second one is basic buffer solution preparation for the preparation of acidic buffer solution is weak acid plus its salts of salt of a strong base and this will form an acidic buffer solution and next method is combination of weak base plus its salt of citron acid so this form a basic buffer solution and now we will discuss each part of the question that the first part is the first part is part a that is which pair of compounds will form a buffer solution? buffer inequate solution first part is here hcl and hcl plus n -a -o -h so the condition for the preparation of buffer solution is here this is citron acid and this is citron base so this cannot form buffer solution and next combination is hcl and nacl.
03:23
So here hxl is strong acid and nacl is salts of strong acid, salt of strong acid.
03:36
So this also can't prepare the right method for the preparation of buffer solution.
03:43
And next one is in part c.
03:48
We have and the condition is hydrogen cyanide and sodium cyanide so here hydrogen cyanide is hydrogen cyanide is strong acid and in sodium cyanide is salt of strong acid this is salt of strong base and this is strong base so strong this is, sorry, weak base or weak base.
05:01
So the condition for basic buffer solution is weak base plus its salt of strong, strong acid.
05:11
So here this is, this we have is strong acid.
05:19
So this will form buffer solution.
05:31
And fourth one is, fourth condition is here...