NURSING EXAM QUESTIONS
BIOCHEMISTRY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
1
|
|
|
5
|
|
|
3
|
|
|
8
|
Detailed explanation-1: -Acidic strength increases as the stability of the conjugate base increases. Here, the cyano group makes the conjugate base formed (carbanion) stable owing to its electron withdrawing tendency. So, the answer is CH(CN)3.
Detailed explanation-2: -For instance, hydrochloric acid comes in at about pH 1.6, nitric acid at 1.08 and pure sulfuric acid at a whopping pH-12. That makes sulfuric acid the strongest ‘normal’ acid you’ll find.
Detailed explanation-3: -Fluoroantimonic acid is the strongest acid ever discovered. Antimony, fluorine, and hydrogen are the main components. It is a mixture of hydrogen fluoride and antimony pentafluoride that contains a number of different cations and anions. It has a pH of quintillion times that of percent sulfuric acid.
Detailed explanation-4: -Answer and Explanation: The strongest acid is perchloric acid (HClO4 ).
Detailed explanation-5: -Answer and Explanation: The strongest known acid is fluoroantimonic acid. It is an inorganic compound with a pH of-31.3.