• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Water, pH and Macromolecules

Water, pH and Macromolecules
The strength of an acid depends on

number of neutrons gain
number of double bonds
number of protons released
electronegativity

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Polyprotic acids such as H3PO4, can act as acid-base buffers

if their concentration is kept low
at pH values around any of their pKa's
at pH values around neutrality
only in combination with polyprotic bases

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
The pH of a solution is determined by

environmental effect
concentration of salt
dielectric constant of the medium
relative concentration of acids and bases

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
Which of the following acid/base pairs act as natural buffers in living systems?

Histidine+/histidine
H2CO3/HCO3-
H2PO4-/HPO42-
All of these

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
The reactions of molecules

All of these
are independent of the functional groups
are the reactions of the functional groups
require an enzyme in all cases

ANSWER DOWNLOAD EXAMIANS APP

Water, pH and Macromolecules
The reason that fats contain more energy than simple sugars, is fats have many more

hydrogen bonds
carbon atoms
hydrogen atoms
covalent bonds

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Water, pH and Macromolecules

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑