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

Chemistry

Chemistry
Which one out of the following helps in burning ?

Nitrogen
Carbon monoxide
Carbon dioxide
Oxygen

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

Dihydroxy phenyl alanine
Hydroxy phenyl alanine
Phenyl alanine
Amino phenyl alanine

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The depletion of Ozone layer is mainly due to

Aviation fuels
Volcanic eruptions
Chlorofluorocarbons
Radioactive rays

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Formic acid is produced by

White ants
Cockroaches
Red ants
Mosquitoes

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Which acid is used in Lead storage battery?

Nitric acid
Acetic acid
Sulphuric acid
Hydrochloric acid

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Total number of naturally occurring elements

92
110
98
62

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Chemistry

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
↑