• 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 of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ?

Chlorofluorocarbon
Sulphur dioxide
Carbon dioxide
Nitrous oxide

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Nitrogen fixation is a process of

Utilisation of nitrogen gas
Conversion of molecular nitrogen to ammonia
Conversion of organic nitrogen to proteins
Assimilation of nitrate

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Greenhouse effect is caused by

Nitrogen dioxide
Nitrogen
Carbon monoxide
Carbon dioxide

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The lowest layer of earth's atmosphere is

Stratosphere
Mesosphere
Ionosphere
Troposphere

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Earth’s atmosphere is an envelope of gases extending to a height of

200 km
150 km
100 km
300 km

ANSWER DOWNLOAD EXAMIANS APP
  • «
  • 1
  • ...
  • 155
  • 156
  • 157
  • 158
  • 159
  • ...
  • 218
  • »

GO TO PAGE

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
↑