• 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 of the following is used to restore the colour of old oilpaintings ?

Barium peroxide
Ozone
Sodium peroxide
Hydrogen peroxide

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Ozone consists of

Oxygen and Carbon
Oxygen only
Oxygen and Nitrogen
Hydrogen and Carbon

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Ozone layer is present in

Troposphere
Stratosphere
Ionosphere
Exosphere

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The presence of ozone in the stratosphere is responsible for

Increasing the average global temperature in recent years
Supplying oxygen for people travelling in jets
Checking the penetration of ultra-violet rays to the earth
Higher rate of photosynthesis

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The major use of sulphur is in the manufacture of

Fungicide
H2S
H2SO4
SO2

ANSWER DOWNLOAD EXAMIANS APP
  • «
  • 1
  • ...
  • 25
  • 26
  • 27
  • 28
  • 29
  • ...
  • 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
↑