• 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
Copper substances when exposed to air gains a green coating due to the formation of:

Cu(NO3)2
CuCO3 Cu(OH)2
CuO
CuSO4

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
In upper layer of atmosphere ozone is formed by

The action of ultraviolet rays on oxygen
Subjecting oxygen to high pressure
The action of nitrogen on oxygen in atmosphere
The combination of oxygen molecules

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
What is the element required for solar energy conversion ?

Tantalum
Silicon
Ultra pure carbon
Beryllium

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Which of the following is not a donor atom?

Aluminium
Arsenic
Phosphorus
Antimony

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The function of sedimentation tank in sewage treatment is to:

Disinfect the sewage
Remove suspended solids
Remove water content
Aerate the sewage

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Stains of rust on clothes can be removed by :

Alcohol
Oxalic acid
H2O2
Petrol

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
↑