• 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
Threshold limit value of copper in the atmospheric air is

1.0 mg/m3
0.001 mg/m3
0.01 mg/m3
5.0 mg/m3

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Dry powder fire extinguishers contain

Sand and potassium carbonate
Sand and sodium carbonate
Sand and sodium bicarbonate
Sand

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The working of a dry cell is based on

Combination reaction
Electrolysis
Decomposition reaction
Spontaneous oxidation-reduction reaction

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Which one of the following forms of phosphorus is most reactive?

Violet phosphorus
White phosphorus
Red phosphorus
Black phosphorus

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Of the following compounds of calcium, the one having highest covalent character is

Cal2
CaBr2
CaF2
Cacl2

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Which of the following is a man-made source of air pollution ?

Automobile exhaust
Bacterial action in soil and swamp areas
All of these
Forest fire

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
↑