• 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
Which of the following has least negative electron gain enthalpy

P
Cl
S
F

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Ozone saves the biosphere by absorbing high energy radiations called ________ .

X–rays
Ultraviolet rays (UV)
Infra-red (IR)
Gamma rays

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Heavy metal pollution of water is caused by:

Acid Plants
Wood burning
Paints
Domestic sewage

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Iron is extracted from

Cinnabar
Bauxite
Dolomite
Haematite

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The material which can be deformed permanently by heat and pressure is called a

thermoset
thermoplastic
chemical compound
polymer

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
↑