• 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
Who modified Bohr's theory by introducing elliptical orbits for electron path

Thomson
Sommerfeld
Rutherford
Hund

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Atoms having the same number of protons but different number of neutrons are called :

Isotopes
Anions
Higgs-boson
Cations

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
For a spontaneous chemical process, the free energy change is

Depends on whether the reaction is exothermic or endothermic
Zero
Positive
Negative

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Among the following iron ores, the highest percentage of iron content is found in–

Magnetite
Haemetite
None of these
Limnonite

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The main chemical constituent of clay is

aluminium silicate
aluminium borosilicate
zeolites
silicon oxide

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Ethane
Carbon monoxide
Methane
Carbon di-oxide

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
↑