• 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
Vulcanization of rubber is carried out by adding

Carbon
Phosphorus
Ozone
Sulphur

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Chemical formula of washing soda is

Ca(OH)2
Na2CO3.10H2O
Na2SO4.10H2O
NaHCO3

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

Hydroxy phenyl alanine
Phenyl alanine
Dihydroxy phenyl alanine
Amino phenyl alanine

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The electronic configuration of an atom having atomic number ‘20’ is

2, 8, 8, 2
2, 10, 8
2, 6, 8, 4
2, 8, 10

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?

1/4
1/3
1/6
1/8

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Which among the following metals provides amphoteric oxide ?

Aluminium
Calcium
Silver
Sodium

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
↑