Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
_________ is a basic salt obtained from sodium hydroxide and carbonic acid.
Sodium chloride
Sodium carbonate
Sodium sulde
Sodium hydrogen carbonate
Which one is a physical change- fermentation of a fruit juice or diluting a fruit juice?
fermentation of a fruit juice
diluting a fruit juice
Both of these
None of these
What is the chemical name of ‘laughing gas’?
What is the color of magnesium oxide?
White
Blue
Grey
Pink
Which of the following is a chemical change?
Liquefaction of air
Heating copper wire in presence of air at high temperature
Storing of oxygen gas under pressure in a gas cylinder
Keeping petrol in a china dish
