Which one of the following is used as preservative?
Sodium benzoate
Ammonium sulphate
Sodium chloride
Copper sulphate
Which one of the following is a step of analogy strategy in science?
Presentation of abstraction
Interlinking concepts
Application
Map similarities
Yeast is used for the production of
curd
sugar
common salt
alcohol
D.
alcohol
Yeast converts the sugars of wine grapes into alcohol and carbon dioxide through the process of fermentation.
If the frequency of a simple pendulum is 2 Hz, how many oscillations will it complete in 16s?
16
64
32
8
Magnesium hydroxide (Mg (OH)2) is used as
reducing agent
anti-acid
fermentation agent
oxidising agent
Which one of the following gases burn with pop sound?
Hydrogen
Nitrogen dioxide
Sulphur dioxide
Oxygen
Which of the following is/are example(s)of non-contact force?
Muscular force
Gravitation force
Magnetic force
Both (A) and (B)