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
Potassium Permanganate is used for purifying drinking water, because
it is a sterilising agent
it dissolves the impurities of water
it is a reducing agent
it is an oxidising agent
The theory which advocates that living beings can arise only from other living beings is termed
Bio-genesis
Abiogenesis
Catastrophism
Cosmozoic
The filament of an electric bulb is made of
Tungsten
Nichrome
Graphite
Iron
Lichens are the best indicator of
Air pollution
Sound pollution
Noise pollution
Water pollution
What is the scientific name for washing soda?
Sodium carbonate
Sodium bicarbonate
Calcium carbonate
Calcium bicarbonate
The Mudumalai National Park is located in which state
Chattisgarh
Haryana
Tamil Nadu
Karnataka
The first synthetic fibre made by man was ____
Rayon
Terycott
Polyester
Nylon
Which of the following is used in pencils?
Silicon
Phosphorous
Charcoal
Which one of the following types of waves are used in a night vision apparatus?
Radio waves
Microwaves
Infra-red waves
None of the above
The blue colour of the clear sky is due to
Diffraction of light
Dispersion of light
Reflection of light
Refraction of light
