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
Water is a ________
Natural substance
Man made substance
Both of these
None of these
When coal burns in air then
Carbon dioxide is formed
Sulphur dioxide is formed
Carbon monoxide is formed
Hydrogen gas is formed
Purest form of carbon is
Coal
Charcoal
diamond
All of these
Coaltar contains about
300 substance
400 substance
200 substance
100 substance
The first oil well was drilled in
USA
USSR
UK
India
