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
To obtain Fe and FeO from Fe2O3, the reducing agent used in the upper part of the blast furnace is
Carbon
Carbon monoxide
Limestone
Hydrogen sulphide
The chemical name of the Plaster of Paris is
Calcium hydroxide
Calcium oxide
Magnesium Sulphate
Calcium sulphate
Who discovered Neutrons?
JJ Thomson
Goldstein
James Chadwick
None of these
Which of the following salts does not display aqueous decomposition?
KNO3
NaCl
K2SO4
CH3COONa
Stainless steal contains which of the following other than iron and carbon?
Cr and Co
Co and Mn
Mn and Ni
Ni and Cr
