The nitrogen atom has 7 protons and 7 electrons,The nitride ion will have
The elements belonging to groups ............ are known as 'd' block elements.
220 g of carbon dioxide contains .......... moles.
A solution contains 42 g of common salt in 320 g of water. Calculate the concentration in terms of mass by mass percentage of the solution?
............ is a purple-coloured solid halogen.
The chemical formula of Ammonium phosphate is ............
Which among the following has its refractive index closest to that of crown glass?
Which among the following is a cation?
Which of the following can be used as a catalyst in Hydrogenation reaction?
Advertise with Us
RRB ALP & Technicians
Copyright © 2019 Sawaal.com | All Rights Reserved