A. H2SiCl6 , SiO2
B. H2SiO4 ,Si
C. SiO2 , Si
D. H4SiO4 ,SiO2
Aluminium reacts with NaOH and forms compound X. If the coordination number of aluminium in X is 6, the correct formula of X
Which of the following is the anhydride of HNO<sub>3</sub>
Helium mixed with oxygen is used in the treatment of:
While phosphorus form PCl5, nitrogen does not form NCl5 because
Ordinary glass is a combination of the following
Carbogen to
Which of the following is used in the preparation of generated water (soda)
Which one of the following compounds in aqueous solution gives a white precipitate with perichloric acid ?
Bond energy of Cl2,Br2 and I2 follow the order
The correct order of reducing abilities of hydrides of V group elements is