A. 3 σ and three pπ -dπ
B. 3 σ, one pπ - pπ and two pπ - dπ
C. 2 σ and three pπ-dπ
D. 2 σ and two pπ-dπ
Which pair of oxyacids of phosphorous contain ‘P - H\' bonds
SiCl<sub>4</sub> on hydrolysis forms X and HCI. Compound X loses water at 1000<sup>o</sup>C and gives Y. Compounds X and Y respectively are <br>
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 ?