The formula of an oxyacid of phosphorus is $H_3PO_4$. It is a

The number of terminal and bridging hydrogens in $B_2H_6$ are respectively

Give the industrial preparation for diborane.

Which of the following oxides is strongly basic?

Given below are two statements :
Statement $I$ : Gallium is used in the manufacturing of thermometers.
Statement $II$ : $A$ thermometer containing gallium is useful for measuring the freezing point $(256 \ K)$ of brine solution.
In the light of the above statement,choose the correct answer from the options given below :

Anhydrous $AlCl_3$ cannot be obtained from which of the following reactions?