List-I | List-II | ||
| (A) | NH3 | (I) | Trigonal Pyramidal |
| (B) | BrF5 | (II) | Square Planar |
| (C) | XeF4 | (III) | Octahedral |
| (D) | SF6 | (IV) | Square Pyramidal |
Step 1: Analyze the Geometry of Each Compound
Step 2: Match the Compounds with the Correct Geometry
Step 3: Conclusion
The correct match is:
A-I, B-IV, C-II, D-III

1 gram of sodium hydroxide was treated with 25 ml. of 0.75 M HCI solution, the mass of sodium hydroxide left unreacted is equal to :
Identify Z in the following reaction sequence.

A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is : 
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is: