Match List I with List II.
| List-I | List-II | ||
|---|---|---|---|
| A | Sulphate | I | Pesticide |
| B | Fluoride | II | Bending of bones |
| C | Nicotine | III | Laxative effect |
| D | Sodium arsinite | IV | Herbicide |
Choose the correct answer from the options given below:
A square loop of sides \( a = 1 \, {m} \) is held normally in front of a point charge \( q = 1 \, {C} \). The flux of the electric field through the shaded region is \( \frac{5}{p} \times \frac{1}{\varepsilon_0} \, {Nm}^2/{C} \), where the value of \( p \) is:
Such a group of atoms is called a molecule. Obviously, there must be some force that holds these constituent atoms together in the molecules. The attractive force which holds various constituents (atoms, ions, etc.) together in different chemical species is called a chemical bond.
There are 4 types of chemical bonds which are formed by atoms or molecules to yield compounds.