What cross-sections do you get when you give a (i) vertical cut (ii) horizontal cut to the following solids?
An ice cream cone

What do you understand by the following terms (i) roasting (ii) smelting

In a locality, there is a man road along North-South direction. The man is given below. With the help of the picture answer the following questions. (i) What is the 3rd object on the left side in street no 3? (ii) Find the name of the 2nd house which is in right side of street 2. (iii) Locate the position of Mr. K's house. (iv) How do you describe the position of the post office. (v) How do you describe the location of the hospital?

What are the oxidation number to the underlined elements in each of the following and how do you rationalise your results? a) Kunderline(I_(3)) b) H_(2)underline(S_(4))O_(6) c) underline(Fe_(3))O_(4)

Complex compounds are molecular compounds which retain their indentities even when dissolved in water. They do not give all the simple ions in solution but instead furnish complex ions. The complex compounds are often called coordination compounds because certain groups called ligands are attached to the central metal ion by coordinate or dative bonds. Coordination compounds exhibit isomerism, both structural and stereoisomerism. The struculre, magnetic property, colour and electrical properties of complexes are explained by various theories. Arrange the following compounds in order of of their molar conductance : i) K[Co(NO_(2))_(4)(NH_(3))_(2)] ii) [Cr(ONO)_(3)(NH_(3))_(3)] iii) [Cr(NO_(2))(NH_(3))_(5)]_(3)[Co(NO_(2))_(6)]_(2) iv) Mg[Cr(NO_(2))_(5)(NH_(3))]

What do you observe on the cut pieces of fruits and vegetables? Why do they change their colour?