Name the following:

(a) Organic compounds with same molecular formula but different structural formula.

(b) Group of organic compounds where the successive members follow a regular structural pattern, successive compounds differ by a ‘CH2’ group.

Match the Column A with Column B: Column A Column B (a) Sodium chloride 1. has two shared pair of electrons (b) Methane 2. has high melting and boiling points (c) Hydrogen chloride gas 3. a greenhouse gas (d) Oxidation reaction 4. has low melting and boiling points (e) Water 5. Zn − 2e− ⟶ Zn2+ 6. S + 2e− ⟶ S2−

State the terms/process for the following: (a) The energy released when an atom in the gaseous state accepts an electron to form an anion. (b) Tendency of an element to form chains of identical atoms. (c) The name of the process by which Ammonia is manufactured on a large scale. (d) A type of salt formed by partial replacement of hydroxyl radicals with an acid radical. (e) The ratio of the mass of a certain volume of gas to the same volume of hydrogen measured under the same conditions of temperature and pressure.

Fill in the blanks with the choices given in the brackets: (a) Metals are good ............... [oxidizing agents /reducing agents] (b) Non-polar covalent compounds are ............... [good / bad] conductors of heat and electricity. (c) Higher the pH value of a solution, the more is ............... [acidic / alkaline] it is. (d) ............... [Silver chloride / Lead chloride] is a white precipitate that is soluble in excess of Ammonium hydroxide solution. (e) Conversion of ethene to ethane is an example of ............... . [hydration / hydrogenation]

Give the structural formulas and IUPAC names as directed: (a) Give the structural formula of the following organic compounds: 2-chlorobutane Methanal But-2-yne (b) Give the IUPAC name of the following organic compounds:

Calculate: (a) The percentage of phosphorus in the fertilizer super phosphate Ca(H2PO4)2 correct to 1 decimal point. (b) Write the empirical formula of C8H18 [At. Wt. H=1, P=31, O=16, Ca=40]

State whether the following statements are True or False: (a) Organic compounds having different molecular formula, but same structural formula are called isomers. (b) A salt is a compound formed by partial or complete replacement of the hydrogen ion of an acid by a metal or electropositive ion.

Differentiate between the following pairs based on the criteria given: (a) Sulphuric acid and Nitric acid (using barium chloride solution) (b) Unsaturated and Saturated hydrocarbons (type of bond present)

Complete and balance the following equations: (a) (b)

State the terms for the following: (a) The group obtained by removing one hydrogen atom from the parent alkane. (b) Two metal plates or wires through which the current enters and leaves the electrolytic cell. (c) The amount of substance which contains the same number of units as the number of atoms in carbon-12. (d) The tendency of an atom to pull a shared pair of electrons towards itself in a compound. (e) The formula which represents the simplest ratio between the atoms of elements present in a compound.

Study the reaction scheme shown below and identify the reactants A, B and C.

(a) Give the IUPAC name for the following organic compounds: (b) Draw the structural diagram for each of the following organic compounds: 1. butanal 2. pent-2-yne 3. The isomer of n-butane

Given below are organic compounds labelled A to F. Answer the questions that follow: (a) Which compound forms a single product with bromine? (b) Which two compounds have the same molecular formula? (c) Which two compounds will react together in the presence of concentrated H2SO4 to form a product with a fruity smell?