Under suitable conditions steam will react with ethene to produce ethanol
Draw structual formula of
(a) Ethene
(b) Ethanol
(ii) what type of organic reaction takes place between ethene and steam ?

Compound 'X'is bubbled through bromine dissolved in C CI_4 & the product formed is CH_2Br-CH_2Br . i] Draw the structural formula of 'X' and state what type of reaction ‘X'has undergone. ii] State your observation for the above reaction. iii] Name the compound formed when steam reacts with ‘X'in the presence of an acid, eg. phosphoric acid. iv] What is the procedure for converting the product formed in iii] above, back to 'X

(a) Write chemical equations and reaction conditions for the conversion (i) Ethene to ethanol (ii) Phenol to phenyl ethanoate (ii) Ethanol to propan-2-ol. (b) Give an example for each of the following reactions: (i) Kolbe's reaction (ii) Reimer-Tiemann reaction

Name the following: i] The process by which ethane is obtained from ethene. ii] A hydrocarbon which contributes towards the greenhouse effect iii] The distinctive reaction that takes place when ethanol is treated with acetic acid. iv] The property of elements by virtue of which atoms of the element can link to each other in the form of a long chain or ring structure. v] The reaction when an alkyl halide is treated with alcoholic potassium hydroxide.

Identify the type of reactions taking place in each of the following cases and write the balanced chemical equation for the reactions. (a) Zinc reacts with silver nitrate to produce zinc nitrate and silver. (b) Potassium iodide reacts with lead nitrate to produce potassium nitrate and lead iodide.

How would you bring about the following conversions ? Name the process and write the reaction involved. (a) Ethanol to ethene , (b) Propanol to propanoic acid Write the reactions.

Select from the letters A to G the correct answer corresponding to the statements from 1 to 5: A: Ammoniacal CuCl_2 , B: Trichloromethane, C: Trichloroethane, D: Bromine soln., E: Aqueous KOH F: Ethene, G: Sodalime, H: Ethanol, I: Ethyne. 1. The organic compound which forms carbon tetrachloride on reaction with chlorine. 2. The reagent which can distinguish between ethene and ethyne. 3. The substance which reacts with bromoethane to give ethanol. 4. The substance which gives bromoethane on reaction with hydrogen bromide. 5. The substance which reacts with acetic acid to give CH_3COOC_2H_5 .

Compond A is bubbled through bromine dissolved in carbon tetrachloride and the product is CH_2Br - CH_2Br . A overset(Br_2//"CC"l_4) rarr CH_2 Br - CH_2 Br . (i) (i) Draw the structural formula of A. (ii) What type of reaction has undergone ? (iii) What is your observation ? (iv) Name (not formula) the compound formed when steam reacts with A in the presence of phosphoric acid. (v) What is the procedure for converting the product of (iv) back to A?

Read the following paragraph and answer the questions given below , Stable equilibrium is of various types . Mechanical equilibrium is achieved when all particles are at rest and total potential energy of the system is minimum . At any stage where particles are at rest but the system is not at stable equilibrium as it can reduce its potential energy by reverting to another position, is called metastable equilibrium . Thermal equilibrium is result from the absence of temperature gradients in the system. Chemical equilibrium is obtained when no further reaction occurs between reacting substances, i.e forward and reverse rates of reaction are equal. When steam with solid iron at high temperature Fe_3O_4(s) and hydrogen gas are produced . But the reaction never goes to completion. This is because as the products are formed the reaction proceeds in reverse direction and when rate of reverse reaction is equal to rate of forward reaction , the concentration of reactants and products become constant and equilibrium is reached. The primary objective of the passage is

Symmetrically subsituted epoxides give the same products in both the acid catalysed and base catalyzed ring opening. An unsymmetrical epoxide gives different products under acid catalysed and base catalysed conditions. Under basic contions, the alkoxide ion simply attacks the less hindered carbon atom in an SN^(2) displacement. Under acidic conditions, the alcohol, attacks the protonated epoxide. Structure II and III show that the oxtrane carbon share part of positive charge. The tertiary carbon bear a larger part of positive charge and it is more strongly electrophilic. The bond between teritiary carbon and oxygen is weaker implying a lower transition state energy for attack at the teritary carbon. Attack by the weak nucleophilic is sensitive to the strength of electrophilic is sensitive to the strength of electrophile. Center attack takes place at more electrophilic carbon which is usually the more substituted carbon because it can better support the positive charge. What will be the products in following reactions