1. The compound which reacts fastest with Lucas reagent at room temperature is

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1 1. The compound which reacts fastest with Lucas reagent at room temperature is (a) butan-1-ol (b) butan-2-ol (c) 2-methylpropan-1-ol (d) 2-methylpropan-2-ol 2. Chlorination of toluene in the presence of light and heat followed by treatment with aqueous gives (a) o-cresol (b) p-cresol (c) 2, 4-dihydroxytoluene (d) benzoic acid 3. When phenol is treated with excess bromine water, it gives (a) m-bromophenol (b) o- and p-bromophenol (c) 2, 4-dibromophenol (d) 2, 4, 6-tribromophenol 4. The increasing order of boiling points of the below mentioned alcohols is (I) 1, 2-dihydroxy benzene (II) 1, 3-dihydroxy benzene (III) 1, 4-dihydroxy benzene (IV) hydroxyl benzene (a) (b) (c) (d) 5. The reaction products of is (a) (b) (c) (d) For Questions 6& 7 read the following passage: An alcohol A, when heated with concentrated gives an alkene B. when B is bubbled through bromine water and the product obtained is dehydrohalogenated with excess of sodamide, a new compound C is obtained. The compound C gives D when treated with warm dilute in presence of D can also be obtained either by oxidizing A with or form acetic acid through its calcium salt.

2 6. Compound B is: (A) ethene (B) propene (C) butene (D) but-2-ene 7. Compound D is: (A) Acetone (B) Acetaldehyde (C) Propanaldehyde (D) Ethyl alcohol 8. 3, 3-Dimethylbutan-2-ol loses a molecule of water in the presence of concentrated sulphuric acid to give X as a major product. X is (A) 1,2 Dimethylbut-2-ene (B) 2,2 Dimethylbut-2-ene (C) 2,2 Dimethylbutene (D) 1,2 Dimethylbutene Ans: None of the options are correct. Major product is 2,3 Dimethylbut-2-ene due to methyl shift. 9. How many structure of F are possible? (a) 2 (b) 5 (c) 6 (d) of are 4.79, 3.9,10.0 and 2.6. Arrange their conjugate bases in increasing leaving tendency.

3 11. Which one of the following compounds most readily undergoes substitution SN2 mechanism? 1 0 with least hindrance will undergo SN2 most readily. 12. How many of the following statement(s) is/are correct? (i) The C Cl bond in chlorobenzene is shorter than in chloromethane (ii) The C Cl bond in chlorobenzene has some double bond character (iii) It is difficult to replace chlorine from chlorobenzene than from benzyl chloride (iv) Chlorobenzene on futher chlorination gives m dichlorobenzne (A) 3 (B) 1 (C) 2 (D) All Chlorobenzene though de-activates the ring, still is ortho-para orienting 13. 2, 2 Dichloro 3 methyl butane on hydrolysis forms (A) Diethyl Ketone (B) methyl isopropyl ketone (C) 3 methyl butane 2, 3 diol (D) 2 methyl butane 2, 3 diol It is a geminal di-halide, which on hydrolysis gives a ketone The compound (B) in above reaction is: (A) Ethylene chloride (B) Acetic acid (C) Propionic acid (D) Ethyl cyanide 15.

4 16. Chloroform is oxidized the poisonous phosgene The order of reactivity towards SN2 mechanism is: A) RBr > RCl > RI > RF B) RI > RBr > RCl > RF C) RF > RCl > RBr > RI D) RCl > RF > RBr > RI. Be it SN2 or SN1, RI bond being the weakest will lead to its fastest reactivity.

5 20. Ans: B 21. Williamson synthesis of ethers follows the following mechanism: (A) E1 (B) (C) (D) For Questions 22 to 26, Refer to the paragraph given below: The boiling point elevation and the freezing point depression of solution have a number of practical applications. Ethylene glycol ( ) is used in automobile radiators as an antifreeze because it lowers the freezing point of the coolant. The same substance also helps to prevent the radiator coolant from boiling away by elevating the boiling point. Ethylene glycol has low vapour pressure. We away by elevating the boiling point. Ethylene glycol has low vapour pressure. We can also use glycerol as antifreeze. For boiling point elevation to occur, the solute must be non-volatile, but no such restriction applies to freezing point depression. For example, methanol a fairly volatile liquid that boils only at 65 C is sometimes used as antifreeze in automobile radiators. 22. Which of the following is a better reagent for depression in freezing point but not for elevation in boiling point? (a) (B) (C) (D) g each of the two reagents glycol and glycerol are added in 5kg water of the radiators in the two cars. Which of the following statements is wrong? (a) Both will act as antifreeze (b) Glycol will be better (c) Glycerol is better because its molar mass is greater than glycol

6 (d) Glycol is more volatile than glycerol g glycol is added to 4 kg water in the radiator of a car. What amount of ice will separate out at? kg : (a) 800g (b) 900g (c) 600g (d) 1000g 25. If cost of glycerol, glycol and methanol are same, then the sequence of economy to use these compounds as antifreeze will be: (a) glycerol>glycol>methanol (c) methanol= glycol=glycerol (b) methanol> glycol> glycerol (d) methanol> glycol< glycerol 26. Which among the following is the most volatile and the best antifreeze? (a) (B) (C) Glycol (d) Glycerol 27. Mixing of two liquids and shows a slight increase in temperature (exothermic nature). The solution formed will show: (a) - interactions stronger then - and - interactions (b) - interactions weaker than - and - interactions (c) - interactions equal to - or - interactions (d) cannot be decided 28. Which of the following is correct for the reaction,? (a) (b) (c) (d) 29. Two liquids X and Y form ideal solution. At 300K vapour pressure of the solution containing 1 mole of X and 3 moles of Y is 550 mm Hg. At the same temperature, if 1 mole of Y is further added to this solution, vapour pressure of the solution increases by 10 mm Hg. Vapour pressure ( in mm Hg) of X and Y in their pure states will be, respectively: (a) 300 and 400 (b) 400 and 600 (c) 500 and 600 (d) 200 and Consider separate solutions of 0.500,, and at. Which statement is true about these solutions, assuming all salts to be strong electrolytes?

7 (a) has highest osmotic pressure (b) has highest osmotic pressure (c) has highest osmotic pressure (d) They all have the same osmotic pressure