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1.

Statement-1:A recemic mixture of 2-chloropropanoic acid is treated with excess of (+)-2-Butanol.The Statement 2: The solution of reaction mixture at time (t=0) , will be dexterorotatory.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True.

Answer» Correct Answer - B
Discussion
2.

A partially racemised `(+) -` 2-bromo-octane `(2^@ RX)` on reaction with aq. `NaOH` in acetone gives an alcohol with `80 %` inversion and `20 %` racemisation. What is the percentage of back-side attack ?A. `10%`B. `40%`C. `80%`D. `90%`

Answer» Correct Answer - D
Discussion
3.

Compound X `(C_7H_14O_4)` on ozonolysis gives (Y) and (Z).(Z) is the aldehyde which gives only oxime with `NH_2-OH` On treatment with `I_2/(NaOH)`.(Y) gives yellow solid `CHI_3` alongwith compound given below. When (X) is treated with `D_2//Ni`.It gives two optically active compound (V) and (W). Compound (V) and (W) areA. EnantiomersB. DiastereomersC. identicalD. Nuclear isomers

Answer» Correct Answer - B
Discussion
4.

Statement-1: Statement-2:Coplanar arrangement of three rings is fluordane, allows more extensive delocalisation in conjugate anion.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True.

Answer» Correct Answer - A
Discussion
5.

The product isA. B. C. D.

Answer» Correct Answer - A
Discussion
6.

Statement-1:Benzene and ethene both give reactions with electrophillic reagents. Statement-2:Benzene and ethene both have loosely bound `pi` electrons, which can be donated to vacant orbital of the electrophilie.A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True.

Answer» Correct Answer - A
Discussion
7.

N-Methylaniline react with `NaNO_2` and dilute HCl at `0-5^@` C to form.A. B. C. D.

Answer» Correct Answer - C
Discussion
8.

A hydrocarbon (X) of the formula `C_6H_12` does not react with bromine water but reacts with bromine in presence of light, forming compound (Y).Compound (Y) on treatment with Alc. KOH gives compound (Z) which on ozonolysis gives (T) reduces Tollens reagent which gives compound (W) after acidification . (W) gives iodoform test and after acidification produce compound (U) which when heated with `P_2O_5` forms a cyclic anhydride (V). Compound W isA. `COOH-(CH_2)_2-COOH`B. C. D.

Answer» Correct Answer - C
Discussion