2016 Neet II - Chemistry


1. Which one of the following compounds shows the presence of intramolecular hydrogen bond?




2. The molar conductivity of a 0.5 mol/`dm^3` solution of `AgNO_3` with electrolytic conductivity of `5.76 × 10^(–3)` S `cm^(–1)` at 298 K is




3. The decomposition of phosphine (`PH_3`) on tungsten at low pressure is a firstorder reaction. It is because the




4. The coagulation values in millimoles per litre of the electrolytes used for the
coagulation of `As_2S_3` are given below:
I. (NaCl) = 52,
II. `(BaCl_2)` = 0.69,
III. `(MgSO_4)` = 0.22
The correct order of their coagulating power is




5. During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is




6. How many electrons can fit in the orbital for which n = 3 and l = 1?




7. For a sample of perfect gas when its pressure is changed isothermally from `p_i` to `p_f`, the entropy change is given by




8. The van't Hoff factor (i) for a dilute aqueous solution of the strong electrolyte barium hydroxide is




9. The percentage of pyridine (`C_5H_5N`) that forms pyridinium ion (`C_5H_5N^+H`) in a 0.10 M aqueous pyridine solution (`K_b` for `C_5H_5N = 1.7 x 10^(-9))` is




10. In calcium fluoride, having the fluorite structure, the coordination numbers for calcium ion (`Ca^(2+)`) and fluoride ion (`F^–`) are




11. If the `E^0` cell for a given reaction has a negative value which of the following gives the correct relationships for the values of `G^0` and Keq?






12. Which one of the following is incorrect for ideal solution?




13. The solubility of `AgCl_((s))` with solubility product `1.6 × 10^(–10)` in 0.1 M NaCl solution would be




14. Suppose the elements X and Y combine to form two compounds `XY_2` and `X_3Y_2`. When 0.1 mole of `XY_2` weighs 10 g and 0.05 mole of `X_3Y_2` weighs 9 g, the atomic weights of X and Y are




15. The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = `1.60 ×10^(–19)` C)




16. Boric acid is an acid because its molecule




17. AlF3 is soluble in HF only in presence of KF. It is due to the formation of




18. Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because




19. The suspension of slaked lime in water is known as




20. The hybridizations of atomic orbitals of nitrogen in `NO_2^+, NO_3^-` and `NH_4^+` respectively are




21. Which of the following fluoro-compounds is most likely to behave as a Lewis base?




22. Which of the following pairs of ions is isoelectronic and isostructural?




23. In context with beryllium, which one of the following statements is incorrect?




24. Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reactions does not show oxidizing behavior?




25. Which of the following pairs of d-orbitals will have electron density along the axes?




26. The correct geometry and hybridization for XeF4 are




27. Among the following which one is a wrong statement?




28. The correct increasing order of trans-effect of the following species is




29. Which one of the following statements related to lanthanons is incorrect?




30. Jahn-Teller effect not observed in high spin complexes of




31. Which of the following can be used as halide component for Friedel-Crafts reaction?




32. In which of the following molecules, atoms are coplanar?






33. Which one of the following structures represents nylon 6,6 polymer?






34. In pyrrole the electron density is maximum on






35. Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only elimination reaction?






36. Which one of the following nitro-compounds does not react with nitrous acid?






37. The central dogma of molecular genetics states that the genetic information flows from




38. The correct corresponding order of names of following aldoses with configuration given below respectively, is






39.


In the given reaction (refer fig) the product P is






40. A given nitrogen containing aromatic compound aromatic A reacts with Sn/HCl, followed by `HNO_2` to give an unstable compound B. B, on treatment with phenol, forms a beautiful coloured compound C with the molecular formula `C_12H_10N_2O`. The structure of the compound A is






41. Consider the reaction `CH_3 - CH_2 - CH_2 - Br + NaCN -> CH_3 – CH_2 – CH_2 – CN + NaBr`
The reaction will be the fastest in




42.


The correct structure of the product A formed in the reaction (refer fig)






43. Which among the given molecules can exhibit tautomerism?






44. The correct order of the strengths of the carboxylic acids






45. The compound that will react most readily with gaseous bromine has the formula?




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