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Biology MCQ Question - Diagnostic Test

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1. For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as




2. For which system does the equilibrium constant Kc has unit of (concentration)-1




3. Solubility product of AgCl is 2.0 x 10-10 mol2 dm-6. Maximum Concentration of Ag+1 ions in the solution is




4. 18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to




5. Which of the following solution has the highest boiling point?




6. Stronger is the oxidizing agent greater is the




7. Which of the following can be used in laptops?




8. Which is true about Zn-Cu galvanic cell?




9. Which is the unit of (K) rate constant for zero order reaction?




10. Nitrates of which pair gives different products on thermal decomposition




11. Which is carnalite




12. Keeping in view the size of atom which is in correct order




13. Which one does not give borax bead test




14. Which one is not the use of silicones




15. The most reactive allotropic form of phosphorus is




16. Chemical composition of cinnabar is




17. Which molecule has the highest bond energy among the halogens




18. When chlorine is passed through hot solution of caustic soda the reaction is said as




19. The most paramagnetic element is




20. In the complex [Cr(OH)3(H2O)3] the coordination number is




21. Which one of the following looks odd




22. A great variety of the organic compounds is due to its property of carbon




23. In 1 - pentene -4- yne the carbon exhibit hybridization




24. Vinyl acetylene combines with hydrochloric acid produces




25. When benzene is heated in air with V2O5 at 450?C yields




26. When toluene reacts with chlorine in sunlight the first major product is




27. Which one of the following will be sulphonated readily?




28. Which one of the following is not a good leaving group ?




29. When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields




30. The process of fermentation involves all the enzymes except




31. Ethy1 chloride on reduction in the presence of Zn/HCI produces




32. Which one does not exhibit aldol condensation




33. For industrial preparation of CH3CHO catalytic promoter is




34. The common name of propane -1 3-dioic acid is




35. Which of the following is not a fatty acid?




36. Industrial materials thermal power stations are coated with




37. Which one of the following fertilizers provides the nitrogen and phosphorus to the plant?




38. Chlorination of water may be harmful if the water contains




39. What is the relative rate of effusion of CO and CO2?




40. Which of these gases diffuse more quickly than oxygen?




41. Which of the following is not considered as an intermolecular force between molecules?




42. The weakest (in strength) of the following intermolecular forces is




43. Ideal gasses have all the following characteristics except.




44. Which of the following statements is true about plasma




45. Which statement is correct




46. Under what conditions the gases deviate from the ideal behavior?




47. Which one has the lowest density at room temperature?




48. The introduction of Kelvin scale in thermometry is according to




49. 0.5 mole of nitrogen gas and 0.5 mole of carbon monoxide gas at STP have same




50. At constant temperature the pressure of an ideal gas is doubled its density becomes