Chemistry MCQ Quiz Hub

Chemistry MCQ Questions Set-13

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1. Pernicious anaemia is caused by the deficiency of vitamin .......




2. Which of the following is not an example of a biomass energy source?




3. All the member of homologous series can be represented by the same general formula. Choose the INCORRECT formula from among the following. Alkane - Cn H2n+2 Alkene - Cn H2n+1 Alkyne - Cn H2n-2




4. Which gas is released when bleaching powder is added to water?




5. In Newlands table the elements ___ were placed with the halogens.




6. During combustion of unsaturated compounds a ___ is seen.




7. Name the only metal that is antibacterial.




8. Which of the following is used to remove the green colour from glass?




9. What is the molecular formula of Calcium Phosphate?




10. The 4th and 5th periods contain:




11. An element having atomic number 17 will resemble which of the following elements having Atomic number as given below?




12. In which of the following groups of the modern periodic table are the noble gases placed?




13. The most active ingredient in bleaching powder is




14. What is the maximum number of electrons that the outermost shell can have?




15. Brass is an alloy made of




16. Which of the following is an example of a metal that needs to be stored under oil?




17. The mass number of an isotope of an element is 298. If its nucleus has 196 neutrons what is its atomic number?




18. What is mixing an acid with water that results in a decrease in the concentration of ions per unit volume called?




19. When copper oxide is heated with hydrogen. copper metal and water are formed. What happens to the hydrogen in this reaction?




20. Which of the following gases is consistently seen to be most abundant in a volcanic eruption?




21. Who predicted the existence of some yet to be discovered elements on the basis of gaps in his periodic table?




22. Which of the following statement(s) is/are CORRECT? I. Carbon compounds linked by only single bond are called saturated compounds. II. Carbon compounds having double or triple bonds are called unsaturated compounds. III. Saturated carbon compounds are more reactive than unsaturated carbon compounds.




23. Which of the following is used for removing permanent hardness of water?




24. Which of the following is used as a substitute of mercury in thermometers?




25. Which of the following is NOT an ore of iron?




26. Which of the following can undergo sublimation?




27. What happens when dilute hydrochloric acid is added to iron filings?




28. Which of the following acids is NOT present in grapes?




29. Which of the following is also known as Epsom salt?




30. Which of the following can be used as a catalyst in Hydrogenation reaction?




31. __ are homogeneous mixtures of two or more components.




32. Which among the following is a cation?




33. Which among the following has its refractive index closest to that of crown glass?




34. One should use porcelain and not metal containers in a microwave oven because..




35. Which of the following is a chemical change?




36. Identify a use of the isotope of uranium.




37. Which of the following metals reacts vigorously with cold water?




38. Least distance of distinct vision for normal eye is




39. What is the number of atoms constituting a molecule known as?




40. Rupee 5 and 10 coins are now made of




41. Which among the following happens in an oxidation reaction?




42. Safety matches contain




43. The smell that we get when LPG cylinder leaks is due to the presence of




44. ___ is one of the states of matter obtained by cooling a gas of very low density to extremely low temperatures.




45. Which of the following is used in the preparation of vinegar?




46. Galvanization a process to prevent rusting involves use of ___ coating to steel or iron.




47. Which among the following is popularly called Laughing gas?




48. When milk becomes sour ___ is produced.