JEE CHEMISTRY UNIT 20
QUIZ NO 3
TOTAL QUESTIONS = 20


1. In volumetric analysis, a standard solution is one whose


2. What happens when ammonium chloride is heated with sodium hydroxide


3. What is the test for carbon dioxide gas


4. Which gas is used in the preparation of sulfuric acid by the contact process


5. Which compound is used to prepare chlorine gas in the laboratory


6. Which method is used to separate the components of a mixture based on boiling points


7. Which process is used to obtain pure solid crystals from a solution


8. Which gas is identified by the pop sound test


9. Which reagent is used to test the presence of sulfate ions in a solution


10. Which gas is evolved when zinc reacts with dilute sulfuric acid


11. Which gas turns lime water milky when bubbled through it


12. Which technique is used to separate immiscible liquids


13. What is the function of silica gel in chromatography


14. Which metal is used in the detection of nitrate ions


15. What is the confirmatory test for chloride ions


16. What is the principle of fractional distillation


17. What is the function of a desiccator in a laboratory


18. Which indicator is suitable for weak acid vs strong base titration


19. What is the color of the precipitate formed when lead nitrate reacts with potassium iodide


20. Which method is used to purify a solid compound



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