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Chemistry MCQ Questions set-8

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1. Atomic bomb is based on which of the following principle?




2. Ionic compounds ______. I. have high boiling point II. have high melting point III. conduct electricity in solution




3. Which of the following can be beaten and converted into thin sheets?




4. Which metal is liquid at room temperature?




5. Generally covalently bonded molecules ______. I. have high boiling and melting point as compare to ionically bonded molecules II. poor conductors of electricity III. have weak intermolecular force




6. The melting point of ice is ____ K.




7. Find the similarity in the following : Carbon Silicon Boron Arsenic




8. Charge on proton is equal to the charge on ______.




9. In the following reaction fill in the blank. Acid + Base ? _______ + Water




10. How many atoms are present in a (NH4)2SO4 molecule?




11. 2O represents two ......... of oxygen.




12. Group 8A of the periodic table contains the




13. Which among the following has lowest electron affinity?




14. Saturated carbon compounds can form which types of chain structures? I. Straight chain II. Branched chain




15. ___ is used for making chemical apparatus like beakers flasks etc.




16. Which of the following is a chemical formula of quicklime?




17. _____ is used for making vinegar.




18. Chemical name of vinegar is




19. Which of the following is used as anaesthetics?




20. What is the maximum number of states of matter?




21. Which of the following acts as best adsorbent?




22. Chemical formula for sulphurous acid is:




23. The atoms of Germanium Arsenic Selenium and Bromine contain ...... shells.




24. Which of the follow is the last element in Newlands Law of Octaves classification?




25. Which among the following has the maximum density?




26. Which of the following elements has the lowest melting point?




27. What is the common name of Sodium Bicarborate?




28. What is the compound formed when Ag+ and Cl- combine?




29. Which of the following gas was released during Bhopal gas tragedy?




30. In arc welding Argon is used because of its




31. Which of the following induces souring of milk?




32. Which of the following bonds are weakest in nature?




33. In Mendeleevs periodic table the properties of the elements are considered a periodic function of their: