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Chemistry (Civil Service Examination), Questions and Answers, GK for UPSC, Bank PO & All Exams


1. Regarding the atom of a chemical element, the magnetic quantum number refers to [2003]


2. With reference to ionic compounds, consider the following statements: [2003]
1. Ionic compounds are insoluble in alcohol.
2. Ionic compounds in the solid state are good conductor of electricity.
Which of these statements is/are correct?


3. Assertion (A): In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a group
Reason (R): In a group, the atomic radii generally increase from top to bottom. [2003]


4. Which one of the following materials is very hard and very ductile? [2000]


5. a dry cell (battery), which of the following are used as electrolytes? [2009]



6. Cobalt-60 is commonly used in radiation therapy because it emits [1999]


7. Assertion (A) : Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons.
Reason (R) : Ammonia can be liquefied at ambient temperature and low pressure. [2000]


8. 'Yellow cake', at item of smuggling across border is


9. In an atom, the order of filling up of the orbitals is governed by [2001]


10. Match List I with List II and select the correct answer using the codes given below the lists: [2000]
List-I- List-II
A. German silver - 1. Tin
B. Solder - 2. Nickel
C. Bleaching powder - 3. Sodium
D. Hypo - 4. Chlorine Codes:


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