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


1. The chemical used as a 'fixer'in photography is [1995]


2. Consider the following statements with reference to the periodic table of chemical elements: [2001]
1. Ionisation potential gradually decreases along a period
2. In a group of elements, electron affinity decreases as the atomic weight increases
3. In a given period, electronegativity decreases as the atomic number increases
Which of these statement (s) is/are correct?


3. Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shaver etc? [1995]


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


5. 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?



6. 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]


7. Which one of the following statements is NOT correct? [2003]


8. Match List 1 with List II and select the correct answer using the codes given below the lists: [1998]
List-I - List-II
A. Potassium bromide - 1. Fertiliser
B. Potassium nitrate - 2. Photography
C. Potassium sulphate - 3. Bakery
D. Monopotassium tartarate - 4. Gun powder Codes:


9. Which one of the following is NOT radioactive? [2001]


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


General Knowledge

1. World Geography -Test-01
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