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


1. A radioactive substance has a half-life of four months. Three-fourth of the substance would decay in [2001]


2. The alpha particle carries two positive charge. Its mass is very nearly equal to that of [1996]


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. Match List I with List II and select the correct answer using the codes given below the lists: [1998]
List-1
A. Blue vitriol
B. Epsom salt
C. Baking soda
D. Caustic soda
List-II
1. Sodium bicarbonate
2. Sodium hydroxide
3. Magnesium sulphate
4. Copper sulphate
Codes:


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



6. Which one of the following can be used to confirm whether drinking water contains a gamma emitting isotope or not?


7. 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:


8. 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]


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


10. Match the names of outstanding Indian scientists given in List I with area of their specialized work given in List II and select the correct answer by using the codes given below the lists: [1998]
List-1 - List-II
A. Dr. Raja Ramanna - 1. Plant chemistry
B. Dr. M.S. Swaminathan - 2. Nuclear physics
C. Prof. U.R Rao - 3. Thermodynamics & astrophysics
D. Prof. Meghnad Saha - 4. Space research
5. Agricultural science
Codes:


General Knowledge

1. World Geography -Test-01
2. World Geography -Test-02
3. World Geography -Test-03
4. Geography of India -Test-01
5. Geography of India -Test-02
6. Geography of India -Test-03
7. Geography of India -Test-04
8. Geography of India -Test-05
9. History of India - Test - 01
10. History of India - Test - 02
11. History of India - Test - 03
12. History of India - Test - 04
13. History of India - Test - 05
14. History of India - Test - 06
15. History of India - Test - 07
16. INM-Test-01
17. INM-Test-02
18. INM-Test-03
19. INM-Test-04
20. INM-Test-05
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