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SPECIAL FEATURE - TO DAY ON LINE GENERAL SCIENCE Test  No:6
 
Choose the correct option from the choices given under the question.
1. Which of the following sets of elements would have nearly same atomic radii?
  1. Na, K, Rb, Cs 2. Na, Mg, Al, Si
  3. Fe, Co, Ni, Cu 4. F, Cl, Br, I.
 
2. Which of the following substance is employed in making explosives ?
  1. Oxalic acid 2. Glycerol
  3. Urea 4. All of the above.
 
3. Which of the following theory provides explanation about paramagnetic nature of oxygen?
  1. Electronic theory of valency 2. Valency bond theory
  3. Molecular orbital theory 4. All of the above.
 
4. Which of the following water pollutants encourage the formation of algae ?
  1. Insecticides 2. Heavy metals
  3. Plant neutriants 4. Sediments.
 
5. Which of the folowing is not an acceptablwe value of order of the reaction?
  1. 3/2 2. 2
  3. 0 4. 4.
 
6. Which one of the following has the smallest heat of hydrogenation per mole?
  1. 1-butene 2. trans-2-Butene
  3. cis-2Butene 4. 1, 3-Buteadiene.
 
7. Which one of the following sets of elements has the strongest tendency to form negative ions in gaseous state?
  1. Na, Mg, Al 2. Ca, V, Cr
  3. N, O, F 4. Ga, In, Tl.
 
8. Process of verifying the given generalisation with the help of observation is called _____
  1. Deductive process 2. Inductive Process
  3. Scientific Process 4. Convention
 
9. Units which can be expressed in terms of two or more fundamental units of mass or called____ units
  1. Derived 2. defined
  3. undefined 4. underived
 
10. The effective radius of proton is
  1. 1.3 fermi 2. 2.2 fermi
  3. 1.2 fermi 4. 1.25 fermi
 
11. In FPS system the units of length
  1. foot 2. feet
  3. yard 4. mile
 
12. In MKS system the unit of force is _____
  1. Dynes 2. Poundals
  3. Newton 4. web/msq
 
13. Which of the following is measure of the light?
  1. Decible 2. Frequency
  3. Dine 4. Pascal
 
14. The iron-nails used in the apparatus during electrolysis of water are called:
  1. switches 2. electrodes
  3. terminals 4. batteries
 
15. Short distances can be measured by using:
  1. Survey chain 2. Measuring tape
  3. Common balance 4. Scale
 
16. Mist and fog are formed during:
  1. Winter season 2. Summer season
  3. Hot season 4. None of the above
 
17. Air is a …. Of gases.
  1. Element 2. Mixture
  3. Compound 4. None of the above
 
18. The shape of the metallic frame of a screw gauge is
  1. "U" 2. "V"
  3. Pyramidal 4. Linear
 
19. If the zeroth division of the head scale is above the index line of the pitch scale then the error is ____
  1. Positive 2. Negative
  3. No Zero error 4. none
 
20. Least count of a screw gauge =
  1. X / N 2. N / X
  3. N / P 4. P / N
 
21. In anaerobic respiration
  1. Glycolysis does not take place 2. Water molecule is split
  3. Oxygen acts as a final electron acceptor 4. Ethyl alcohol is the common end product
 
22. The substances that prevent clotting of blood in blood vessels in :
  1. haemoglobin 2. heparin
  3. thyroxin 4. pepsin
 
23. If terminal bud of a plant is removed
  1. plant grows to normal height 2. lateral branches grow
  3. plant increases in height 4. roots donot develop
 
24. Which performing the flame test, the paste of the salt in made in HCl because
  1. HCl is a strong acid 2. HCl is non-oxidising acid
  3. Chlorides are relatively volatile 4. HCl is cheaper.
 
25. Which transition metal shows lowest oxidation state in its compounds with chlorine?
  1. Fe 2. Ti
  3. Cu 4. Zn.
 
  TOTAL MARKS: 0       GRADING:
 
Color Codes:
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