RRB GROUP D SCIENCE QUESTIONS 2

1. Sulphur dioxide is an example of?

 
 
 
 

2. The reverberation of sound in a hall results due to continued ?

 
 
 
 

3. First organic compound prepared in the laboratory was?

 
 
 
 

4. The chemical name of vitamin B1 is ?

 
 
 
 

5. The process by which solids are transformed directly into the vapour state is know as ?

 
 
 
 

6. Ribosome’s main activity is

 
 
 
 

7. Synovial fluid is found in the

 
 
 
 

8. The donor of AB blood group can donate to recipient of blood group ?

 
 
 
 

9. Filariasis is a disease caused by ?

 
 
 
 

10. Lack of vitamin B complex causes ?

 
 
 
 

11. Leukemia is a form of ?

 
 
 
 

12. What is the formula of Sodium Zincate?

 
 
 
 

13. The magnitude of a vector is never ? 

 
 
 
 

14. The force of attraction or repulsion between charges follows ?

 

 
 
 
 

15. Bronze is an alloy. Its constituents are ?

 
 
 
 

16. Which of following gases was commonly used in the past in refrigeration?

 
 
 
 

17. What is the directional growth movement of a plant part in response to the touch of an object called?

 
 
 
 

18. Who discovered the fact that – “An electric current produce a circular magnetic field as it flows through a wire”?

 
 
 
 

19. Dry ice is

 
 
 
 

20. If there is no Atmosphere the sky would appear in?

 
 
 
 

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