NCERT Test 1 | Chapter 4 | Carbon and its compounds | CBSE  

Chapter 4 (Carbon and its compounds) 

Time: 55 min.                                                                  Marks: 25

Instructions: 

1. Keep Quite

2. Focus on understanding question and giving answer

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Q.1. What will be the formula and electron dot structure of cyclopentane?                                                                           2

Q.2. Draw the structures for the following compounds.      3

(i) Ethanoic acid                     (ii) Butanone                            

Q.3. Why is the conversion of ethanol to ethanoic acid an oxidation reaction?                                                                                  2

Q.4. What are oxidising agents?                                            2

Q.5. Would you be able to check if water is hard by using a detergent?                                                                                1

Q.6. While cooking, if the bottom of the vessel is getting blackened on the outside, it means that                                                     1

(a) the food is not cooked completely.

(b) the fuel is not burning completely.

(c) the fuel is wet.

(d) the fuel is burning completely.

 

Q.7. Draw the electron dot structures for                            2+2 = 4

(a) H₂S

(b) F₂

Q.8. Why are carbon and its compounds used as fuels for most applications?                                                                                   2

 

Q.9. Explain the mechanism of the cleaning action of soaps.     5

 

Q.10. What is hydrogenation? What is its industrial application?    3

 

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