Skip to main content

4



Total Time: 25 mins
Total Mark: 15

1.   Give the electron dot structure of CO2.
(2 Marks)
2.   What is hydrogenation? What is its industrial application?
(2 Marks)
3.   What is funcational group? Identify the functional group present in CH3COOH and C2H5OH.
(3 Marks)
4.   Explain the mechanism of cleaning action of soaps.
(3 Marks)
5.   (a) What are hydrocarbons?
       (b) Give difference between saturated and unsaturated hydrocarbons.
       (c) Why does carbon form large number of compounds?
(5 Marks)


Comments

Popular posts from this blog

6

MAX MARKS: 30 MAX TIME:60 mins 1.   List down the raw materials for photosynthesis? (1 Mark) 2.   Specify what is the role of bile juice in the process of digestion? (1 Mark) 3.   Name the respiratory organ in fish and earthworm. (1 Mark) 4.   Name the types of blood vessels used for the transportation of blood. (1 Mark) 5.   What is dialysis? (1 Mark) 6.   How is respiration in plants and respiration in animals different? (2 Marks) 7.   Draw the labeled diagram of the human digestive system. (2 Marks) 8.   How are alveoli designed and why? (2 Marks) 9.   Define excretion. What are the two organs in human beings that act as accessory excretory organs? (2 Marks) 10.   State the role of the following (i) Chloroplasts (ii) Diaphragm (iii) Larynx (3 Marks) 11.   Give reasons for the following: (i) The glottis is guarded by epiglottis. (ii) It is sai...