Question

17. Write chemical equation of the reaction of ethanoic acid with the foll
(a) Sodium; (b) Sodium hydroxide; (c) Ethanol.
Write the name of one main product of each reaction.
18. Define the term transpiration. Design an experiment to demonstr
process.
OR
List in tabular form three distinguishing features between autotrophic
and heterotrophic nutrition.
19. What is carpel? Write the function of its various parts.
20. Explain the following :
(a) Speciation
(6) Natural Selection
21. The absolute refractive indices of glass and water are 3/2 and 4/3 res
the speed of light in glass is 2 x 108 m/s, calculate the speed of light
and water.
22. A person cannot see objects nearer than 75 cm from his eyes while a
normal vision can see objects upto 25 cm from his eyes. Find the
focal length and the power of the correcting lens used for the defe​

Answer 1

Answer:

big questions and big answers

Answer 2

Explanation:

Itna bada question? Bhai ye question hai ya answer? xD