Science, asked by InderInderveer, 1 year ago

Q11. What is redox reaction? Give example.
Q12. Aluminium is a reactive metal but is still used for packing food articles. Wh
Q13. Identify the type of reaction from the following equations:-
a) CuSO4 + Zn + ZnSO2; +Cu
b) Cao +H20 – Ca (OH)2
Q14. A few drops of sulphuric acid are added to water before electrolysis. Wh
Q15. What are the antacids? Name two compound Which are used as antacid
Q16. A white powder is added while baking breads and cakes to make them
fluffy. What is the name of the powder? What are the main ingredients in it
the functions of each ingredient?
Q17. What is a spherical mirror? What are its types?
Q18. Define refractive index of a transparent medium. What is its unit? W
higher refractive index, water or glass?
Q19. State Snell's law of refraction.
Q20 A concave lens has focal length of 20 cm. At what distance from the
Tall object be placed so that it forms an image at 15 cm from the lens? A
the size of the image formed.​

Answers

Answered by ZargarInaam1
1

Answer:

Ask each question separately

Answered by diya12347
1

Answer:

11- those reactions in which oxidation and reduction takes place at the same time , are called redox reaction

for example see the picture given above

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