Q5. Answer the following questions in 3-4 sentences.
(i)Make sketches of plant and animal cells.
(ii)What is nylon? State its properties.
(iii)Where is natural gas found? Why is it called a clean fuel?
(iv) Differentiate between wildlife sanctuary and zoo.
(v)What are chromosomes? State their function.
(vi)What happens when-
(a)Dilute sulphuric acid is poured on zinc granules?
(b)lron nails are placed in CuSO4 solution?
Write word equation for a and b.
please answer immediately and I will mark as brainliest if I am satisfied with the answers.....
Answers
Explanation:
ii) Nylon fibers are exceptionally strong and elastic and stronger than polyester fibers. The fibers have excellent toughness, abrasion resistance, and are easy to wash, and to dye in a wide range of colors.
Properties of Nylon
1)Nylon fibres are very strong,fairly elastic,lightweight and lustrous. 2)Nylon fibres absorb very little water,so clothes made of nylon are easy to wash and dry. 3)Nylon is wrinkle resistant. 4)Nylon fibres have high abrasion resistance,so they are very durable
iii) Natural gas is called “clean” is because it emits 50 percent less carbon dioxide than coal when you burn it. Thus it's seen by some as a “bridge” fuel until zero-carbon-producing renewable can take over
iv) The main difference between zoos and sanctuaries is how they acquire their animals. A zoo might buy, sell, breed, or trade animals, or even capture animals from the wild. ... A sanctuary also does not capture animals from the wild but acquires only animals who can no longer survive in the wild.
v) Chromosomes are found in the nucleus of a cell. Their function is to carry characteristic features of parent cells to the daughter cell means, from parent to offspring.
vi) (a) When dilute sulphric acid reacts with zinc granules, then zinc sulphate and hydrogen gas are formed. Zinc being more reactive than hydrogen, displaces it from sulphuric acid. This liberated hydrogen is evolved as hydrogen gas.
(b) This reaction is called displacement reaction in which the reactive element Iron, Fe has displaced less reactive Copper from its solution, The chemical equation can be written as: Fe+CuSO4→Cu+FeSO4