Question

47. Honey is more viscous than water. Can you suggest why?
48. Explain why :
(a) air is used to inflate tyres.
(b) steel is used to make railway lines.
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Answer 1

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1 => Because honey has more strong intermolecular attractive forces than water.so the particles are strongly binded in honey than water.hence honey is more viscous than water

2 => (a) Air is Used to inflate tyres because Air is compressible and can be compressible upto some extent of pressure

(b) Steel is Used to make railway lines or path because it has the ability to expand . It is also because when it expands it only becomes bigger, and does not change it shape, making sure it is safe to travel by train

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Answer 2

☆ANSWER

47. Honey is more viscous than water because honey has more strong intermolecular attractive forces than water . so the particles of honey more binded in honey than water ..hence honey is more viscous than water.

48.

(a ) Air is used to inflate tyres because they can be compressible upto some extent of pressure....

( b ) Steel is used to make railway lines because steel is very flexible and has ability to expand but its not change his shape . Its only become makes sure to safe travel by train ...

hope it helps u