Question

D. Choose the correct option<br />1. Which of the following is not a reversible change?<br />(a) The changing of water into steam<br />b) The melting of iron<br />fe) The burning of kerosene<br />(d) The freezing of water<br />2. Which of the following is a reversible change?<br />(a) The burning of wax<br />(b) The melting of wax<br />c) The curdling of milk<br />(d) The cooking of food<br />3. During which of the following changes are new substances formed?<br />(a) Melting<br />(b) Sublimation<br />fel Evaporation<br />(d) Rusting<br />4. Rusting takes place in<br />(a) air-free moisture<br />(b) moisture-free air<br />ich moist air<br />id) none of these<br />5. In which of the following processes is light absorbed?<br />(a) Sublimation<br />(b) Burning<br />Ic Rusting<br />(d) Photosynthesis​

Answer 1

Answer:

1.c)Burning of kerosene

2.b) Melting of wax

3.d)Rusting

4.c)Moist air

5.d) photosynthesis

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