Give two reasons to justify: a) Water at room temperature is a liquid. b) An iron almirah is a solid at room temperature.

Give two reasons to justify
(a) Water at room temperature is a liquid.
(b) an iron almirah is a solid at room temperature.

 
NCERT Class 9th Science Ch 1 Matter in Our Surroundings

Answer: (a) Water at room temperature is a liquid
Water at room temperature is liquid because at this temperature (i)it has fixed volume and (ii)it can flow.

Or, 

Water at room temperature is a liquid because:
1.intermolecular spaces are very large.
2.intermolecular forces are lees and and kinetic energy is more.

(B) An iron almirah is a solid at room temperature
An iron almirah is solid at room temperature because at this temperature (i) it has definite shape along with fixed volume and (ii) It can not flow like water and hence does not possess fluidity.

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