Home
Class 9
CHEMISTRY
Study the given graph carefully and sele...

Study the given graph carefully and select the correct statement(s).

I. When water is cooled to `4^@C`, the volume decreases.
II. Ice and water co-exist at `0^@C`.
III. Water has minimum density at point Q.
IV. The volume of ice is more than that of water.

A

I only

B

II and III only

C

I,II and IV only

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
C
Water has a maximum density at `4^@C`. At point .Q. temperature is `4^@C`, thus water has maximum density at this point as volume is minimum.
Density=`"Mass"/"Volume"`
At `0^@C` (273 K), the melting point of ice, both ice and water co-exist. In crystal structure of ice there is more space between the molecules than in the molecules of liquid water. As a result ice is less dense (more volume) than water.
Promotional Banner

Topper's Solved these Questions

  • MATTER IN OUR SURROUNDINGS

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (INTEGER/NUMERICAL VALUE) LEVEL - 2 |5 Videos

  • IS MATTER AROUND US PURE ?

    MTG IIT JEE FOUNDATION|Exercise OLYMPIAD/ HOTS CORNER|20 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (INTEGER/NUMERICAL VALUE)|4 Videos

Similar Questions

Explore conceptually related problems

When water is heated from 0^@C to 20^@C its volume

When water is heated from 0^(@)C to 10^(@)C , its volume

When water is heated from 0^(@)C to 10^(@)C , the volume of water

Water has __ volume and __ density at 4^@C

Statement (S) : Ice floats on water. Explanation (E) : Water on cooling expands in volume and hence density of ice is lower than that of water