Advertisements
Advertisements
Question
Name a liquid which can be classified as a pure substance and conducts electricity.
Solution
Mercury is a liquid metal that can be classified as a pure substance and a good conductor of electricity.
APPEARS IN
RELATED QUESTIONS
Gases have definite volume but no definite shape.
What are the two conditions for the interconversion of states of matter ?
Name one solid, one liquid and one gaseous non-metal.
Name a metal which forms amalgams.
What are (i) metals (ii) non-metals, and (iii) metalloids ? Give two examples each of metals, non-metals and metalloids.
Which of the following are compounds ?
- CO
- No
- NO
- Co
Out of a colloid, solution and a suspension :
which one has the largest particles ?
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
What is the difference between solutions and colloids ?
9.72 g of potassium chloride dissolves in 30 g of water at 70°C. Calculate the solubility of potassium chloride at that temperature.
Which of the following do not exhibit Tyndall effect ?
Starch solution, Sugar solution, Ink, Salt solution, Copper sulphate solution, Ammonium chloride solution, Fog, Smoke, Car exhausts.
Define solubility of a substance. How does it vary with temperature ?
Which of the following can be called a suspension ?
Name the process which can be used to recover salt from an aqueous salt solution.
Describe a method to separate a mixture of common salt and sand.
The best way to recover sugar from an aqueous sugar solution is :
Which one of the following scrap metal cannot be separated by magnetic separation ?
What's the solution?
We need to rub salt on a corncob, but only salt crystals are available.
Name the metals that are used in jewellery.
Evaporation does form bubbles.