Download App

Matter in Our Surroundings — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings2 Marks
Question
Give one example of the diffusion of a solid in another solid.
✓

Answer

If two metal blocks are bound together tightly and kept undistributed for a few years, then the particles of one metal are found to have diffused into the other metal.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the questions.[Che-2M]" from Matter in Our Surroundings→Matter in Our Surroundings — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

The valencies (or charges) of some of the ions are given below:
Ion
Valency(Charges)
Ion
Valency(Charge)
Sodium ion
1+
Nitrate ion
1-
Copper ion
2+
Sulphide ion
2-
Using this information, write down the formulae of:
  1. Sodium sulphide.
  2. Copper nitrate.
→
How many litres of 15% $\Big(\frac{\text{mass}}{\text{volume}}\Big)$ sugar solution would it take to get 75g of sugar?
→
What is the concentration of a solution which contains 16g of urea in 120g of solution?
→
How does perspiration or sweating help keep our body cool on a hot day?
→
What is a physical change? Give two examples of physical changes.
→
How much water should be mixed with 12ml of alcohol so as to obtain 12% alcohol solution?
→
What is the major difference between a solution and an ordinary mixture?
→
Explain why, hydrogen and oxygen are considered elements whereas water is not considered an element.
→
‘If 100 grams of calcium carbonate (whether in the form of marble or chalk) are decomposed completely, then 56 grams of calcium oxide and 44 grams of carbon dioxide are obtained’. Which law of chemical combination is illustrated by this statement?
→
In which type of change a new substance is formed?
→