Rusting of an article made up of iron is called: - Vidyadip

MCQ

Rusting of an article made up of iron is called:

A
Corrosion and it is a physical as well as chemical change.
✓
Dissolution and it is a physical change.
C
Corrosion and it is a chemical change.
D
Dissolution and it is a chemical change.

✓

Answer

Correct option: B.

Dissolution and it is a physical change.

Rusting of iron is a chemical change. It leads to the corrosion of iron.

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 "M.C.Q. [1 M]" from Is Matter Around Us Pure→Is Matter Around Us Pure — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Following are a few definitions of osmosis read carefully and select the correct definition.

One of the following is not a vector quantity. This one is:

If the speed of a wave is $340\ m/s$ and its frequency is $1700\ Hz,$ then $\lambda$ for this wave in cm will be:

Which is the most effective method of separating mixtures of miscible volatile liquids?

When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after sometime, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour. Which of the following conclusion obtained from these observations is incorrect?

On converting $308\ K, 329\ K$ and $391\ K$ to Celsius scale, the correct sequence of temperatures will be:

Which of the following statement is always correct?

Poultry fowl are susceptible to the following pathogens.

A particle starts from the origin at $t = 0\ s$ with a velocity of $10.0$ j m/ s and moves in the xy−plane with a constant acceleration of the ms$^{−2}$. Then y−coordinate of the particle in $2$ sec is

Food is converted to energy in: