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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
पर्याय
common salt
petrol
water
milk
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उत्तर
petrol
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Dissolving common salt in water.
Fill in the blank
Revolution of the earth around the sun is a ________ change.
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
A physical change is temporary. Explain.
Make a list of different types of changes with example.
Two chemical substances X and Y combine together to form a product P which contains both X and Y X + Y P
X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following statements concerning X, Y and P are correct ?
- P is a compound
- X and Y are compounds
- X and Y are elements
- P has a fixed composition
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
What type of change is colouring of a paper?
Gas exists in three states as solid, liquid, and gas.
State whether the following statement is true or false:
Anaerobic bacteria digest animal waste and produce biogas.
