Question

In a pressure-kerosene stove,
i) We pump kerosene and convert it into vapours
ii) The vapours are then ignited
Which of the following is true about the above statements ?
a) i) is a physical change; ii) is a physical change
b) i) is a physical change; ii) is a chemical change
c) Both i and ii are physical changes
d) Both i and ii are chemical changes​

Answer 1

Answer:

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Answer 2

Answer:

The regular reflection is the reflection of light rays when they meet (fall on) a smooth (uniform) and glistening surface, where the incident light rays are reflected in one direction, When a beam of parallel light rays is incident on a smooth and plane surface, the reflected rays will also be parallel, and it is ...

Explanation:

The regular reflection is the reflection of light rays when they meet (fall on) a smooth (uniform) and glistening surface, where the incident light rays are reflected in one direction, When a beam of parallel light rays is incident on a smooth and plane surface, the reflected rays will also be parallel, and it is ...

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