Question

Alka and Sudha were in the marriage procession of their brother. Fireworks were being used freely. The rockets were producing dazzling white light in the sky. Alka asked Sudha how the sparkles and dazzling lights are produced ? Sudha explained the phenomenon and Alka was satisfied.
(a) Which compound of fireworks produce white dazzling light?
(b) Is it a physical or chemical reaction? Give reason
(c) what value are shown by Sudha

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Answer 1

Answer:

a) magnesium ribbon

b)its chemical reaction as it is burned and forms an ash with white dazzling light

c)2Mg + O2 gives u. 2MgO

Explanation:

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Answer 2

Answer:

a) Magnesium

b) Chemical

c) 2Mg + O2 gives u. 2MgO

d) White colour indicates peace

Explanation:

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