Hydrogen burns with a ______ flame and ______ sound is heard. - Chemistry

Hydrogen burns with a ______ flame and ______ sound is heard.

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Hydrogen burns with a pale blue flame and pop sound is heard.

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Chapter 7: Hydrogen - Exercise [Page 98]

Chapter 7 Hydrogen
Exercise | Q 1.3 | Page 98

In what respect does hydrogen differ from:

alkali metals

State whether the following conversion is oxidation or reduction:

PbO₂ + SO₂→ PbSO₄

Name:

a substance that will reduce aqueous Iron(III)ions to iron(II)ions.

Name:

a gas that is oxidizing as well as a reducing agent.

Give two test for an oxidising agent.

Rusting of iron involves a chemical reaction which is a combination of:

Identify the oxidising agent (oxidant) in the following reactions

`2"Mg" + "O"_2 -> 2"MgO"`

Which among the following are physical or chemical change?

Evaporation of petrol

What are reducing agents? Give examples.

The oxidizing agent in the equation \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\] is ______.

Hydrogen burns with a flame and sound is heard. - Chemistry