Question

Give one example of each.
1. Liquid oxidising agent
2. Gaseous reducing agent
3. Most preferred element/metal for preparing hydrogen in lab.

Answer 1

Answer:

1.WATER[H2O]

2.OXYGEN[O2]

3.NICKEL

#BAL

Explanation:

Answer 2

Hydrogen Peroxide

H2 gas

Zinc

Explanation:

1) Hydrogen Peroxide (H2O2) is a colourless liquid and a very powerful oxidising agent.

2) Hydrogen gas is a reducing agent when it reacts with non-metals and an oxidizing agent when it reacts with metals.

3) Granulated zinc reacts with most acids to release Hydrogen gas. Granulated zinc gives more surface area for the acid to act, so hydrogen is formed faster. Also, granulated zinc has copper as an impurity, which catalyses the reaction.