11. Choose the best: NCERT- book back one mark questions - I

6 m.

Choose the best answer:

1. \(Fe_2O_3\) + \(2Al\) → \(Al_2O_3\) + \(2Fe\)
The above reaction is an example of a

2. Translate the following statements into chemical equations and then balance them.

Hydrogen sulphide gas burns in air to give water and sulpur dioxide.

\(H_2S\) + \(6O_2\) → \(2H_2O\) + \(2SO_2\)
\(2H_2S\) + \(3O_2\) → \(2H_2O\) + \(2SO_2\)
\(2H_2S\) + \(3O_2\) → \(2H_2O\) + \(2SO_3\)
\(2H_2S\) + \(3H_2\) → \(2H_2O\) + \(2SO_2\)
\(2H_2S\) + \(3O_2\) → \(2H_2O_2\) + \(2SO_2\)

Login or Fast registration

Did you find an error?

Register for free to see more content

Register for free to see more content