What happens when dilute hydrochloric acid is added to iron fillings? Tick the correct answer.
1. Hydrogen gas and iron chloride are produced.
2. Chlorine gas and iron hydroxide are produced.
3. No reaction takes place.
4. Iron salt and water are produced.
Provide Some Important MCQ Questions for Class 10 Science Chemical Reactions and Equations with Answers?
Explain the following terms with one example each.
(a) Corrosion
(b) Rancidity Solution:
Oil and Fat containing food items are flushed with Nitrogen. Why?
Why do we apply paint on iron articles?
A shiny brown coloured element ‘X’ on heating in the air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.