Chemical reaction and equation part 1
Chemical reaction and equation Class 10 Science – Top 20 Questions
- Why is respiration exothermic?
- What are the products of respiration?
- Is burning of magnesium exothermic process?
- Is magnesium oxide acidic, basic or neutral?
- What is the colour of red litmus paper in Mg(OH)2?
- Why do we clean magnesium ribbon with sand paper?
- Why should we balance chemical equation?
- What happens when iron reacts with steam?
- Which acids are formed when SO2 and SO3 are dissolved separately in water?
- What is limestone?
- What is quick lime?
- What is slaked lime?
- What is lime water?
- What is the colour of NO2(g) ?
- Which compound of silver is used in photography?
- What happens when iron nails are put in copper sulphate solution?
- Which is more reactive, iron or copper?
- When two compounds exchange their ions to from two new compounds and one of them is insoluble is called reaction.
- What is rancidity?
- Why do we keep food in refrigerators?
