Write aim requirements producer observation and result
Answers
➡Aim:-
To show change in state and colour when a chemical reaction takes place.
To show change in state and colour when a chemical reaction takes place.➡Apparatus:-
lead nitrate solution, potassium iodide solution, test tube, and a conical flask.
lead nitrate solution, potassium iodide solution, test tube, and a conical flask.➡Procedure:-
Take lead nitrate solution in a test tube Add potassium iodide solution to this.
Take lead nitrate solution in a test tube Add potassium iodide solution to this.➡Observation:-
lead nitrate reacts with potassium iodide to give lead iodide and potassium nitrate.
lead nitrate reacts with potassium iodide to give lead iodide and potassium nitrate.The colour of the products is different from that of the reactants.
lead nitrate reacts with potassium iodide to give lead iodide and potassium nitrate.The colour of the products is different from that of the reactants.➡Conclusion:-
Pb(NO3)2 + 2KI → PbI2 + 2KNO3.
Pb(NO3)2 + 2KI → PbI2 + 2KNO3. The change in colour is because lead iodide and potassium nitrate have been formed after the reaction. PbI2 is a yellow ppt. KNO3 is a colourless solution.
Pb(NO3)2 + 2KI → PbI2 + 2KNO3. The change in colour is because lead iodide and potassium nitrate have been formed after the reaction. PbI2 is a yellow ppt. KNO3 is a colourless solution.☆☆here is your another answer :-
Pb(NO3)2 + 2KI → PbI2 + 2KNO3. The change in colour is because lead iodide and potassium nitrate have been formed after the reaction. PbI2 is a yellow ppt. KNO3 is a colourless solution.☆☆here is your another answer :-➡Aim:-
To show the interaction between zinc granules and hydrochloric acid or sulphuric acidformation of H gas)
To show the interaction between zinc granules and hydrochloric acid or sulphuric acidformation of H gas)➡Apparatus:-
Zinc granules, conical flask, test tube, hydrochloric acid / sulphuric acid
Zinc granules, conical flask, test tube, hydrochloric acid / sulphuric acid➡Procedure:-
Take a few zinc granules in a conical flask or a test tube. Add dilute hydrochloric acid or sulphuric acid to this.
Take a few zinc granules in a conical flask or a test tube. Add dilute hydrochloric acid or sulphuric acid to this.Touch the conical flask or test tube.
Take a few zinc granules in a conical flask or a test tube. Add dilute hydrochloric acid or sulphuric acid to this.Touch the conical flask or test tube.➡Observation: -
A gas is evolved and the conical flask is warm
A gas is evolved and the conical flask is warm ➡Conclusion:-
From this we conclude that when a chemical reaction takes place there is a change in the state, colour, and temperature.
From this we conclude that when a chemical reaction takes place there is a change in the state, colour, and temperature.Zn + 2HCl → ZnCl2 + H2↑ + heat .
From this we conclude that when a chemical reaction takes place there is a change in the state, colour, and temperature.Zn + 2HCl → ZnCl2 + H2↑ + heat .Zn + H2SO4 → ZnSO4 + H2↑ + heat.