Advertisements
Advertisements
प्रश्न
Classify the following as physical or chemical properties
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
Advertisements
उत्तर
Chemical property
APPEARS IN
संबंधित प्रश्न
Write a short note on the information derived from a balanced chemical equation.
Fill in the blank:
The basic conditions necessary for a chemical reaction is _______
Write true or false :
When iron and sulphur are heated together a grey mass is formed which is attracted by a magnet .
Name the type of chemical reaction shown by the following equation:
2Mg + O2 → 2MgO
Give reason for the following:
Blue solution of copper sulphate changes to green when a piece of iron is added to this solution.
Explain,giving one example of the following chemical changes:
Reversible reaction
State the type of reactions for the following represent and balance the ones that are not balanced.
NaOH + HCl → NaCl + H2O
What do you observe when Cl2 is passed through potassium iodide (KI) solution.
Select the correct answer from the options given below:
State the gaseous product formed, when
An active metal reacts with dilute sulphuric acid.
Burning of paper is a ______ change.
