Advertisements
Advertisements
Question
Select the correct answer from A, B, C, D & E for the statement given below:
In Landolt’s experiment – the form in which the chemical energy stored up in the reactants __________ is released.
Options
Solid
Vaporization
Ion
Gases
Heat
Advertisements
Solution
In Landolt’s experiment – the form in which the chemical energy stored up in the reactants Heat is released.
APPEARS IN
RELATED QUESTIONS
What do you observe when, barium chloride solution is mixed with sodium sulphate solution ?
When magnesium is burnt in air, there is an increase in mass after the reaction.
What is mass ?
If an object weighs 6 kg on earth. What will be its weight on moon ?
Give reason for the following.
Electricity is not considered matter.
Fill in the blank:
Matter is anything that has............. and occupies .............
Name the law of chemical combination which was given by Lavoisier.
The law of conservation of mass was given by :
Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium
sulphate. In an experiment, 15.95 g of copper sulphate reacted with 8.0 g of sodium hydroxide to form
9.75 g of copper hydroxide and 14.2 g of sodium sulphate. Which law of chemical combination is illustrated by this data ? Give reason for your choice.
Potassium chlorate decomposes, on heating, to form potassium chloride and oxygen. When 24.5 g of potassium chlorate is decomposed completely, then 14.9 g of potassium chloride is formed. Calculate the mass of oxygen formed. Which law of chemical combination have you used in solving this problem ?
State the ‘law of conservation of mass’.
State the main points of Landolt’s experiment for experimental evidence of the law.
Select the correct answer from A, B, C, D & E for the statement given below:
The process of change of a liquid into vapour, [gas] on heating.
Complete the statement by filling the blank with the correct word given below.
The law of conservation of mass is strictly valid if mass and _________ are considered together.
Match the following.
| Law of conservation of mass | Sir William Crookes |
| Law of constant proportion | James Chadwick |
| Cathode rays | Joseph Proust |
| Anode rays | Lavoisier |
| Neutrons | Goldstein |
Why does a light paddle wheel placed in the path of cathode rays begin to rotate, when cathode rays fall on it?
The chemical symbol for nitrogen gas is ______.
