Advertisements
Advertisements
प्रश्न
Is Respiration an endothermic reaction or an exothermic reaction?
Advertisements
उत्तर
Respiration: Exothermic reaction
Respiration is an exothermic reaction in which glucose undergoes combustion to produce carbon dioxide, water and energy.
APPEARS IN
संबंधित प्रश्न
Balance the given equation:
AI(OH)3
AI2O3 +H2O
Write balanced chemical equation from the following information:
An aqueous calcium hydroxide solution (lime water) reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water.
Balance the following equation and add state symbols:
Zn + HCI → ZnCI2 + H2
Aluminium hydroxide reacts with sulphuric acid to form aluminium sulphate and water. Write a balanced equation for this reaction.
What is meant by chemical reaction? Explain with the help of an example.
State one characteristic of the chemical reaction which takes place when lemon juice is added gradually to potassium permanganate solution.
State one characteristic of the chemical reaction which takes place when quicklime is treated with water
Which of the following does not involve a chemical reaction?
Name the various types of chemical reactions.
A colourless lead salt, when heated, produces a yellow residue and brown fumes.
(a) Name the lead salt.
(b) Name the brown fumes.
(c) Write a chemical equation of the reaction involved.
What information do you get from the equation H2+ Cl2 → 2HCl ?
Write your observation for the following chemical reaction and name the product formed :
When ammonium chloride is heated with sodium hydroxide.
Explain the terms with examples.
Balanced equation
What information does the following chemical equation convey?
Zn + H2SO4 → ZnSO4+ H2
Write the balanced chemical equation of the following reaction.
silver nitrate → silver + nitrogen dioxide + oxygen
Write the balanced chemical equation of the following reaction.
iron pyrites(FeS2) + oxygen → ferric oxide + sulphur dioxide
(a) Give only one suitable chemical test to identify the following gases.
- Ammonia
- Sulphur dioxide
- Hydrogen Chloride
- Chlorine
- Carbon Dioxide
- Oxygen
- Hydrogen
(b) Select a basic gas mentioned in Q.1 (a). How is the basic nature suspected?
(c)Select acidic gases from the gases mentioned in Q.1 (a). How is the acidic nature suspected?
(d) State the gas responsible for bleaching action.
(e)Which gas turn blue cobalt chloride paper light pink?
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
Fe2O3 + 2H2 → 2Fe + 3H2O
What is a chemical equation?
Give the characteristic tests for the following gases :
- CO2
- SO2
- O2
- H2
