Class 10 science important Questions

 

Class 10 science important Questions        

How to clean magnesium ribbon before burning in the air.

Balance the chemical reactions of the following chemical equations and tell each type of reaction.

Potassium bromide + barium iodide -> potassium iodide + barium bromide Zinc carbonate -> zinc oxide + carbon dioxide Hydrogen + Chlorine -> Hydrogen Chloride Magnesium + Hydrochloride -> Magnesium Chloride + Hydrogen

Give the difference in combination and example in the dissociation reaction.

Why dry chlorine gas does not change the color of the litmus sheet?

Write two two uses of washing soda and backing soda.

Who is called dilution.

Explain the following Thermite reaction Mineral Ore The gang

Write four differences between metals and non-metals.

Write the structure of the following.

Propane Butane Benzene Ethen

Write the characteristics of the covalent bracket.

What are the limitations of the classification of dobheriners?

How to clean magnesium ribbon before burning in the air.

Balance the chemical reactions of the following chemical equations and tell each type of reaction.

Potassium bromide + barium iodide -> potassium iodide + barium bromide Zinc carbonate -> zinc oxide + carbon dioxide Hydrogen + Chlorine -> Hydrogen Chloride Magnesium + Hydrochloride -> Magnesium Chloride + Hydrogen

Give the difference in combination and example in the dissociation reaction.

Why dry chlorine gas does not change the color of the litmus sheet?

Write two two uses of washing soda and backing soda.

Who is called dilution.

Explain the following Thermite reaction Mineral Ore The gang

Write four differences between metals and non-metals.

Write the structure of the following.

Propane Butane Benzene Ethen

Write the characteristics of the covalent bracket.

What are the limitations of the classification of dobheriners?