Carbon and its Compounds — Science STD 10 — Question

When potassium nitrate is heated, it decomposes into potassium nitrite and oxygen. Write a balanced equation for this reaction and add the state symbols of the reactants and products.

What happens when methane (natural gas) burns in air? Write the chemical equation of the reaction involved.

Name the plant organs which are:
Positively hydrotropic.

Write down the reasons, effects and remedial measures taken for any two disasters experienced by you.

Which substance is used to remove chlorophyll from a green leaf during photosynthesis experiments?

…………. process is used for the purification of bauxite.

Electric generator converts………..energy into electric energy.

Classify the following into renewable and non-renewable sources of energy:
Coal, Wind, Tides, Petroleum, Wood, Natural gas.

I live in your small intestine. Pseudocoelom is present in my thread like body. In which phylum will you include me?

Take down this figure into your answer book and complete the path of the ray.