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प्रश्न
Name the following:
The products obtained during ‘photosynthesis’ – which is a chemical change.
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उत्तर
Glucose and Oxygen.
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संबंधित प्रश्न
Complete and balance the following chemical equations
Na + H2 O →
What do you observe when :
an iron nail is kept in tap water for few days
Differentiate between in Chemical reaction and chemical equation.
Fill in the blank:
The substances formed as a result of a chemical reaction are called _______
Write true or false :
When potassium iodide solution is added to lead acetate solution a red precipitate is formed.
Write true or false .
A black residue is formed when sugar is heated .
A solution of a substance ‘X’ is used for white washing Name the substance ‘X’ and write its formula.
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Oxygen is a ______ in respiration.
Give an example of a reaction where the following are involved
Light
Name: A brown gas
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper nitrate to nitrogen dioxide
What kind of a change is associated with decaying of a plants?
The chemical change is ______.
When an aqueous solution of potassium chloride is added to an aqueous solution of silver nitrate, a white precipitate is formed. Give the chemical equation of this reaction.
The water we drink is a combination of hydrogen and oxygen.
Which of the following statement is incorrect for a chemical reaction?
The chemical name of baking soda is sodium bicarbonate.
Which is used as a catalyst during the process of hydrogenation of oils?
Write a note on the following:
Curdling of milk
Photosynthesis is a chemical charge. Justify your answer.
