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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ६

What kind of a change is associated with decaying of a plants?

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प्रश्न

What kind of a change is associated with decaying of a plants?

एक पंक्ति में उत्तर
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उत्तर

Decaying plants is associated with slow change and chemical change.

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अध्याय 3: Changes Around Us - Evaluation [पृष्ठ ४०]

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सामाचीर कलवी Science - Term 2 [English] Class 6 TN Board
अध्याय 3 Changes Around Us
Evaluation | Q VI. 1. | पृष्ठ ४०

संबंधित प्रश्न

State whether the following statement is true or false. In case a statement is false, write the corrected statement.

Iron pipes coated with zinc do not get rusted easily.


FILL IN THE BLANK

On reaction with sulphuric acid solution, barium chloride forms a white precipitate of ........ sulphate.


How is precipitate formation in a chemical reaction indicated?


Write a short note on the information derived from a balanced chemical equation.


State four conditions necessary for chemical reactions to take place.


What is a chemical reaction?


Give an example of a reaction where the following are involved

Pressure


State the type of reactions for the following represent and balance the ones that are not balanced.

Cl2 + 2KBr → 2KCl + Br2 


What is a chemical change? Give two examples of chemical change?


What do you observe? When

Barium chloride is added to sodium sulphate solution


What do you observe when CO2 is passed through lime water first and then a little in excess.


Give reason for the following:

Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts is unnoticeable.


State the following reaction represent oxidation or reduction.

\[\ce{Ag->Ag+}\]


Select the correct answer from the options given below:

State the gaseous product formed, when

An active metal reacts with dilute sulphuric acid.


What is the role of a catalyst in a chemical reaction?


Analogy:

H2O: Water:: NaCl: ______.


Arrange the following statements in correct sequence:

  1. One side is water-loving and other water-hating molecules.
  2. When you agitate the cloth, the dirt is surrounded by many molecules and taken away from the cloth.
  3. The dirt surrounded by the detergent molecules floats in the water making it dirty.
  4. Finally, the cloth is clean.
  5. The detergent molecules have two sides.
  6. Water hating goes and joins with dirt and oil in the cloth while the water-loving joins with the water molecules.

How would you show that the settling of curd is a chemical change?


Write a note on the following:

Fermentation


What are the chemical reactions that occur in everyday life?


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