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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ७

True or False – If False give the correct answer Oxygen is necessary for combustion - Science

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प्रश्न

True or False – If False give the correct answer

Oxygen is necessary for combustion

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर

उत्तर

Oxygen is necessary for combustion- True

shaalaa.com
Combustion
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Chemistry in Daily Life - Evaluation [पृष्ठ ७९]

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सामाचीर कलवी Science - Term 3 [English] Class 7 TN Board
पाठ 4 Chemistry in Daily Life
Evaluation | Q III. 4. | पृष्ठ ७९

संबंधित प्रश्‍न

Give reasons.

Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not.


Some words (underlined) in the following sentence is jumbled up. Write them in their correct form.

Slaags is a non-combustible material.


Two glass jars A and B are filled with carbon dioxide and oxygen gases respectively. In each jar, a lighted candle is placed simultaneously. In which jar, will the candle remain lighted for a longer time and why?


Write True/False against the following statement and also correct the false statement.

A physical process in which a substance reacts with oxygen to give off heat is called combustion.


Write True/False against the following statement and also correct the false statement.

Increased concentration of nitrogen in air is believed to cause global warming.


Any reaction that involves reaction with oxygen is called reaction ______. 


Give one example of spontaneous combustion.


Fill in the blanks using the word given in the box.

ignition petrol combustion calorific value combustible combustible

 Wood, paper, CNG are ______ substances.


Fill in the blanks using the words given in the box.

ignition petrol combustion calorific value combustible combustible

Ignition temperature of ______ is lower than that of wood.


Fill in the blanks using the words given in the box.

ignition petrol combustion calorific value combustible combustible

The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its ______.


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