Class 8 Science

Saira

Asked: November 20, 2020In: Class 8 Science

Which zone of a flame does a goldsmith use for melting gold and silver and why?

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 10

Saira

Asked: November 20, 2020In: Class 8 Science

It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 9

Saira

Asked: November 20, 2020In: Class 8 Science

Explain how CO₂ is able to control fires.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 8

Saira

Asked: November 20, 2020In: Class 8 Science

Name the unit in which the calorific value of a fuel is expressed.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 7

Saira

Asked: November 20, 2020In: Class 8 Science

A liquid fuel, used in homes is __________.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 2 Part: b

Saira

Asked: November 20, 2020In: Class 8 Science

Give reasons: Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminum pipe does not.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 5 Part: c

Saira

Asked: November 20, 2020In: Class 8 Science

Give reasons: LPG is a better domestic fuel than wood.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 5 Part: b

Saira

Asked: November 20, 2020In: Class 8 Science

Give reasons: Water is not used to control fires involving electrical equipment.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 5 Part: a

Saira

Asked: November 20, 2020In: Class 8 Science

Explain how the use of CNG in automobiles has reduced pollution in our cities.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 3

Saira

Asked: November 20, 2020In: Class 8 Science

Fire produced by oil cannot be controlled by __________.

NCERT Solutions for Class 8 Science Chapter 6 Important NCERT Questions 8th Chapter 6 Combustion and Flame NCERT Books for Session 2022-2023 CBSE Board and State Bord Questions No: 2 Part: d

Category: Class 8 Science

Which zone of a flame does a goldsmith use for melting gold and silver and why?

It is difficult to burn a heap of green leaves but dry leaves catch fire easily. Explain.

Explain how CO₂ is able to control fires.

Name the unit in which the calorific value of a fuel is expressed.

A liquid fuel, used in homes is __________.

Give reasons: Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminum pipe does not.

Give reasons: LPG is a better domestic fuel than wood.

Give reasons: Water is not used to control fires involving electrical equipment.

Explain how the use of CNG in automobiles has reduced pollution in our cities.

Fire produced by oil cannot be controlled by __________.

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Category: Class 8 Science

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