EASY
Earn 100

Which of the following is not required for combustion to take place?
(a)Carbon dioxide
(b)Fuel
(c)Oxygen
(d)Source of heat

50% studentsanswered this correctly
Important Questions on Chemistry in Daily Life
EASY

EASY
_____ is used to extinguish the fire that involves electrical equipment.
Carbon dioxide | Carbon monoxide | Ignition temperature | Water | Low |
Kilojoule per kg (kJ/kg) | Nuclear | Spontaneous | Hotter | Blue, yellow |

EASY

EASY
The lowest temperature at which a substance catches fire is called its _____ .

MEDIUM

EASY

MEDIUM

MEDIUM

MEDIUM
The type of flame produced by a fuel depends on the proportion of _____ available for burning the fuel.
Choose correct word from below:
Red, white Spontaneous Pinewood Oxygen Rapid

MEDIUM

MEDIUM
Fill in the blank with an appropriate word:
The fire caused by electricity should be put off by _____ (Water/ Sand).

EASY

EASY

EASY

EASY

HARD
Fill in the blank with the correct options from the box.
Fire caused by oil cannot be extinguished with _____.
Carbon dioxide | Carbon monoxide | Ignition temperature | Water | Low |
Kilojoule per kg | Nuclear | Spontaneous | Hotter | Blue, yellow |

EASY

EASY

MEDIUM

EASY

