Related Questions

Which one of the following carbon compounds will not give a sooty flame?
A Benzene
B Hexane
C Napthalene
D Anthracene
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes
A Poor visibility due to sky darkening
B Irritation in eyes
C Respiratory trouble
D All of the above
Actual flame temperature is always lower than the adiabatic flame temperature, because there is
A No possibility of obtaining complete combustion at high temperature
B Always loss of heat from the flame
C Both A & B
D Neither A nor B
The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in
A Raman spectra
B Absorption spectra
C Emission spectra
D Fluorescence
The word "flame means:
A passion
B burst
C fire
D light
If 6121135 represents 'flame' then 21215120 represents __
A voice
B bald
C bloat
D castle
Which of the following word will be the proper replacement of the underlined word this sentence- "Following the killing of Sergeant Zohurul Haque in prison by the Ayub khan government in 15 February 1969, a flame of protest spread throughout erstwhile Est Pakistan."
A dispute
B gripe
C demonstration
D rebellion
Flame cell নামক কোষের সাহায্যে রেচন সম্পাদন করে-
A Platyhelminthes পর্বের শ্রেণী
B Porifera পর্বের শ্রেণী
C Cnidaria পর্বের শ্রেণী
D Namotoda পর্বের শ্রেণী

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