Helium gas is used in gas balloons instead of hydrogen gas because it is

A Lighter than hydrogen
B More abundant than hydrogen
C Non-combustible
D More stable

Correct Answer: Non-combustible

Helium gas is lighter than air, therefore, a helium balloon rises, it is known as a noble gas and is therefore not reactive. Hydrogen is also lighter than air and even lighter than helium. However, Hydrogen is not used in balloons because it is highly explosive and flammable.
Bissoy MCQ
#General Knowledge #Chemistry

Related Questions

Hydrogen is used instead of Helium to fill balloons for meteorology because
A of its low-density
B It is almost insoluble in water
C It is not very reactive under normal conditions
D It can be prepared easily
Helium gas is filled in balloons because
A Its atomic number is 2
B It is lighter than air
C It is one of the constitutents of water
D It is a noble gas
The gas used for filling weather balloons is
A Helium
B Hydrogen
C Air
D Nitrogen
Helium is not Inflammable .................. therefore safer than hydrogen
A that Is
B and
C but is
D and it
In the diving apparatus, helium is used along with oxygen, because it is
A Easily available
B Not soluble in blood at high pressure
C Lighter than nitrogen
D Completely miscible with oxygen
A balloon filled with helium rises in air because
A Air exerts an upward force on the balloon
B The balloon is weightless
C Helium is less dense than air
D Helium pushes down on the air below the balloon
Helium is added to the oxygen supply of deep sea divers because it is
A Less poisonous than nitrogen
B Lighter than nitrogen
C Readily miscible with oxygen
D Less soluble in blood than nitrogen at high pressure
Defining green banking is relatively easy. It means promoting environment -friendly practices and reducing your carbon footprint from your banking activities. This comes in many forms : using online banking instead of branch banking; paying bills online, opening up CDs (certificates of deposit) and money market accounts at online banks instead of large multi-branch banks. A green bank takes the biggest steps to support local green initiatives. Any combination of the above personal banking practices can help the environment. In this respect, online banks and smaller community banks have better track records than larger banks .However, these larger banks may be induced to go green . According to the passage, larger, multi -branch banks .
A can never become green banks .
B can become green banks if they reduce the number of branches and eliminate the use of paper .
C can become green banks if they can greatly reduce or eliminate carbon footprint form their banking activities.
D can become green banks if they support local green initiatives
Helium gas constant volume thermometer is suitable for the measurement of a temperature of __________ °C.
A [

A.

B.

B > 0
C > 800
Helium-mercury method can be used to determine the __________ of the catalyst particle.
A Pore volume
B Solid density
C Porosity
D All of the above

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