. Helium is generally preferred as carrier gas over nitrogen and hydrogen because Options: A . &nbspit is inert B . &nbspit has a lower viscosity C . &nbspit doubles up as a party gas for balloons and funny voices D . &nbspall of above

. Helium is generally preferred as carrier gas over nitrogen and hydrogen b

Question

. Helium is generally preferred as carrier gas over nitrogen and hydrogen because

Options:

A . it is inert

B . it has a lower viscosity

C . it doubles up as a party gas for balloons and funny voices

D . all of above

Answer: Option D

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Question 1. . The column is heated to....

Question 2. . Sample retention in the column is measured by....

Question 3. . What are the benefits of decreasing the column internal diameter?....

Question 4. . Column bleeding occurs when....

Question 5. . Sample injection is considered successful if....

Question 6. . Which of the following are not used as stationary phases in a GC column?....

Question 7. . Doubling the column's length increases resolution by a factor of....

Question 8. . Which of the following gases is unsuitable for use as a GC carrier gas....

Question 9. . Column bleeding occurs when....

Question 10. . Doubling the column's length increases resolution by a factor of....

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