Which of the following gases can be used for storage of fresh sample of an oil for a long time?

Carbon dioxide or Oxygen

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Nitrogen or Oxygen

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Carbon dioxide or Helium

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Helium or Nitrogen

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Solution

The correct option is C Helium or Nitrogen
Helium or Nitrogen can be used to store fresh oil for longer period of time because both are non reactive at standard temperature and pressure.

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Similar questions

Q. Question 14

Which of the following gases can be used for storage of fresh sample of an oil for a long time?

a) Carbon dioxide or oxygen
(b) Nitrogen or oxygen
(c) Carbon dioxide or helium
(d) Helium or nitrogen

Q. A scientist performed experiments to analyse the two samples of air given to him:
'Air Sample A' and 'Air Sample B'. The results of analysis of these two air samples are given below:

Air Sample A			Air Sample B
Oxygen	:	21%	Oxygen	:	16.4%
Carbon dioxide	:	0.04%	Carbon dioxide	:	4.4%
Water vapour	:	A little	Water Vapour	:	A lot

(a) Which air sample, A or B, represents 'exhaled air'? Why?
(b) Which air sample, A or B, represents 'inhaled air'? Why?

The gases which strictly follow the general equation

(P V = n R T)

are called ideal or perfect gases. Actually, there is no gas which is perfect or ideal. A real gas is one which actually exists, whether it obeys gas laws strictly or not. Under ordinary conditions, only those gases nearly behave as ideal or perfect which have very low boiling points such as nitrogen, hydrogen, etc. The most easily liquefiable and highly soluble gases such as ammonia, carbon dioxide, sulphur dioxide show large deviations.
A very convenient method of studying deviation of real gases from ideal behaviour is through a compressibility factor

(Z)

Z = \frac{P V}{n R T}

(i)

Z = 1

, for ideal gases.
(ii)

Z \neq 1

, for real gases.

Consider the equation

Z = \frac{P V}{n R T}

; which of the following statements is correct?

Q. Which contains more molecules, 10g of sulphur dioxide (SO₂) or 10g of oxygen (O₂)? How?

Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equations for the reactions from which the following gases are obtained, using dilute sulphuric acid as one of the reactants:
(i) Hydrogen
(ii) Carbon dioxide
(iii) Sulphur dioxide

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Which of the following gases can be used for storage of fresh sample of an oil for a long time?

The correct option is C Helium or NitrogenHelium or Nitrogen can be used to store fresh oil for longer period of time because both are non reactive at standard temperature and pressure.

The correct option is C Helium or Nitrogen
Helium or Nitrogen can be used to store fresh oil for longer period of time because both are non reactive at standard temperature and pressure.