Air is a/an _________?

A. Compound
B. Element
C. Electrolyte
D. Mixture

Submitted by: Ali Mallah

In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.
Air is an example of gas solution as it is an homogeneous mixture of several gases.

Related Mcqs:

Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?
A. PdCl2
B. Cu2Cl2
C. CuCl2
D. PbCl2
When benzene is heated in air with V2O5 at 450°C yields_________________?
A. Phenol
B. Maleic anhydride
C. Glyoxal
D. Benzoic acid
The spreading of fragrance or scent in air is due to_______________?
A. Diffusion
B. Effusion
C. Attraction with air
D. Low dsensity
Which of the following air pollutants is more dangerous for ozone layer ?
A. CFC
B. CO2
C. CO
D. Oxides of nitrogen
The cooling of molten urea by air in the tower is called______________________?
A. prilling
B. evaporation
C. condensation
D. crystallization
Benzene is heated in air with V2O5 at 450°C it undergoes________________?
A. Substitution reaction
B. Addition reaction
C. Elimination reaction
D. Oxidation reaction
Incomplete oxidation of methane in the limited supply of air forms ?
A. CO2 and H2O
B. CH3OH
C. CO + H2 + C
D. CO + H2O + C
Which of the following noble gases is abundant in air?
A. Neon
B. Helium
C. Argon
D. Methane

Submitted by: Malik Asghar Hussain
Hydrogen Gas can be prepared by thermal decomposition of Methane in the absence of Air at above____
A. 500⁰C
B. 700⁰C
C. 900⁰C
D. 1300⁰C

Submitted by: Aamir khan Hullio
Chromatography is used to separate _________ ?
A. Solution
B. Mixtures
C. Molecules
D. Atoms

Submitted by: Rashid Mehmood