Which of the following noble gases is abundant in air?
Which of the following noble gases is abundant in air?A. Neon
B. Helium
C. Argon
D. Methane
B. Helium
C. Argon
D. Methane
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LPG consists of mainly:___________?
LPG consists of mainly:___________?A. Methane, Ethane and Hexane
B. Ethane, Hexane and Nonane
C. Methane, Hexane and Nonane
D. Methane, Butane and PropaneThe autonomic nervous system innervates all of these except?
The autonomic nervous system innervates all of these except?
A. Cardiac muscles
B. Skeletal muscles
C. Smooth muscles
D. noneWhich of the following diseases is caused by virus?
Which of the following diseases is caused by virus?
A. Small pox
B. Tuberculosis
C. Malaria
D. CholeraAir is a/an _________?
Air is a/an _________?A. Compound
B. Element
C. Electrolyte
D. MixtureIn 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.The number of peaks obtained in mass spectrometry shows____________________?
The number of peaks obtained in mass spectrometry shows____________________?A. Relative abundance
B. Average mass of element
C. Number of isotopes
D. Relative isotopic massIsotopes differ in_________________?
Isotopes differ in_________________?A. properties which depend upon mass
B. arrangement of electrons in orbitals
C. chemical properties
D. all of the above