What is the maximum number of electrons that an f-orbital can accommodate?
What is the maximum number of electrons that an f-orbital can accommodate? A. 2 B. 6 C. 7…
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In which of these groups will all the substances be insoluble in water?
In which of these groups will all the substances be insoluble in water? A. Na2CO3, KNO3,(NH4)2C03 B. NaHCO3,…
A substance is said to be hygroscopic when it
A substance is said to be hygroscopic when it A. absorbs atmospheric moisture and then goes into solution…
Chromatography is used to separate components of mixtures which differ in their rates of
Chromatography is used to separate components of mixtures which differ in their rates of A. diffusion B. migration…
If two elements X and Z with electronic configurations 2,8.3 and2,8,6 respectively combine, the compound…
If two elements X and Z with electronic configurations 2,8.3 and2,8,6 respectively combine, the compound formed will have…
The following gases are diatomic EXCEPT
The following gases are diatomic EXCEPT A. Fluorine B. Helium C. Hydrogen D. Nitrogen E. Oxygen Correct Answer:…
Which of these is NOT a physical property f water?
Which of these is NOT a physical property f water? A. Can be used to dissolve organic substances…
During the electrolysis of sodium Chloride solution, hydrogen is discharged at the carbon cathode because
During the electrolysis of sodium Chloride solution, hydrogen is discharged at the carbon cathode because A. hydrogen ions…
Brownian motion explains
Brownian motion explains A. Boyle’s law B. Collision theory C. Laws of chemical combination D. Molecular motion in…
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces
The reaction of hydrochloric acid and calcium trioxocarbonate (IV) produces A. calcium chloride, carbon (IV) oxide and water…