CCl4
CH3COOH
CHCl3
C2H6
CH3OH
Correct answer is E
No explanation has been provided for this answer.
When ammonia and hydrogen ion bond together to form ammonium ion, the bond formed is called
ionic bond
electrovalent bond
covalent bond
co-ordinate bond
hydrogen bond
Correct answer is D
When one atom supplies both electrons in forming a two-electron bond, it is known as a dative covalent or coordinate bond. If two atoms contribute one electron each, it is known as a simple covalent bond. when ammonia and hydrogen ions bond together to form ammonium ion, the type of bond formed is a dative/coordinate covalent bond, because ammonia supplied both electrons with hydrogen contributing nothing.
Which of the following is not a member of the homologous series of the paraffins (alkanes)?
C3H8
C5H12
C7H16
C15H32
C24H48
Correct answer is E
Which of the following reactions does not take place in the smelting of iron in a blast furnace?
CaCO3(s)
C(s) + O2(g)
3FeCO(s) + 2OCO2(g)
SiO2(s) + CaO(s)
CO2(g) + C(s)
Correct answer is C
No explanation has been provided for this answer.
Which of the following gases may not be dried with concentrated sulphuric acid?
HCl
N2
Cl2
SO2
NH3
Correct answer is E
No explanation has been provided for this answer.