Which of the following element shows maximum valency ?
Carbon
Barium
Nitrogen
Sulphur
D.
Sulphur
Among all the given options, sulphur belongs to VI group of periodic table hence, it has maximum valency.
The volume of oxygen necessary for the complete combustion of 20 L of propane is :
40 L
60 L
80 L
100 L
CH3COOH is weaker acid than H2SO4.It is due to:
more ionization
less ionization
covalent bond
electrovalent bond
A gaseous mixture contains 56 g of N2, 44 g of CO2 and 16 g of CH4. The total pressure of mixture is 720 mm of Hg. The partial pressure of methane is :
75 atm
160 atm
180 atm
215 atm
The solubility of Sb2S3 in water is 1.0 × 10-5 mol/L at 298K. What will be its solubility product?
108 × 10-25
1.0 × 10-25
144 × 10-25
126 × 10-24