64 g of an organic compound contains 24 g of carbon, 8 g of hydrogen and the rest oxygen. The empirical formula of the compound is
CH2O
C2H4O
CH4O
C2H8O
Which of the following is an organo-metallic compound?
Lithium ethoxide
Ethyl lithium
Lithium acetate
Lithium carbide
Volume of CO3 obtained by the complete decomposition of 9.85 g BaCO3 is
2.24 L
1.12 L
0.84 L
0.56 L
B.
1.12 L
BaCO3 BaO + CO2
Molecular weight of BaCO3 = 137 + 12 + 16 × 3 = 197 u
197 g BaCO3 gives 22.4 L CO2 at NTP
9.85 g BaCO3 gives L CO2 at NTP
Therefore, volume of CO2 is 1.12 L
A solution of sodium metal in liquid ammonia is a strong reducing agent due to the presence of
sodium atoms
sodium hydride
sodium amide
solvated electron
A mixture containing Cu2+ and Ni2+ can be separated for identification by
passing H2S in acid medium
passing H2S in alkaline medium
passing H2S in neutral medium
passing H2S in dry mixture