An alloy, which does not contain copper is
Bell metal
Brozone
Brass
Solder
Destructive distillation of coal does not give
Coke
Gas carbon
Carbides
Coal-tar
Which of the following halides is least stable and has doubtful existence?
CI4
SnI4
GeI4
PbI4
Which one of the oxides is neutral?
CO
SnO2
AnO
SiO2
Ordinary glass is
Sodium silicate
Copper silicate
Calcium silicate
A mixture of calcium and sodium silicates with silica
CO forms a volatile compound with
Nickel
Copper
Sodium
Aluminium
When steam is passed through red hot coke
CO2 and H2 are obtained
CO and B2 are formed
CO and H2 are obtained
Petrol gas is obtained
Which of the following statements is not correct?
Lead salts are slow poisons
Lead metals is used in accumulators
Plumbosolvency increases by the presence of carbonates, sulphate, phosphates etc.
Lead is a soft metal
Identify the correct statement with respect to CO
It combines with water to give carbonic acid
It combines with haemoglobin of the blood
It is a powerful oxidizing agent
It is used to prepare aerated water
Graphite is a good conductor of electricity because it contains
Bonded electrons
Mobile electrons
Strong C = C bonds
Sp2 hybridization