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
In group IVA or 14 of the extended form of the periodic table, with increase in atomic number, the metallic character.
Increase
Decrease
Remains the same
First increases then decreases
Which of the following halides is least stable and has doubtful existence?
CI4
SnI4
GeI4
PbI4
If CO2 is passed in excess into limewater, the milkiness first formed disappears due to.
Reversal of the original reaction
Formation of volatile calcium derivative
Formation of water soluble calcium bicarbonate
The solution getting heated by exothermic reaction
An important ore of lead is
Magnesite
Carnallite
Bauxite
Galena
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
When the destructive distillation of coal is done, the non-volatile residue left in the retort is
Option 4 Goes Here
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
