Which of the following is not hydrolyzed?
CCI4
SiCI4
SnCI4
PbCI4
An alloy, which does not contain copper is
Bell metal
Brozone
Brass
Solder
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
Glass is soluble in
HF
H2SO4
HCIO4
Aqua- regia
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
Which of the following halides is least stable and has doubtful existence?
CI4
SnI4
GeI4
PbI4
Which of the following is the chemically inactive allotropic form of carbon?
Diamond
Coal
Charcoal
Animal charcoal
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
When the destructive distillation of coal is done, the non-volatile residue left in the retort is
Gas carbon
Coke
Coal-tar
Option 4 Goes Here
Destructive distillation of coal does not give
Carbides
