An amphoteric oxide among the following is-
1. CO2
2. CO
3. SnO2
4. CaO
reacts with chlorine in presence of sunlight to give:
1.
2.
3.
4.
White lead or basic lead carbonate is:
1.
2.
3.
4.
on complete hydrolysis forms:
1.
2.
3.
4. None of the above.
Pyrosilicate ion is:
1.
2.
3.
4.
Butter of tin is:
1.
2.
3.
4.
Pewter is an alloy of:
1. Pb and Sn
2. Pb, Sb and Sn
3. Pb, Bi and Sn
4. sb, Sn and Cu,Bi,Pb
Ordinary glass is:
1. sodium silicate
2. copper silicate
3. calcium silicate
4. a mixture of calcium and sodium silicates with silica
Tin(IV) chloride (anhydrous) can be obtained:
1. by action of molten tin and
2. by heating tin and conc. and dehydrating the product in an atmosphere of
3. by treating tin with dil. and heating the product to dryness
4. none of the above
Tin cry refers to-
1. Conversion of white to grey tin
2. Tin plating
3. Conversion of white tetrahedral tin to white rhombohedral tin
4. Emission of sound while bending a tin rod
Carbogen is:
1. mixture of
2. used by pneumonia patients for respiration
3. used by victims of for respiration
4. all of the above
Which element of group 14 forms only one hydride?
1. C
2. Si
3. Sn
4. Pb
The thermal stability order for group 14 halides is:
1.
2.
3.
4.
on reaction with gives gas:
1.
2.
3.
4.