Physical Properties of Carbon Family
Trending Questions
Q. Which of the following is/are not correctly matched?
(i) GeO2− acidic (ii) PbO2− Amphoteric
(iii) CO - Neutral (iv) SiO2− Amphoteric
(i) GeO2− acidic (ii) PbO2− Amphoteric
(iii) CO - Neutral (iv) SiO2− Amphoteric
- (iii) only
- (iv) only
- (i) and (iv)
- (ii) only
Q.
Which of the following will have highest melting point?
B
Al
C
Ge
Q. Which of the following has the smallest atomic radii?
B
C
Al
Si
Q. Which of the following is most electronegative?
C
B
Ge
Al
Q. On doping Ge metal with a little of In, one gets:
- p-type semiconductor
- n-type semiconductor
- insulator
- rectifier
Q. The soldiers of Napolean army while at Alps during freezing winter suffered a serious problem as regards to the tin buttons of their uniform. White metallic tin buttons got converted to grey powder. This transformation is related to:
- a change in crystalline structure of tin
- a change in the partial pressure of O2 in air
- an interaction with N2 of air at low temperature
- an interaction with water vapour contained in humid air
Q.
Among group 14 elements, the one having the lowest melting point is:
C
Si
Sn
Pb
Q. The stability of hydrides of the carbon family is in the order:
- CH4>SiH4>GeH4>SnH4>PbH4
- CH4<SiH4<GeH4<SnH4<PbH4
- CH4>SnH4>GeH4>SiH4>PbH4
- None of these
Q. Which of the following is an incorrect statement?
- SiCl4 is easily hydrolysed
- GeX4 (X=F, Cl, Br, I) is more stable than GeX2
- SnF4 is ionic in nature
- PbF4 is covalent in nature
Q. Choose the correct statement(s):
1. Carbon has unique ability to form pπ−pπ multiple bonds with itself .
2. Pb, Sn donot form pπ−pπ multiple bonds.
3. Pb, Sn form pπ−pπ multiple bonds.
4. Carbon can accomodate more than 4 electron.
1. Carbon has unique ability to form pπ−pπ multiple bonds with itself .
2. Pb, Sn donot form pπ−pπ multiple bonds.
3. Pb, Sn form pπ−pπ multiple bonds.
4. Carbon can accomodate more than 4 electron.
- 1
- 2
- 3
- 4