Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

The p-Block Elements

Multiple Choice Questions

51.

In which of the following the inert pair effect is most prominent?

52.

The metal that does not give the borax bead test is

Chromium
nickel
lead
manganese

53.

Which one of the following is a good conductor of electricity?

Diamond
Graphite
Silicon
Amorphous carbon

54.

Which one of the following is maximum electronegative?

lead
Silicon
Carbon
Tin

55.

Buckminster-fullerene is a variety of

boron
carbon
ammonia
fluorine

56.

Doping of silicon with boron leads to

n-type semiconductor
p-type semiconductor
superconductor
insulator

57.

The substance not likely to contain CaCO₃ is

marble statue
calcined gypsum
sea shells
dolomite

58.

The electronic configuration of an element C is 1s², 2s², 2p⁶. The formula of substance containing only C will be

C₈
C₄
C₂
C

59.
Number of carbon atoms in kerosene is

C_17-20

C_12-16

C_20-25

C_25-30

C_12-16

Kerosene is a thin, clear liquid formed from hydro carbons obtained from the fractional distillation of petroleum between 150-275°C resulting in a mixture with a density of 0.78-0.81 g/cm³ composed of carbon chains that typically contain between 6 and 16 carbon atoms per molecule.