B.Sc. First year Undergraduate degree course Semester first Inorganic chemistry

paper I

Chapter - p-Block elements mcq

1.   Lithium shows similar properties with…
a)   Mg
b)   Al
c)   Si
d)   Na

2.   Boron shows similar properties with…
a)   Na
b)   Mg
c)   Al
d)   Si

3.   The reducing character increases from B to Tl because…
a)   Ionization Potential increases
b)   Ionization Potential decreases
c)   Ionization Potential remains constant
d)   None of above

4.   Among the following which is correct statement related to Fazan’s rule?
a)   Smaller the size of the cation, the greater is the tendency for covalent bonding.
b)   Greater the size of the cation, the greater is the tendency for covalent bonding.
c)   Smaller the size of the cation, the smaller is the tendency for covalent bonding.
d)   Greater the size of the cation, the smaller is the tendency for covalent bonding.

5.   Among the following which one forms Covalent Compound?
a)   Aluminium
b)   Boron
c)   Silicon
d)   Germanium

6.   The chemical formula for diborane is…
a)   B₃H₅
b)   B₂H₅
c)   B₃H₆
d)   B₂H₆

7.   In group 14 the atomic radius from top to bottom…
a)   Decreases
b)   Increases
c)   Remains same
d)   None of above

8.   Among the C, Si, Ge, Sn, Pb which one has highest Ionization Potential?
a)   Ge
b)   Pb
c)   Si
d)   C

9.   In group 14 elements which element have highest Melting & Boiling Point?
a)   Carbon
b)   Silicon
c)   Tin
d)   Lead

10.   Among the following which element has lowest Melting Point?
a)   Carbon
b)   Silicon
c)   Germenium
d)   Tin

11.   The oxidation state of the Carbon atom is…
a)   -2
b)   +2
c)   +4
d)   -4

12.   Among the following which element is known to be distinctly Metal?
a)   Carbon
b)   Silicon
c)   Germanium
d)   Lead

13.   From Carbon to Lead electronegativity get…
a)   Decreases
b)   Increases
c)   Remains constant
d)   Remains unchanged

14.   From Carbon to Lead stability of Hdrides…
a)   Increases
b)   Decreases
c)   Remains unchanged
d)   Constant

15.   Elements of group 14 forms
a)   Ionic Hydrides
b)   Radical Hydrides
c)   Covalent Hydrides
d)   None of above

16.   Covalent character from Carbon to Lead…
a)   Increases
b)   Decreases
c)   Remains same
d)   None of above

17.   Among the following the incorrect sentence related to CO is…
a)   CO is Odorless
b)   CO is Colorless
c)   CO is Toxic
d)   CO is Colorful