Question (1): The properties of an element in
the periodic table depends on its, ________. |
1. |
atomic size |
2. |
atomic mass |
3. |
electronic configuration |
4. |
number of protons |
|
Ans: 3 |
|
Question (2): An element has configuration 2, 8,
1. It belongs to, _________. |
1. |
1 group and 3rd period |
2. |
3 group and 1st period |
3. |
1 group and 8th period |
4. |
17 group and 3rd period |
|
Ans: 1 |
|
Question (3): The number of electrons in the
valence shell is equal to its ________. |
1. |
atomic mass |
2. |
group number |
3. |
period number |
4. |
atomic volume |
|
Ans: 2 |
|
Question (4): The non-metallic element present
in the third period other than sulphur and chlorine is _______. |
1. |
oxygen |
2. |
fluorine |
3. |
nitrogen |
4. |
phosphorus |
|
Ans: 4 |
|
Question (5): At the end of each period the
valence shell is __________. |
1. |
incomplete |
2. |
half filled |
3. |
singly occupied |
4. |
completely filled |
|
Ans: 4 |
|
Question (6): The family of elements having
seven electrons in the outermost shell is ______. |
1. |
alkali metals |
2. |
alkaline earth metals |
3. |
halogens |
4. |
noble gases |
|
Ans: 3 |
|
Question (7): Which of the following factors
does not affect the metallic character of an element? |
1. |
Atomic size |
2. |
Ionisation potential |
3. |
Electronegativity |
4. |
Atomic radius |
|
Ans: 3 |
|
Question (8): The family of elements to which
potassium belongs is _________. |
1. |
alkali metals |
2. |
alkaline earth metals |
3. |
halogens |
4. |
noble gases |
|
Ans: 1 |
|
Question (9): The modern periodic table is given
by ________ |
1. |
Mendeleev |
2. |
Einstein |
3. |
Bohr |
4. |
Mosley |
|
Ans: 4 |
|
Question (10): Elements belonging to groups 1 to
17 are called __________. |
1. |
noble gases |
2. |
normal elements |
3. |
transition elements |
4. |
inner transition elements |
|
Ans: 2 |
|
Question (11): A liquid non-metal is
___________. |
1. |
phosphorous |
2. |
mercury |
3. |
bromine |
4. |
nitrogen |
|
Ans: 3 |
|
Question (12): The first alkali metal is
_________. |
1. |
hydrogen |
2. |
lithium |
3. |
sodium |
4. |
francium |
|
Ans: 2 |
|
Question (13): A purple coloured solid halogen
is ________. |
1. |
chlorine |
2. |
bromine |
3. |
iodine |
4. |
astatine |
|
Ans: 3 |
|
Question (14): Lanthanides and actinides are
also called ___________. |
1. |
normal elements |
2. |
transition elements |
3. |
noble gases |
4. |
inner transition elements |
|
Ans: 4 |
|
Question (15): The family of elements to which
calcium belongs is __________. |
1. |
alkali metals |
2. |
alkaline earth metals |
3. |
halogens |
4. |
noble gases |
|
Ans: 2 |
|
Question (16): The least reactive element in
group 17 is ___________. |
1. |
fluorine |
2. |
chlorine |
3. |
bromine |
4. |
iodine |
|
Ans: 4 |
|
Question (17): The valency of chlorine with
respect to oxygen is __________. |
|
Ans: 4 |
|
Question (18): The number of shells in the
elements of 3rd period is __________. |
|
Ans: 3 |
|
Question (19): Four elements along a period have
atomic number (11, 13, 16 and 17). The most metallic among these has an atomic
number of __________. |
|
Ans: 1 |
|
Question (20): Six elements A, B, C, D, E and F
have the following atomic numbers (A = 12, B = 17, C = 18, D = 7, E = 9 and F =
11). Among these elements, the element, which belongs to the 3rd
period and has the highest ionisation potential, is __________. |
|
Ans: 3 |
|
Question (21): A factor that affects the
ionisation potential of an element is __________. |
1. |
atomic size |
2. |
electron affinity |
3. |
electro-negativity |
4. |
neutrons |
|
Ans: 1 |
|
Question (22): The element, which has the
highest electron affinity in the 3rd period is _________. |
|
Ans: 4 |
|
Question (23): The element, which has zero
electron affinity in the 3rd period is __________. |
|
Ans: 3 |
|
Question (24): The statement that is not true
about electron affinity is |
1. |
It causes energy to be released |
2. |
It causes energy to be absorbed |
3. |
It is expressed in electron volts |
4. |
It involves formation of an anion |
|
Ans: 2 |
|
Question (25): Down a group, the electron
affinity __________. |
1. |
increases |
2. |
decreases |
3. |
remains same |
4. |
increases and then decreases |
|
Ans: 2 |
No comments:
Post a Comment