Mashaal Masha
Mashaal Masha
 Oct 20, 2022
0
Choose the correct options for the following questions.
Keeping in view the size of atoms, which order is the correct one?
Difficulty: Easy
A:
Mg > Sr
B:
Ba > Mg
C:
Lu > Ce
D:
CI > I
Mark the correct statement:
Difficulty: Easy
A:
$Na^{+}$ is smaller than Na atom
B:
$Na^{+}$ is larger than Na atom
C:
$Cl^{-1}$ is smaller than Cl atom
D:
$Cl^{-}$ (ion) and Cl (atom) are equal in size
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Mark the correct statement:
Difficulty: Easy
A:
All lanthanides are present in the same group
B:
All halogens are present in the same period
C:
All the alkali metals are preset in the same group
D:
All the noble gases are present in the same period
Which statement is incorrect?
Difficulty: Easy
A:
All the metals are good conductor of electricity
B:
All the metals are good conductor of heat
C:
All the metals form positive ion
D:
All the metals form acidic oxides
Which statement is incorrect?
Difficulty: Easy
A:
Hydrogen resembles in properties with I-A, IV-A and V-A elements.
B:
Hydrogen resembles in properties with II-A, IV-A and V-A elements.
C:
Hydrogen resembles in properties with II-A, IV-A and VI-A elements.
D:
Hydrogen resembles in properties with II-A, III-A and VII-A elements.
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Mark the correct statement:
Difficulty: Easy
A:
The ionization energy of calcium is lower than that of barium.
B:
The ionization energy of calcium is lower than that of magnesium.
C:
The ionization energy of calcium is higher than that of beryllium.
D:
The ionization energy of calcium is lower than that of strontium.
Mark the correct statement:
Difficulty: Easy
A:
Electron affinity is a measure of energy required to remove the electron.
B:
Ionization energy is a measure of energy asked by removing an electron
C:
Electron affinity is a measure of energy required to excite an electron.
D:
Electron affinity is a measure of energy released by removing an electron.
Mark the incorrect statement
Difficulty: Easy
A:
Metallic character increases down the group.
B:
Metallic character increases along a period.
C:
Metallic character decreases along a period.
D:
Metallic character remains the same down the group.
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Mark the correct statement:
Difficulty: Easy
A:
Covalent character of metal halides increases from left to right in a period.
B:
Boiling points of Group IV-A hydrides decrease down the group.
C:
Ionic character of hydrides increases from left to right in a period.
D:
The basicity of group II-A oxides decreases on descending the group.
Modern Periodic Table is based upon periodic function:
Difficulty: Easy
A:
Atomic mass
B:
Mass number
C:
Nuclide number
D:
Atomic number

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