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Chemistry Class 12 Chapter 1Periodic Classification of Elements and PeriodicityTest 7
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Chemistry Class 12 Chapter 1
Periodic Classification of Elements and Periodicity
Test 7
1.
Which has the highest value of ionization energy?
O
N
F
He
2.
Which of the following elements has greater first ionization energy?
N
O
C
B
3.
Ionization energy in the index to the metallic character the element which have?
High ionization energy-no metal
Intermediate-metalloid
Low energy-metal
All of the above
4.
Which halogen has greater value of electron affinity?
I
F
Cl
Br
5.
Which statement about oxidation number is wrong?
This trend increases along the period
It is the apparent charge in the atom in the compound
Maximum oxidation number is +7
Transition element show more than one oxidation states
6.
Which is the most electropositive in the periodic table?
Calcium
Barium
Potassium
Cesium
7.
Verify correct statement?
Mg ion is smaller than its atom
Mg ion is greater than its atom
Cl ion and atom both are equal in size
Cl ion is smaller than its atom
8.
Which has the greater first ionization energy?
Boron
Lithium
Beryllium
Sodium
9.
Keeping in view the size of atom, which statement is correct?
Lu greater than Cu
Mg greater than Sr
Ba greater than Mg
Ca greater than Br
10.
Concept of triads was introduced by?
Newland
Dobereiner
Mendeleev
Al-razi
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