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Chemistry Class 12 Chapter 5
The Halogens and the Noble Gases
Test 10
1.
Which is not the property of fluorine?
Most reactive
Homologous series is present
High 1st electronegtivity
High lattice energy
2.
Bleaching powder is not use as?
Preparation of chloroform
Sterilization of water
In textile as bleaching agent
In neuterlization of liquid
3.
For radioactivity of cancer which noble gas is used?
Ar
Kr
Xe
Ra
4.
He is used in?
All of these
Weathering balloons
Welding
Traffic signals
5.
Oxidation power increase as atomic radii?
Constant
Decreases
Increases
Have no effect
6.
In disproportion reaction?
Oxidation and reduction are directly related to product formed
Only oxidation occurs
Only reduction occurs
Both simultaneously occur
7.
Glass lasers is the mixture of?
He+Ar
Ne+Kr
Ne+Ar
He+Ne
8.
Existing oxides of fluorine are?
4
5
2
3
9.
The binary compound of X & H are?
All of these
Alkalis
Halides
Hydrides
10.
Greater number of O atom in oxyaacids,more is the?
Thermal stability
Melting point
Molecular size
Ionization energy
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