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Chemistry Class 12 Chapter 4
Group 5a and 6a Elements
Test 7
1.
Which catalyst is used in contact process?
Iron oxide
Silver oxide
Vanadium penta oxide
Sulphur trioxide
2.
Laughing gas is?
Nitrogen dioxide
Nitrogen oxide
Dinitrogen oxide
Nitrogen tetra oxide
3.
Which acts only as a oxidizing agent?
Sulphures oxide
Nitro oxide
Nitrogen oxide
Nitric oxide
4.
Most electronegative element in VA group is?
N
Sb
As
P
5.
ch is sublime substance?
Phosphorus penta oxide
Phosphorus tri chloride
Phosphorus penta chloride
Phosphorus trioxide
6.
Sulphuric acid is prepared by?
None of these
Homogeneous catalysis
By both processes
Heterogeneous catalysis
7.
Which is not ore of sulphur?
Cinnabar
Hematite
Stibnite
Galina
8.
Which is not a property of oxygen?
It is sparingly soluble in water
It has two allotropic forms
It reacts with alkalis
It does not reacts with acids
9.
Sulphuric acid does not act as?
Oxidizing agent
Hygroscopic agent
Reducing agent
Dehydrating agent
10.
Which statement about oxygen is incorrect?
It is divalent
It show allotropic form
It combines with non-metal to form covalent bond
It is only found in free nature
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