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ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements
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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 15 Group IV-A and VI-A Elements
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Question # 1
Reaction of HNO, with very dilute Zinc and at low temperature gives
Question # 2
Which is nitrous acid?
Question # 3
Which element of group IV-A does not use d-orbital?
Question # 4
Nitrogen is present in atmosphere by weight
Question # 5
Specific gravity of HNO3 is
Question # 6
Out of all the elements of group V1-A the highest melting and boiling points is shown by the element
Question # 7
Formation of NO from N2 and O2 requires temp
Question # 8
Calcium carbonate contains oxygen in it
Question # 9
Aqua Regia has ration of conc. HCl and HNO3.
Question # 10
Which has garlic like odour?
Question # 11
Which element of group IV-A does not use d — orbital?
Question # 12
Out of all the elements of group V-A , the highest ionization energy is possessed by:
Question # 13
Out of all the elements of group VI-A the highest melting and boiling points is shown by the elements:
Question # 14
Which property is not present in non-methals
Question # 15
Structure of P4 is
Question # 16
The most stable phosphorus allotrope is
Question # 17
Nitrogen is present in atmosphere
Question # 18
Nitrogen is present in atmosphere by weight:
Question # 19
SO2is not absorbed in water directly to or H2SO4because:
Question # 20
Which of the following species has the maximum number of unpaired electrons?
Question # 21
Which catalyst is used in contact process?
Question # 22
Which are metalloid?
Question # 23
Group VI-A elements are called:
Question # 24
Out of all the elements of group V-A, the highest ionization energy is possessed by
Question # 25
Oxidation of NO in air produces
Question # 26
Which element belongs to group V-A?
Question # 27
Among group V-A elements, the most electronegative element is:
Question # 28
Posphorus belongs to a group
Question # 29
SO3 is not absorbed in water directly to or H2SO4 because
Question # 30
Colour of N2O4 is
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