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Nitrogen has how many oxides?
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
Which of these is not an Allotrope of Phosphorus?
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
Both $\rm{O_{2}}$ and $\rm{O_{3}}$ are oxidizing agents but $\rm{O_{3}}$ is preferred because
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
Which one of the following does not have allotropic forms
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
Which member of VA group has no stable isotope?
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
$\rm{H_{2}SO_{4}}$ is used in which industry?
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
In rhombic sulphur how many atoms are in each molecule?
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
Which of the following has allotropic forms
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
In which of the following the oxidation state of S is the highest?
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
$\rm{H_{3}PO_{3}}$ is a
NET
NUST Entry Test
Chemistry
Group VA and VIA Elements
Chemical formula of laughing gas is
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NUST Entry Test
Chemistry
Group VA and VIA Elements
Which of the following does not occur in Free State?
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NUST Entry Test
Chemistry
Group VA and VIA Elements
Boric acid is used in which of the following
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Aluminum is of which nature
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Ability of carbon to form long chains and rings is known as
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Silicon can be obtained from which of the following compounds?
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Chemical formula of powder used in carom board is?
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Which of the following is used to make container for nitric acid?
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Which one of the following is an acid?
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Which one is not a type of Boric Acid?
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Which element among the following forms a protective oxide coating on exposure to air?
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NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Borax bead test is used to separate
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Which one of the following is metalloid?
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NUST Entry Test
Chemistry
Group IIIA and IVA Elements
What is the chemical name of Sandur?
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
Aluminum reacts with $\rm{H_{2}SO_{4}}$ to produce
NET
NUST Entry Test
Chemistry
Group IIIA and IVA Elements
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