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Oxides and Oxoanions

A non metal A...

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A non metal A which is the largest constituent of air , when heated with H2 in 1:3 ratio in the pesence of a catalyst (Fe)gives a gas B .on heating with O2,ot gives an oxide C.if this oxide is passed into water in the presence of air, it gives an acid D which acts as a strong oxidising agent .identify A,B,C,D.

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Question 59
A non-metal A, which is the largest constituent of air, when heated with $H_{2}$ in 1:3 ratio in the presence of catalyst $Fe$ , gives a gas B.
On heating with $O_{2}$ , it gives an oxide C. If this oxide is passed into water in the presence of air it gives an acid D, which acts as a strong oxidising agent.

(a) Identify A, B, C and D
(b) To which group of periodic table does this non-metal belong?

Q. On heating compound

(A)

(B)

which is a constituent of air. This gas when treated with

3

mol of hydrogen

(H_{2})

in the presence of a catalyst gives another gas

(C)

which is basic in nature. Gas

C

on further oxidation in moist condition gives a compound

(D)

which is a part of acid rain. Identify compounds

(A)

(D)

and also give necessary equations of all the steps involved.

Q. Write four characteristics of a neutral organic compound '

A

C_{2} H_{6} O

which gives the following reactions:
(i) Gives an acidic compound '

B

' on oxidation with acidified potassium dichromate.
(ii) Compound '

A

' on heating with '

B

' in presence of concentrated

H_{2} {S O}_{4}

gives a sweet smelling substance '

C

'.
Identify the compounds

A, B, C

. Give the equation of the related reactions.

Q.
Iron sulphide is heated in air to form

A

, an oxide of sulphur. A is dissolved in water to give an acid. The basicity of this acid is:

Q. A non-metal X which is the largest constituent of air combines with hydrogen when heated in the presence of iron as catalyst to form a gas Y. When gas Y is treated with sulphuric acid, it forms a compound Z which is used as a chemical fertiliser.

(a) What are X, Y and Z?
(b) To which group of periodic table does X belong?
(c) Name the period of periodic table in which X is placed.
(d) Which element is placed just before X in the period?
(e) Which element is placed just after X in the period?

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