Kurukshetra University 2007 A.M.I.E.T.E Information Technology Chemistry - Question Paper

part I


Q one a) The subsequent ques. are pertaining to the activity series.
Name a metal. [5]

i) Which reacts readily with cold water giving hydrogen.
ii) Which displays hydrogen from dilute sulphuric acid or hydrochloric acid.
iii) Whose hydroxide is a strong base.
iv) Whose carbonate does not decompose on heating.
v) Which displaces iron from iron(III) oxide or ferric oxide.

B) Carry out the subsequent conversions. [5]

1. Formaldehyde --> Methane

2. Calcium Carbide --> Acetylene

3. Acetylene --> Acetylene tetrabromide

4. Acetylene --> Benzene
5.Methyliodide __ Methane


C) (i). describe a fertilizer. [1]
(ii). Name 3 main classes of fertilizers and provide 1 example of every kind. [3]
(iii). provide balanced equations to prepare the subsequent. [3]
a) Superphosphate of lime
b) A fertilizer, using a basic gas and an acidic gas only
c) Nitrolim
iv. select the most improper option and provide cause for your option. [3]
1. Drying agent for ammonia : Quick lime/ Phosphorus
Pentoxide / Conc H2SO4

2. Collection of Nitrogen gas : upward/downward displacement of air/
downward displacement of water.

3. Collection of ammonia gas : upward/downward displacement of air/
downward displacement of water.


D) Sulphuric acid may act as every of the subsequent. [5]

a) An acid forming sulphate when soluble in water.
b) A compound forming sulphate which are insoluble in water.
c) A dehydrating agent.
d) A drying agent
e) An oxidising agent.

Which of the above properties (a) to (e) is shown by sulphuric acid when
i) Conc H2SO4 acid is added to sugar ?
ii) Dil H2SO4 acid reacts with lead nitrate solution ?
iii) Dil sulphuric acid is added to sodium hydroxide solution.
iv) Hydrogen sulphide gas is passed through concentrated sulphuric acid?


E) The subsequent ques. relate to the Nitrogen Cycle. [5]
I) elaborate the soluble nitrogen compounds absorbed by the roots of plants?
II) What type of plants directly absorbs nitrogen from the atmosphere?
III) What term is applied to the conversion of atmospheric nitrogen to useful compounds of nitrogen ?
IV) Compounds such as ammonium nitrate urea and superphosphate are used to change nitrogen and other elements lost from the soil as a outcome of cultivation . What is the common name provided to these compounds?

Earning:   Approval pending.