Inter Part.2 YEAR CHEMISTRY
GUESS
PAPER Annual 2019
Short Questions
1. Periods in periodic table merits and demerits of
Mendeleev s’ periodic tables.
2. Why 1st-electron affinity is negative and 2nd is
positive?
3. Why the oxidation state of noble gases is usually zero?
4. Amphoteric oxides. And question number 7 - 13 from
exercise.
5. Why aqueous solution of Na2CO3 is alkaline in nature.
6. Give advantages of Down’s cell.
7. Why lime water tums milky with CO2 but becomes clear with
excess CO2?
8. How Gypsum is converted into Plaster of Paris?
9. Write any four uses of borax?
10.
CO2 is a gas while SiO2 is solid at room temperature. Justify?
11.
What is meant by chemical garden?
12.
Why silicones are more proffered
over petroleum.
13.
P203 is a powerful
dehydrating agent. Give two examples.
14.
Why SO3 is dissolved in H2SO4 and
not in water. Write any four important uses of H2SO4?
15.
Write any four important uses of H2SO4 ?
16.
HF is weak acid while HCl is strong acid. Give reason.
17.
What are freons and Teflons?
18.
How xenon tetraoxide is prepared.
19.
How does process of galvanizing
protect iron from rusting?
20.
Give any two uses of KMnO4?
21.
Typical and nontypical transition elements.
22.
How chromates are converted into
dichromats.
23.
Differentiate between homocycle & heterocyclic compounds?
24.
What is the functional group?
Give examples
25.
Metamerism, Tautomerism and
functional group isomerism.
26.
Explain Markownikov's role with
one example?
27.
How ethyne is converted to a)
Acetaldehyde b) Benzene?
28.
Differentiate between mono and
polycydic aromatic compound.
29.
Prepare benzene by 2 methods
especially from alkanes.
30.
Give general mechanism patterns
of s 2 reaction?
31.
Reactivity of alkyl halides. Questions
8,12 from exercise.
32.
Explain Markownikov's role with
one example?
33.
How ethyne is converted to a)
Acetaldehyde b) Benzene?
34.
Explain denaturing of alcohol?
35.
How will you distinguish between
methanol & ethanol?
36.
Prepare phenol from chlorobenzene
by Dow's method?
37.
Why phenol is acidic while
alcohol is not?
38.
Write down four uses of
acetaldehyde?
39.
Write four uses of formaldehyde?
40.
Prepare lactic acid from
ethanols.
41.
Define and differentiate between
essential and
non-essential
amino acids.
42.
What is Zwitter ion?
Differentiate between aromatic carboxylic acid and fatty acids.
43.
Differentiate between polypeptide
and proteins.
44.
Esta formation, acid halide, and
amide formations
45.
Give two difference between oils and fats?
46.
Define saponification number and
iodine number?
47.
Write down important uses of
Lipids?
48.
Difference between addition and
condensation polymerizations
49.
Differentiate between DNA and RNA
50.
Give two difference between oils and fats?
51.
What are phosphatic fertilizers?
52.
Give two formulas of phosphatic
fertilizers.
53.
Define paper, give important raw
material for the manufacture of paper?
54.
Define environmental chemistry
and what are the components of Environment?
55.
Discuss photochemical smog and
give its properties?
56.
Why Ozone layer depleting?
57.
What is biochemical oxygen
demand?
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