ISEET Model Questions

1. Hydro Carbon(s) that can damage DNA to cause cancer is/ are
1) 1, 2-Benzanthracene 2) 1, 2-Benzpyrene 3) 1, 2, 5, 6 – di Benzanthracene 4) All of these

2. Compound containing N gives prussian blue precipitate in Lassaigne’s test. Effective atomic number of the central atom in this
precipitate is
1) 36 2) 35 3) 34 4) 33

3. The stability of tertiary butyl carbonium ion can be explained by
1) Inductive effect 2) Hyper conjugation 3) Mesomeric effect 4) Both 1 and 2

4. Reimer- Tiemann reaction is an example of
1) Nucleophilic substitution 2) α-elimination
3) Nucleophilic addition 4) Rearrangement reaction

5. Total number of π electrons in volved in Diels Alder reaction during the formation of cyclo alkanes
1) 4 2) 8 3) 10 4) 6

6. According to IUPAC and Cahn-Ingold – Prelog system, absolute configuration at stereogenic centres present in D(+) glucose
is
1) 2R, 3R, 4S, 5R 2) 2R, 3S, 4R, 5R 3) 2R, 3R, 4R, 5S 4) 2S, 3R, 4S, 5S

7. The law of mass action was stated by
1) Lechatlier and Arrheneus 2) Boltzmann and Maxwell
3) Guldberg & Waage and 4) Van’t Hoff and Ostwald

8. A system is given off 90 Joules of heat and the work done by the system is 10J. The change in internal energy of the system in Joules is
1) –80 2) –100 3) +80 4) +100

9. 100 ml of HCl of pH = 1 is mixed with 100 ml of distilled water. The pH of the resultant solution is
1) 0 2) 1 3) 1.3 4) 2

10. Saturated solution of a salt contains
1) one dynamic equilibrium 2) two dynamic equilibria
3) many dynamic equilibria 4) no dynamic equilibrium

11. Steam distillation is based on
1) Avogadro’s law 2) Charle’s law 3) Boyle’s law 4) Dalton’s law of partial pressures

12. 9. Right statement (s) among the following is / are
a) Formation of oxides of N is an example of Law of multiple proportions
b) Now a days the amu has been replaced by unified mass.
c) The usage of the term equivalent weight is a misnomer
d) The oxidation number of any atom in uncombined state is not zero

13. Permutit is an example of
1) Chain Silicate 2) Sheet Silicate 3) Pyro Silicate 4) Ortho Silicate

Here are some model questions from Chemistry in Everyday Life and Polymers topics. These model questions are useful for the candidates appearing for EAMCET, NEET – UG and ISEET Examinations.

1. The function of the Chemical having structure
1) Stimulates the secretion of pepsin and HCl in stomach
2) Prevents hyper acidity
3) Controls muscles in Bronchi
4) Cures cold and allergy

2. Most widely used artificial sweetener in soft drinks is –
1) Saccharin 2) Sucrolose 3) Aspartame 4) All the above

3. A mixture of Chloroxylenol and a-terpineol is used as
1) Antibiotic 2) Antiseptic 3) Antacid 4) analgesic

4. A drug that is analgesic as well as anti pyretic is
1) Aspirin 2) Analgin 3) Both Aspirin and Analgin 4) Paracetamol

5. Condensation product of Melonic acid & urea exhibits
1) Keto-enol tautomerism 2) Optical isomerism 3) functional isomerism 4) Geometrical isomerism

6. Which of the following is used as a ‘morning after pill’?
1) Norethindrone 2) Mifepristone 3) Novestrol 4) Bithionol

7. 1% Phenol solution is-
1) antiseptic 2) antimicrobial 3) disinfectant 4) antibiotic

POLYMERS

8. Uncommon monomers in Buna-S & Buna-N rubber are respectively –
1) isoprene and Buta diene
2) Neoprene and Styrene
3) Butadiene and ethene
4) Styrene and Acrylo Nitrile

9. Polymer(s) can be prepared from CH2O is/are-
1) Bakelite 2) Urea formaldehyde 3) both 1 and 2 4) glyptal

10. Which of the following statement is incorrect?
1) Quartz is an example of frame work Silicate
2) Quartz is amorphous allotrope of Silica.
3) Coloured Quartz is used as gems
4) Quartz may give hexagonal or trigonal crystals.

11. Beryl is
1) Di silicate 2) Chain silicate 3) Cyclic Silicate 4) Ortho Silicate

12. P – O – P bond is absent in
1) Pyro Phosphoric acid 2) Pyro Phosphorous acid 3) Hypo Phosphoric acid

13. Best method for the determination of molecular mass of polymer is
(1) ostwald’s dynamic method (2) cottrell’s method
(3) Rast’s method (4) Berkely – Hartley method

14. Van’t Hoff’s factor for 3 m aqueous solution of glucose is
(1) 18 (2) 1 (3) 6 (4) 0

15. Aqueous solution that exhibits the highest freezing point is
(1) 0.1M Al cl3 solution (2) 0.1M Mg cl2 solution
(3) 0.1M urea solution (4) 0.1M Kcl solution

16. Equimolar Solutions in the same solvent have
(1) same boiling and same freezing points
(2) different boiling and different freezing points
(3) same boiling point and different freezing points
(4) same freezing point and different boiling points

17. Dangerous process is/ are
(1) Haemolysis (2) plasmolysis (3) reverse osmosis (4) both 1 and 2

18. The density of a face – centred cubic element is (Atomic mass = 80 edge of the cell is 600 pm)
1) 1.23 2) 0.41 3) 2.47 4) 24.7