Choose the correct option from the choices given under the question.
1. Which of the following reactions can be employed for getting unsymmetrical alkalies in good
yield?
1. Wurtz reaction 2. Corey-House reaction
3. Both 4. None.
RIGHT ANSWER: 2
2. Which of the following salts is hexahydrate?
1. Blue vitriol 2. Green vitriol
3. White vitriol 4. Mohrs salt.
RIGHT ANSWER: 4
3. Which of the following substance does not give dinitrogen gas with
nitrous acid ?
1. Acetamide 2. Methyl amine
3. Diethyl amine 4. Isoprpyl amine.
RIGHT ANSWER: 3
4. Which of the following sulphides is yellow in colour?
1. ZnS 2. NiS
3. CdS 4. MgS.
RIGHT ANSWER: 3
5. Which of the following unit cells has the least symmetry?
1. Tetragonal 2. Triclinic
3. Monoclinic 4. Cubic.
RIGHT ANSWER: 2
6. Which of the following will show disproportionate when treated with 50% aqueous NaOH?
1. Benzyl alcohol 2. Ethanal
3. Phenyl ethanal 4. m-nitro benzaldehyde.
RIGHT ANSWER: 4
7. Which one of the following does not show different oxidation states?
1. Iron 2. Copper
3. Zinc 4. Manganese.
RIGHT ANSWER: 3
8. Which one of the following pairs are chemically dissimilar?
1. Na and K 2. Ba and Sr
3. Zr and Hf 4. Ca and Zn.
RIGHT ANSWER: 4
9. What is the force that pulls the freely falling body towards the earth is called____
1. Frictional Force 2. Gravitational Force
3. Magnetic Force 4. Traditional Force
RIGHT ANSWER: 2
10. The units in terms of which the units of all other physical quantities can be derived are called _____ units
1. physical 2. derived
3. basic 4. underived
RIGHT ANSWER: 3
11. In MKS system the units of length are
1. centimetres 2. milli metres
3. metres 4. nm
RIGHT ANSWER: 3
12. In FPS system the units of mass
1. kilograms 2. tons
3. quintals 4. pounds
RIGHT ANSWER: 4
13. The distance of seperation between two points in space is defined as _____
1. length 2. area
3. volume 4. none
RIGHT ANSWER: 1
14. In a gas a burning splinter is put out with a pop sound. The gas is :
1. Hydrogen 2. Oxygen
3. Carbon dioxide 4. Nitrogen
RIGHT ANSWER: 1
15. The width of a river can be found by :
1. Measuring tape 2. Survey chain
3. Method of triangulation 4. Scale
RIGHT ANSWER: 3
16. Existence of harmful substances in atmosphere causes_______
1. Pleasant smell 2. Pleasant atmosphere
3. Pollution 4. None
RIGHT ANSWER: 3
17. Which of the following is not a fuel?
1. Charcoal 2. Kerosene
3. Mercury 4. petrol
RIGHT ANSWER: 3
18. The scale marked on the nut is
1. Pitch Scale 2. Head Scale
3. Vernier Scale 4. Main Scale
RIGHT ANSWER: 2
19. If the zeroth division of the head scale is above the index line
of the pitch scale then the correction is
1. Positive 2. Negative
3. No correction 4. None
RIGHT ANSWER: 1
20. Generally L.C. of a screw gauge is _____
1. 0.1mm 2. 0.01mm
3. 0.001mm 4. 0.01cm
RIGHT ANSWER: 2
21. Conversion of glucose to pyruvic acid yields a net gain of :
1. 2 molecules of ATP 2. 36 molecules of ATP
3. 4 molecules of ATP 4. 38 molecules of ATP
RIGHT ANSWER: 1
22. Blood of one person is transfused into another through his :
1. muscle 2. trachea
3. vein 4. artery
RIGHT ANSWER: 3
23. Endocrine glands are present in
1. amoeba 2. earth worm
3. euglena 4. man
RIGHT ANSWER: 4
24. Which pair of species exist as monoatomic molecules?
1. Helium and argon 2. Argon and chlorine
3. Hydrogen and helium 4. Ozone and nitrogen.
RIGHT ANSWER: 1
25. Which transition metal has the lowest density?
1. Os 2. Zn
3. Sc 4. La.
1. Which of the following reactions can be employed for getting unsymmetrical alkalies in good
yield?
1. Wurtz reaction 2. Corey-House reaction
3. Both 4. None.
RIGHT ANSWER: 2
2. Which of the following salts is hexahydrate?
1. Blue vitriol 2. Green vitriol
3. White vitriol 4. Mohrs salt.
RIGHT ANSWER: 4
3. Which of the following substance does not give dinitrogen gas with
nitrous acid ?
1. Acetamide 2. Methyl amine
3. Diethyl amine 4. Isoprpyl amine.
RIGHT ANSWER: 3
4. Which of the following sulphides is yellow in colour?
1. ZnS 2. NiS
3. CdS 4. MgS.
RIGHT ANSWER: 3
5. Which of the following unit cells has the least symmetry?
1. Tetragonal 2. Triclinic
3. Monoclinic 4. Cubic.
RIGHT ANSWER: 2
6. Which of the following will show disproportionate when treated with 50% aqueous NaOH?
1. Benzyl alcohol 2. Ethanal
3. Phenyl ethanal 4. m-nitro benzaldehyde.
RIGHT ANSWER: 4
7. Which one of the following does not show different oxidation states?
1. Iron 2. Copper
3. Zinc 4. Manganese.
RIGHT ANSWER: 3
8. Which one of the following pairs are chemically dissimilar?
1. Na and K 2. Ba and Sr
3. Zr and Hf 4. Ca and Zn.
RIGHT ANSWER: 4
9. What is the force that pulls the freely falling body towards the earth is called____
1. Frictional Force 2. Gravitational Force
3. Magnetic Force 4. Traditional Force
RIGHT ANSWER: 2
10. The units in terms of which the units of all other physical quantities can be derived are called _____ units
1. physical 2. derived
3. basic 4. underived
RIGHT ANSWER: 3
11. In MKS system the units of length are
1. centimetres 2. milli metres
3. metres 4. nm
RIGHT ANSWER: 3
12. In FPS system the units of mass
1. kilograms 2. tons
3. quintals 4. pounds
RIGHT ANSWER: 4
13. The distance of seperation between two points in space is defined as _____
1. length 2. area
3. volume 4. none
RIGHT ANSWER: 1
14. In a gas a burning splinter is put out with a pop sound. The gas is :
1. Hydrogen 2. Oxygen
3. Carbon dioxide 4. Nitrogen
RIGHT ANSWER: 1
15. The width of a river can be found by :
1. Measuring tape 2. Survey chain
3. Method of triangulation 4. Scale
RIGHT ANSWER: 3
16. Existence of harmful substances in atmosphere causes_______
1. Pleasant smell 2. Pleasant atmosphere
3. Pollution 4. None
RIGHT ANSWER: 3
17. Which of the following is not a fuel?
1. Charcoal 2. Kerosene
3. Mercury 4. petrol
RIGHT ANSWER: 3
18. The scale marked on the nut is
1. Pitch Scale 2. Head Scale
3. Vernier Scale 4. Main Scale
RIGHT ANSWER: 2
19. If the zeroth division of the head scale is above the index line
of the pitch scale then the correction is
1. Positive 2. Negative
3. No correction 4. None
RIGHT ANSWER: 1
20. Generally L.C. of a screw gauge is _____
1. 0.1mm 2. 0.01mm
3. 0.001mm 4. 0.01cm
RIGHT ANSWER: 2
21. Conversion of glucose to pyruvic acid yields a net gain of :
1. 2 molecules of ATP 2. 36 molecules of ATP
3. 4 molecules of ATP 4. 38 molecules of ATP
RIGHT ANSWER: 1
22. Blood of one person is transfused into another through his :
1. muscle 2. trachea
3. vein 4. artery
RIGHT ANSWER: 3
23. Endocrine glands are present in
1. amoeba 2. earth worm
3. euglena 4. man
RIGHT ANSWER: 4
24. Which pair of species exist as monoatomic molecules?
1. Helium and argon 2. Argon and chlorine
3. Hydrogen and helium 4. Ozone and nitrogen.
RIGHT ANSWER: 1
25. Which transition metal has the lowest density?
1. Os 2. Zn
3. Sc 4. La.
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