PHYSICS
1. One mole of an ideal monatomic gas undergoes a process described by the equation
\(PV^3=\text{constant}.\) The heat capacity of the gas during this process is:
| 1. |
\(\dfrac{3}{2}R\) |
2. |
\(\dfrac{5}{2}R\) |
| 3. |
\(2R\) |
4. |
\(R\)
|
2. One mole of an ideal gas goes from an initial state \(A\) to the final state \(B\) with two processes. It first undergoes isothermal expansion from volume \(V\) to \(3V\) and then its volume is reduced from \(3V\) to \(V\) at constant pressure. The correct \((P-V)\) diagram representing the two processes is:
3. For the given cycle, the work done during the isobaric process is:
| 1. |
\(200\) J |
2. |
zero |
| 3. |
\(400\) J |
4. |
\(600\) J |
4. Thermodynamic processes are indicated in the following diagram:
Match the following:
| Column-I |
Column-II |
| \(\mathrm{(P)}\) |
Process I |
\(\mathrm{(a)}\) |
Adiabatic |
| \(\mathrm{(Q)}\) |
Process II |
\(\mathrm{(b)}\) |
Isobaric |
| \(\mathrm{(R)}\) |
Process III |
\(\mathrm{(c)}\) |
Isochoric |
| \(\mathrm{(S)}\) |
Process IV |
\(\mathrm{(d)}\) |
Isothermal |
| 1. |
\(\mathrm{P → c, Q → a, R → d, S→ b}\) |
| 2. |
\(\mathrm{P→ c, Q → d, R → b, S → a}\) |
| 3. |
\(\mathrm{P → d, Q → b, R → b, S → c}\) |
| 4. |
\(\mathrm{P → a, Q → c, R → d, S → b}\) |
5. A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then,
| 1. |
compressing the gas through an adiabatic process will require more work to be done. |
| 2. |
compressing the gas isothermally or adiabatically will require the same amount of work. |
| 3. |
which of the case (whether compression through isothermal or through the adiabatic process) requires more work will depend upon the atomicity of the gas. |
| 4. |
compressing the gas isothermally will require more work to be done. |
6. The efficiency of an ideal heat engine (Carnot heat engine) working between the freezing point and boiling point of water is:
| 1. |
\(26.8\%\) |
2. |
\(20\%\) |
| 3. |
\(6.25\%\) |
4. |
\(12.5\%\) |
7. An ideal gas goes from state \(A\) to state \(B\) via three different processes as indicated in the \((P\text-V)\) diagram.
If \(Q_1,Q_2,Q_3\) indicate the heat absorbed by the gas along the three processes and \(\Delta U_1, \Delta U_2, \Delta U_3\) indicate the change in internal energy along the three processes respectively, then:
| 1. |
\(Q_3>Q_2>Q_1\) and \(\Delta U_1= \Delta U_2= \Delta U_3\) |
| 2. |
\(Q_1=Q_2=Q_3\) and \(\Delta U_1> \Delta U_2> \Delta U_3\) |
| 3. |
\(Q_3>Q_2>Q_1\) and \(\Delta U_1> \Delta U_2> \Delta U_3\) |
| 4. |
\(Q_1>Q_2>Q_3\) and \(\Delta U_1= \Delta U_2= \Delta U_3\) |
8. Two gases
\(A\) and
\(B\) are filled at the same pressure in separate cylinders with movable pistons of radius
\(r_A\) and
\(r_B,\) respectively. On supplying an equal amount of heat to both the systems reversibly under constant pressure, the pistons of gas
\(A\) and
\(B\) are displaced by
\(16~ \text{cm}\) and
\(9~ \text{cm},\) respectively. If the change in their internal energy is the same, then the ratio
\(r_A / r_B\) is equal to:
| 1. |
\(\dfrac{2}{\sqrt{3}}\) |
2. |
\(\dfrac{\sqrt{3}}{2}\) |
| 3. |
\(\dfrac{4}{3}\) |
4. |
\(\dfrac{3}{4}\) |
9. A thermodynamic system undergoes a cyclic process \(ABCDA\) as shown in Fig. The work done by the system in the cycle is:
| 1. |
\( P_0 V_0 \) |
2. |
\( 2 P_0 V_0 \) |
| 3. |
\(\dfrac{P_0 V_0}{2} \) |
4. |
zero |
10. The equilibrium state of a thermodynamic system is described by:
| A. |
Pressure |
B. |
Total heat |
| C. |
Temperature |
D. |
Volume |
| E. |
Work done |
Choose the most appropriate answer from the options given below:
| 1. |
A, B and E only |
2. |
B, C and D only |
| 3. |
A, B and C only |
4. |
A, C and D only |
CHEMISTRY
11. At 25ºC, molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is
\(\mathrm{9.54 ~ohm^{–1}cm^2 mol^{–1}}\) and at infinite dilution, its molar conductance is
\(\mathrm{238 ~ohm^{–1} cm^2~ mol^{–1}.}\) The degree of ionization of ammonium hydroxide at the same concentration and temperature is:
1. 20.800%
2. 4.008%
3. 40.800%
4. 2.080%
12. The conductivity of centimolar solution of KCl at 25°C is 0.0210 ohm
–1 cm
–1 and the resistance of the cell containing the solution at 25°C is 60 ohm. The value of the cell constant is:
| 1. |
3.34 cm–1 |
2. |
1.34 cm–1 |
| 3. |
3.28 cm–1 |
4. |
1.26 cm–1 |
13. Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate for 100 seconds is(Given : Molar mass of Cu:
\(63 g mol^{-1}\) F = 96487 C)
| 1. |
0.315 g |
2. |
31.5 g |
| 3. |
0.0315 g |
4. |
3.15 g |
14. The weight of silver (at.wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O2 at STP will be:
1. 5.4 g
2. 10.8 g
3. 54.0 g
4. 108.0 g
15. Match the redox conversions in
List-I with the corresponding number of Faradays required in
List-II.
List-I
(Redox Conversion) |
List-II
(Number of Faraday required) |
| A. |
1 mol of H2O to O2 |
I. |
3F |
| B. |
1 mol of \(MnO^-_4\) to \(Mn^{2+}\) |
II. |
2F |
| C. |
1.5 mol of \(Ca\) from molten \(CaCl_2\) |
III. |
1F |
| D. |
1 mol of FeO to Fe2O3 |
IV. |
5F |
Choose the correct answer from the options given below:
| 1. |
A - III, B - IV, C - I, D - II |
2. |
A - II, B - III, C - I, D - IV |
| 3. |
A - III, B - IV, C - II, D - I |
4. |
A - II, B - IV, C - I, D - III |
16. Consider the given cell:
\(\mathrm{Z n \left|\right. Z n S O_{4} \left(\right. 0 . 01 M \left.\right) \left|\right. \left|\right. C u S O_{4} \left(\right. 1 . 0 M \left.\right) \left|\right. C u}\)
In the electrochemical cell, the emf of this Daniel cell is E1. When the concentration of ZnSO4 is changed to 1.0 M and that of CuSO4 is changed to 0.01 M, the emf changes to E2. From the following, which one is the relationship between E1 and E2 ?
(Given: \(\frac{RT}{F}\) = 0.059)
| 1. |
\(\mathrm{E_{1} < E_{2}}\) |
2. |
\(\mathrm{E_{1} > E_{2}}\) |
| 3. |
\(\mathrm{E_{2} = 0 \neq E_{1}}\) |
4. |
\(\mathrm{E_{1} = E_{2}}\) |
17. The pressure of H2 required to make the potential of H2 - electrode zero in pure water at 298 K is:
| 1. |
10–12 atm |
2. |
10–10 atm |
| 3. |
10–4 atm |
4. |
10–14 atm |
18. Consider the change in oxidation state of bromine corresponding to different emf values as shown in the diagram below:
The species undergoing disproportionation is:
| 1. |
\(\text{BrO}^-_3\) |
2. |
\(\text{BrO}^-_4\) |
| 3. |
\(\text{Br}_2\) |
4. |
\(\text{HBrO}\) |
19. On electrolysis of dilute sulphuric acid using Platinum (Pt) electrode, the product obtained at the anode will be:
1. Oxygen gas
2. gas
3. gas
4. Hydrogen gas
20. From the following select the one which is not an example of corrosion:
| 1. |
Rusting of an iron object |
| 2. |
Production of hydrogen by electrolysis of water |
| 3. |
Tarnishing of silver |
| 4. |
Development of green coating on copper and bronze ornaments |
21. Given below are two statements:
| Assertion (A): |
In the equation, \(\Delta_{\mathrm{r}} \mathrm{G}=-\mathrm{nFE} _{\text {cell }}, \) value of \(\mathrm{\Delta_rG }\) depends on n. |
| Reason (R): |
\(\mathrm{E_{cell} }\) is an intensive property and \(\mathrm{\Delta_rG }\) is an extensive property. |
| 1. |
(A) is False, but (R) is True. |
| 2. |
Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. |
Both (A) and (R) are True and (R) is not the correct explanation of (A). |
| 4. |
(A) is True, but (R) is False. |
22. The molar conductance of an electrolyte increases with dilution according to the equation:
\(\Lambda_{\mathrm{m}}=\Lambda_{\mathrm{m}}^{\circ}-\mathrm{A} \sqrt{\mathrm{c}} \)
Consider the following four statements:
| A: |
This equation applies to both strong and weak electrolytes. |
| B: |
The value of the constant A depends upon the nature of the solvent. |
| C: |
The value of constant A is the same for both \(BaCl_2\) and \(MgSO_4\) |
| D: |
The value of constant A is the same for both \(BaCl_2\) and \(Mg(OH)_2\) |
Which of the above statements are correct?
| 1. |
(A) and (B) only |
2. |
(A), (B), and (C) only |
| 3. |
(B) and (C) only |
4. |
(B) and (D) only |
23. Molar conductivities at infinite dilution of
NaCl, HCl, and are 126.4, 425.9, and 91.0 S cm2 mol–1 respectively.
for will be:
| 1. |
\(180.5~S~cm^2~mol^{-1}\) |
2. |
\(290.8~S~cm^2~mol^{-1}\) |
| 3. |
\(390.5~S~cm^2~mol^{-1}\) |
4. |
\(425.5~S~cm^2~mol^{-1}\) |
BIOLOGY
24. Which of the following can be expected if scientists succeed in introducing apomictic gene into hybrid varieties of crops?
| 1. |
Polyembryony will be seen and each seed will produce many plantlets. |
| 2. |
Seeds of hybrid plants will show longer dormancy. |
| 3. |
Farmers can keep on using the seeds produced by the hybrids to raise new crop year after year. |
| 4. |
There will be segregation of the desired characters only in the progeny. |
25. Ectopic pregnancies are referred to as?
| 1. |
Pregnancies with a genetic abnormality |
| 2. |
Implantation of an embryo at a site other than the uterus |
| 3. |
Implantation of the defective embryo in the uterus |
| 4. |
Pregnancies terminated due to the hormonal imbalance |
26. Match
List-I with
List-II with respective to methods of Contraception and their respective actions.
|
List-I |
|
List-II |
| (a) |
Diaphragms |
(i) |
Inhibit ovulation and Implantation |
| (b) |
Contraceptive Pills |
(ii) |
Increase phagocytosis of sperm within Uterus |
| (c) |
Intra Uterine Devices |
(iii) |
Absence of Menstrual cycle and ovulation following parturition |
| (d) |
Lactational Amenorrhea |
(iv) |
They cover the cervix blocking the entry of sperms |
Choose the correct answer from the options given below:
|
(a) |
(b) |
(c) |
(d) |
| 1. |
(iii) |
(ii) |
(i) |
(iv) |
| 2. |
(iv) |
(i) |
(iii) |
(ii) |
| 3. |
(iv) |
(i) |
(ii) |
(iii) |
| 4. |
(ii) |
(iv) |
(i) |
(iii) |
27. What is the fate of the male gametes discharged in the synergid?
| 1. |
One fuses with the egg and the other fuses with central cell nuclei |
| 2. |
One fuses with the egg and the other(s) degenerate(s) in the synergid |
| 3. |
All fuse with the egg |
| 4. |
One fuses with the egg and the other(s) fuse(s) with a synergid nucleus |
28. A dioecious flowering plant prevents both:
1. Autogamy and geitonogamy
2. Geitonogamy and xenogamy
3. Cleistogamy and xenogamy
4. Autogamy and xenogamy
29. Match
List-I with
List-II
|
List-I |
|
List-II |
| A. |
Vasectomy |
I. |
Oral method |
| B. |
Coitus interruptus |
II. |
Barrier method |
| C. |
Cervical caps |
III. |
Surgical method |
| D. |
Saheli |
IV. |
Natural method |
Choose the correct answer from the options given below:
| Options: |
A |
B |
C |
D |
| 1. |
IV |
II |
I |
III |
| 2. |
III |
I |
IV |
II |
| 3. |
III |
IV |
II |
I |
| 4. |
II |
III |
I |
IV |
30. Seed formation without fertilization in flowering plants involves the process of?
| 1. |
budding |
2. |
somatic hybridization |
| 3. |
apomixis |
4. |
sporulation |
31. The stage transferred into the uterus after induced fertilization of ova in the laboratory is:
1. embryo at 4 blastomere stage
2. embryo at 2 blastomere stage
3. Morula
4. Zygote
32. Which one of the following statements is wrong?
| 1. |
Vegetative cell is larger than generative cell |
| 2. |
Pollen grains in some plants remain viable for months |
| 3. |
Intine is made up of cellulose and pectin |
| 4. |
When pollen is shed at a two-celled stage, double fertilization does not take place |
33. Following is a list of STDs. Select the diseases which are not completely curable.
| A. |
Genital warts |
| B. |
Genital herpes |
| C. |
Syphilis |
| D. |
Hepatitis-B |
| E. |
Trichomoniasis |
Choose the correct answer from options given below:
| 1. |
A and D only |
2. |
B and D only |
| 3. |
A and C only |
4. |
D and E only |
34. Which of the following is not an Intra Uterine Device?
| 1. |
Progestogens |
2. |
Multiload 375 |
| 3. |
Lippes loop |
4. |
Progestasert |
35. In which one of the following, both autogamy and geitonogamy are prevented?
1. Wheat
2. Papaya
3. Castor
4. Maize
36. Which one of the following statements is not true?
| 1. |
Pollen grains are rich in nutrients and they are used in the
form of tablets and syrups |
| 2. |
Pollen grains of some plants cause severe allergies and
bronchial afflictions in some people |
| 3. |
The flowers pollinated by flies and beetles secrete foul odour
to attract them |
| 4. |
Honey is made by bees by digesting pollen collected from
flowers |
37. What will be the ploidy of endosperm of a seed produced after crossing tetraploid female plant with tetraploid male plant?
1. Pentaploid
2. Hexaploid
3. Diploid
4. Triploid
38. The function of copper ions in copper releasing IUDs is to
| 1. |
inhibit gametogenesis |
| 2. |
make uterus unsuitable for implantation |
| 3. |
inhibit ovulation |
| 4. |
suppress sperm motility and fertilizing capacity of sperms |
39. What is the figure given below showing in particular?
| 1. |
Ovarian cancer |
2. |
Uterine cancer |
| 3. |
Tubectomy |
4. |
Vasectomy |
40. In angiosperms, the correct sequence of events leading to the formation of female gametophyte in the ovule is:
| A. |
3 successive free nuclear divisions in functional megaspore. |
| B. |
Degeneration of 3 megaspores |
| C. |
Meiotic division in megaspore mother cell |
| D. |
Migration of 3 nuclei towards each pole. |
| E. |
Formation of a wall resulting in seven celled embryosac. |
Choose the correct answer from the options given below:
| 1. |
(A), (B), (C), (D), (E) |
2. |
(C), (E), (A), (D), (B) |
| 3. |
(B), (C), (A), (D), (E) |
4. |
(C), (B), (A), (D), (E) |
41. Which part of the fruit, labelled in the given figure makes it a false fruit?
| 1. |
D-Seed |
2. |
A-Mesocarp |
| 3. |
B-Endocarp |
4. |
C-Thalamus |
42. In Which of the following techniques, the embryos are transferred to assist those females who cannot conceive?
| 1. |
GIFT and ZIFT |
2. |
ICSI and ZIFT |
| 3. |
GIFT and ICSI |
4. |
ZIFT and IUT |
43. MTP (Medical Termination of Pregnancy) with oral pills is considered relatively safe up to:
| 1. |
7-9 weeks of pregnancy |
2. |
15-18 weeks of pregnancy |
| 3. |
20-24 weeks of pregnancy |
4. |
28-30 weeks of pregnancy |
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