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In thermodynamic processes which of the following statements is not true?

Option: 1

In an isochoric process pressure remains constant


Option: 2

In an isothermal process the temperature remains constant


Option: 3

In an adiabatic process {\rm{PV}}^\gamma = constant


Option: 4

In an adiabatic process the system is insulated from the surroundings


Specilised epidermal cells surrounding the guard cells are called:

Option: 1

Complementary cells


Option: 2

Subsidiary cells


Option: 3

Bulliform cells


Option: 4

Lenticels


In which of the following, all three are macronutrients?

Option: 1

Boron, zinc, manganese


Option: 2

Iron, copper, molybdenum


Option: 3

Molybdenum, magnesium, manganese


Option: 4

Nitrogen, nickel, phosphorus


The magnifying power of a telescope is 9. When it is adjusted for parallel rays the distance between the objective and eyepiece is 20 cm. The focal length of lenses are:

Option: 1

10 cm, 10 cm


Option: 2

15 cm, 5 cm


Option: 3

18 cm, 2 cm


Option: 4

11 cm, 9 cm


In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths \lambda1 = 12000 {\AA} and \lambda2 = 10000 \AA. At what minimum distance from the common central bright fringe on the screen 2 m from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

Option: 1

3 mm


Option: 2

8 mm


Option: 3

6 mm


Option: 4

4 mm


Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to which of the following formulae?

Option: 1

Fe_{3}\left [ Fe\left ( CN \right )_{6} \right ]_{3}


Option: 2

Fe_{3}\left [ Fe\left ( CN \right )_{6} \right ]_{2}


Option: 3

Fe_{4}\left [ Fe\left ( CN \right )_{6} \right ]_{3}


Option: 4

Fe_{4}\left [ Fe\left ( CN \right )_{6} \right ]_{2}


Fruit colour in squash is an example of :

Option: 1

Recessive epistasis


Option: 2

Dominant epistasis


Option: 3

Complementary genes


Option: 4

Inhibitory genes


In vitro clonal propagation in plants is characterized by:

Option: 1

PCR and RAPD


Option: 2

Northern blotting


Option: 3

Electrophoresis and HPLC


Option: 4

Microscopy


Which of the following characteristics is mainly responsible for the diversification of insects on land ?

Option: 1

Exoskeleton


Option: 2

Eyes


Option: 3

Segmentation


Option: 4

Bilateral symmetry


The DNA molecule to which the gene of interest is integrated for cloning is called :

Option: 1

Vector


Option: 2

Template


Option: 3

Carrier


Option: 4

Transformer


Aqueous solution of which of the following compounds is the best conductor of electric current ?

Option: 1

Acetic acid, C2H4O2


Option: 2

Hydrochloric acid, HCl


Option: 3

Ammonia, NH3


Option: 4

Fructose, C6H12O6


The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is:

Option: 1

Glandular


Option: 2

Ciliated


Option: 3

Squamous


Option: 4

Cuboidal


Global agreement in specific control strategies to reduce the release of ozone depleting substances, was adopted by:

Option: 1

The Montreal Protocol


Option: 2

The Koyoto Protocol


Option: 3

The Vienna Convention


Option: 4

Rio de Janeiro Conference


Oxidation numbers of P in \text{PO}_{4}^{3-}, of S in \text{SO}_{4}^{2-} and that of Cr in \text{Cr}_2 \text{O}_7^{2 - } , are respectively:

Option: 1

+ 3, + 6 and + 5


Option: 2

+ 5, + 3 and + 6


Option: 3

- 3, + 6 and + 6


Option: 4

+ 5, + 6 and + 6


The IUPAC name of the compound having the formula CH\equiv C-CH= CH_{2}   is :

 

 

Option: 1

1-butyn -3-ene


Option: 2

but-1-yne-3-ene


Option: 3

1-butene-3-yne


Option: 4

3-butene-1-yne


In a buffer solution containing equal concentration of B^-\ and\ HB, the K_b for B^- is 10^{-10}. The pH of buffer solution is

Option: 1

4


Option: 2

10


Option: 3

7


Option: 4

6


Which one of the following species does not exist under normal conditions?

Option: 1

Li2


Option: 2

{\rm Be}_2^ +


Option: 3

Be2


Option: 4

B2


Oxidation states of P in H4P2O5, H4P2O6, H4P2O7, are respectively:

Option: 1

+ 3, + 4, + 5


Option: 2

+ 3, + 5, + 4


Option: 3

+ 5, + 3, + 4


Option: 4

+ 5, + 4, + 3


Listed below are four respiratory capacities (a - d) and four jumbled respiratory volumes of a normal human adult

Respiratory capacities                                                   Respiratory volumes

  1. Residual volume                                                        2500 mL
  2. Vital capacity                                                             3500 mL
  3. Inspiratory reserve volume                                        1200 mL
  4. Inspiratory capacity                                                    4500 mL

Which one of the following is the correct matching of two capacities and volumes?

Option: 1

(a) 4500 mL, (b) 3500 mL


Option: 2

(b) 2500 mL, (c) 4500 mL


Option: 3

(c) 1200 mL, (d) 2500 mL


Option: 4

(d) 3500 mL, (a) 1200 mL


Which one of the following has its own DNA?

Option: 1

Mitochondria


Option: 2

Dictyosome


Option: 3

Lysosome


Option: 4

Peroxisome


Which one of the following techniques made it possible to genetically engineer living organisms?

Option: 1

Heavier isotope labelling


Option: 2

Hybridization


Option: 3

Recombinant DNA techniques


Option: 4

X-ray diffraction


Ureters act as urinogenital ducts in

Option: 1

Frog's both males and females


Option: 2

Frog's males


Option: 3

Human males


Option: 4

Human females


Guttation is the result of

Option: 1

Osmosis


Option: 2

Root pressure


Option: 3

Diffusion


Option: 4

Transpiration


A conveyor belt is moving at a constant speed of 2 m/s. A box is gently dropped on it. The coefficient of friction between them is \mu=0.5. The distance that the box will move relative to belt before coming to rest on it, taking g = 10 ms-2, is

Option: 1

Zero


Option: 2

0.4 m


Option: 3

1.2 m


Option: 4

0.6 m


Out of the following functions representing motion of a particle which represents SHM:

(A)    Y = sin \omegat - cos\omegat

(B)    Y = sin3\omegat

(C)    \text{Y}=5\cos\left ( \frac{3\pi}{4}-3\omega\text{t} \right )

(D)    Y = 1+\omegat+\omega2t2

Option: 1

Only (A) and (B)


Option: 2

Only (A)


Option: 3

Only (D) does not represent SHM


Option: 4

Only (A) and (C)


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