Column I	Column II
a	Gregarious, polyphagous pest	i	Asterias
b	Adult with radial symmetry and larva with bilateral symmetry	ii	Scorpion
c	Book lungs	iii	Ctenoplana
d	Bioluminescence	iv	Locusta

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4. In which of the following techniques, the embryos are transferred to assist those females who cannot conceive ?

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5. The roots that originate from the base of the stem are:

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6. Which of the following is not an attribute of a population ?

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7. Select the correct match

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8. Identify the wrong statement with reference to the gene T that controls ABO blood groups.

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9. The infectious stage of Plasmodium that enters the human body i s

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10. The process of growth is maximum during :

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Questions

Physics Most Viewed Questions

1. A car starts from rest and accelerates at $5\, m / s ^{2}$ At $t=4\, s$, a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at $t =6\, s$ ? (Take $\left. g =10\, m / s ^{2}\right)$

3. The escape velocity from the Earth's surface is $v$. The escape velocity from the surface of another planet having a radius, four times that of Earth and same mass density is :

4. A dipole is placed in an electric field as shown. In which direction will it move ?

5. If $E$ and $G$ respectively denote energy and gravitational constant, then $\frac{ E }{ G }$ has the dimensions of:

6. A capacitor of capacitance $'C'$, is connected across an ac source of voltage $V$, given by $V = V _{0} \sin \omega t$ The displacement current between the plates of the capacitor, would then be given by:

7. The half-life of a radioactive nuclide is $100$ hours. The fraction of original activity that will remain after $150$ hours would be :

8. A person sitting in the ground floor of a building notices through the window, of height $1.5\, m$, a ball dropped from the roof of the building crosses the window in $0.1\, s$. What is the velocity of the ball when it is at the topmost point of the window ? $(g = 10 \,m/s^{2})$

9. For a plane electromagnetic wave propagating in $x$-direction, which one of the following combination gives the correct possible directions for electric field (E) and magnetic field (B) respectively?

10. Time intervals measured by a clock give the following readings : $1.25\, s, 1.24 \,s, 1.27 \,s, 1.21 \,s$ and $1.28\, s$ What is the percentage relative error of the observations ?

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Chemistry Most Viewed Questions

1. The density of 2 M aqueous solution of NaOH is 1.28 g/cm$^3$. The molality of the solution is [Given that molecular mass of NaOH = 40 g mol$^{-1}$]

2. An organic compound contains $78 \%$ (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [Atomic wt. of $C$ is $12, H$ is $1$]

3. If $8\,g$ of a non-electrolyte solute is dissolved in $114\, g$ of n-octane to reduce its vapour pressure to $80\%$, the molar mass (in $g \,mol^{-1})$ of the solute is [Given that molar mass of n-octane is $114 \,g\, mol^{-1}]$

4. In water saturated air the mole fraction of water vapour is $0.02$. If the total pressure of the saturated air is $1.2\, atm$, the partial pressure of dry air is :

5. The major product formed in the following reaction $CH _{3} CH ( Cl ) CH _{2}- CH _{2} OH \xrightarrow{ Aq . KOH }$ is

6. In hydrogen atom, the de Broglie wavelength of an electron in the second Bohr orbit is : [Given that Bohr radius, $a_0$ = $52.9\, pm$ ]

7. If for a certain reaction $\Delta_{r}H$ is $30\, kJ\, mol^{-1}$ at $450 \,K$, the value of $\Delta_{r}S$ (in $JK^{-1}\, mol^{-1})$ for which the same reaction will be spontaneous at the same temperature is

8. A first order reaction has a rate constant of $2.303\times 10^{-3}$ s$^{-1}$. The time required for 40g of this reactant to reduce to 10 g will be- [Given that $log_{10}$ 2 = 0.3010

9. The volume occupied by 1.8 g of water vapour at 374 °C and 1 bar pressure will be :- [Use R = 0.083 bar L $K^{-1}mol^{-1}$]

10. The rate of a chemical reaction doubles for every 10° rise in temperature. If the temperature increases by 60°, the rate of reaction increases

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Mathematics Most Viewed Questions

1. $\int\frac{1}{\sin x\, \cos x}$ dx is equal to

2. The value of $ \int{\frac{{{x}^{2}}+1}{{{x}^{4}}-{{x}^{2}}+1}}dx $ is

3. $\int \frac{x^{2}+1}{x^{4}+1}dx $

4. If a and b are vectors such that $|a+b|=|a-b|$ then the angle between a and b is

5. The value of $\int \frac{x^2+1}{x^2-1}dx$ is

6. The solution of $\frac{dy}{dx} = \frac{y}{x}+\tan \frac{y}{x}$ is

7. $\int \frac{Sec \, x}{Sec \,x + Tan \, x} dx = $

8. The solution of the differential equation $\frac{dy}{dx} = (x +y)^2$ is

9. The value of $\displaystyle\int_{-1}^2 \frac {|x|}{x}dx $ is

10. The Boolean Expression $(p \wedge \sim q) \vee q \vee (\sim p \wedge q)$ is equivalent to :

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Biology Most Viewed Questions

1. identify the substances having glycosidic bond and peptide bond, respectively in their structure

2. Choose the correct pair from the following

3. Match the following columns and select the correct option. Column I Column II a Gregarious, polyphagous pest i Asterias b Adult with radial symmetry and larva with bilateral symmetry ii Scorpion c Book lungs iii Ctenoplana d Bioluminescence iv Locusta

4. In which of the following techniques, the embryos are transferred to assist those females who cannot conceive ?

5. The roots that originate from the base of the stem are:

6. Which of the following is not an attribute of a population ?

7. Select the correct match

8. Identify the wrong statement with reference to the gene T that controls ABO blood groups.

9. The infectious stage of Plasmodium that enters the human body i s

10. The process of growth is maximum during :

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6. A capacitor of capacitance $'C'$, is connected across an ac source of voltage $V$, given by $V = V _{0} \sin \omega t$
The displacement current between the plates of the capacitor, would then be given by:

10. Time intervals measured by a clock give the following readings :
$1.25\, s, 1.24 \,s, 1.27 \,s, 1.21 \,s$ and $1.28\, s$
What is the percentage relative error of the observations ?

1. The density of 2 M aqueous solution of NaOH is 1.28 g/cm$^3$. The molality of the solution is
[Given that molecular mass of NaOH = 40 g mol$^{-1}$]

5. The major product formed in the following reaction
$CH _{3} CH ( Cl ) CH _{2}- CH _{2} OH \xrightarrow{ Aq . KOH }$ is

6. In hydrogen atom, the de Broglie wavelength of an electron in the second Bohr orbit is :
[Given that Bohr radius, $a_0$ = $52.9\, pm$ ]

8. A first order reaction has a rate constant of $2.303\times 10^{-3}$ s$^{-1}$. The time required for 40g of this reactant to reduce to 10 g will be-
[Given that $log_{10}$ 2 = 0.3010

9. The volume occupied by 1.8 g of water vapour at 374 °C and 1 bar pressure will be :-
[Use R = 0.083 bar L $K^{-1}mol^{-1}$]

3. Match the following columns and select the correct option.

Column I Column II

a Gregarious, polyphagous pest i Asterias

b Adult with radial symmetry and larva with bilateral symmetry ii Scorpion

c Book lungs iii Ctenoplana

d Bioluminescence iv Locusta