List of practice Questions

Melvin Calvin was professor of

Meiosis II is characterised by

Measuring Biochemical Oxygen Demand (BOD) is a method used for

Mature embryosac in majority of angiosperms is

Male cockroach differs from female cockroach in having

Magnetic moment of $Cr^{2+}$ is nearest to

Lithium forms body centred cubic structure. The length of the side of its unit cell is $351\, pm$. Atomic radius of the lithium will be :

Let $p, q, r \,\in\, R$ and $r > p > 0$. If the quadratic equation $px^2 + qx + r = 0$ has two complex roots $\alpha$ and $\beta$, then $\left|\alpha\right|+\left|\beta\right|$ is

Krebs cycle takes place in

Iron exhibits +2 and + 3 oxidation states. Which of the following statements about iron is incorrect ?

Iodoform can be prepared from all except :

Incubation period of Plasmodium vivax is

Increasing the temperature of, an aqueous solution will cause

In which of the following plants, leaf apex changes into tendril?

In the electrolysis of alumina to obtain aluminium metal, cryolite is added mainly to

In Bohr?? orbit, $\frac{nh}{2\pi}$ indicates

In an $LCR$ circuit shown in the following figure, what will be the readings of the voltmeter across the resistor and ammeter if an $a.c.$ source of $220V$ and $100\, Hz$ is connected to it as shown?

In a Young?? double slit experiment with light of wavelength $\lambda$, fringe pattern on the screen has fringe width $\beta$. When two thin transparent glass (refractive index $\mu$) plates of thickness $t_1$ and $t_2$ $(t_1 > t_2)$ are placed in the path of the two beams respectively, the fringe pattern will shift by a distance

In aerobic respiration, total number of ATP molecules formed from 1 glucose molecule is

In a convex lens of focal length $F$, the minimum distance between an object and its real image must be

If $[x]$ is the greatest integer $ \le x,$ then the value of the integral $\int\limits^{0.9}_{-0.9}\left(\left[x^{2}\right]+\left(\frac{2-x}{2+x}\right)\right)dx$ is

If the line $y = mx + 1$ meets the circle $x^2 + y^2 + 3x = 0 $ in two points equidistant from and on opposite sides of $x$-axis, then

If the integral $\int \frac{5\,tan\, x }{tan \,x - 2} dx = x + a \ell n |sin x - 2 cos x| + k$, then $a$ is equal to :

If $Si$ is doped with $B$,

If radius of the $1^{st}$ orbit of $H$-atom is $0.0529 \,nm$ then the radius of its $3^{rd}$ orbit is