List of practice Questions

Match List - I with List II

List I	List II
A. The Evil Quartet	III. Causes of biodiversity losses
B. Ex situ conservation	I. Cryopreservation
C. Lantana camara	II. Alien species invasion
D. Dodo	IV. Extinction

Match List-I with List-II \[ \begin{array}{|l|l|} \hline \textbf{Solutions} & \textbf{Explanation} \\ \hline (A) \; \text{Saturated solution} & (I) \; \text{Solution having two components.} \\ \hline (B) \; \text{Isotonic solutions} & (II) \; \text{A solution whose osmotic pressure is more than that of another.} \\ \hline (C) \; \text{Binary solution} & (III) \; \text{A solution which contains the maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature.} \\ \hline (D) \; \text{Hypertonic solution} & (IV) \; \text{The solutions having the same osmotic pressure at a given temperature.} \\ \hline \end{array} \]

A convex lens has a focal length of 10 cm. What is the magnification produced when the object is placed 30 cm from the lens?

With the help of the given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in the F3 generation.

Which of the following enzyme(s) are NOT essential for gene cloning?
A. Restriction enzymes
B. DNA ligase
C. DNA mutase
D. DNA recombinase
E. DNA polymerase

The distance between points A (-5, 7) and B (-1, 3) is:

If $\omega \neq 1$ is a cube root of unity, then one root among the $7^{th}$ roots of $(1+\omega)$ is

Which among the following was not a challenge to nationhood in the immediate post-Independence India?

The speed of a projectile is half of its initial speed at maximum height. Then, the angle of projection will be

Select the correct statements for [Fe(CN)\(_6\)]\(^{3-}\) complex:
(A) Paramagnetic
(B) sp\(^3\)d\(^2\) hybridization
(C) Magnetic moment = 5.92 BM
(D) d\(^2\)sp\(^3\) hybridization

If \( p_1, p_2, p_3 \) are the altitudes and \( a=4, b=5, c=6 \) are the sides of a triangle ABC, then \( \frac{1}{p_1^2} + \frac{1}{p_2^2} + \frac{1}{p_3^2} = \)

If \(\alpha, \beta, \gamma, \delta, \epsilon\) are the roots of the equation \(x^5 + x^4 - 13x^3 - 13x^2 + 36x + 36 = 0\) and \(\alpha<\beta<\gamma<\delta<\epsilon\) then \( \frac{\epsilon}{\alpha} + \frac{\delta}{\beta} + \frac{1}{\gamma} = \)

A long wire with a small current element of length 1 cm is placed at the origin and carries a current of 10 A along the x-axis. The magnitude of the magnetic field, due to the element, on the y-axis at a distance 0.5 m from it, would be

If A = $\begin{bmatrix} 0 & 0 & \sqrt{3} \\ 0 & \sqrt{3} & 0 \\ \sqrt{3} & 0 & 0 \end{bmatrix}$, then |adj A| is equal to

The total cost C(x) in Rupees associated with the production of x units of an item is given by C(x) = \(0.007x^3 - 0.003x^2 + 15x + 400\). The marginal cost when 10 items are produced is:

The rate of change of area of a circle with respect to its circumference when radius is 4cm, is

A particle is moving with a constant velocity of 5 m/s in a circular path of radius 2 m. What is the centripetal acceleration of the particle?

The expression for K is given as a sum of terms up to infinity. Find the value of K.

Find the term which doesn't fit into the series given below:
H4Q, K10N, N20K, Q43H, T90E

The function f(x) = tanx - x