List of practice Questions

Which of the following gives iodoform on heating with a solution of $ {I_2}$ containing $ {Na_2CO_3}$ ?
In both DNA and RNA, heterocyclic base and phosphate ester linkages are at 
MAB stands for :
When water moves through a semipermeable membrane, which of the following is created ?
Which of the following alkane cannot be made in good yield by Wurtz reaction ?
Which one of the following is not a gaseous biogeochemical cycle in the ecosystem?
A $6\, V$ battery is connected to the terminals of a three metre long wire of uniform thickness and resistance of $ 100\,\Omega $ . The difference of potential between two points on the wire separated by a distance of $50 \,cm$ will be
A person covers the first half of the distance with 6 m/s and the rest half with 9 m/s and 15 m/s in two equal time intervals. Find the average speed of the journey.
A uniform disc of mass $M$ and radius $R$ is mounted on an axle supported in friction less bearings. A light cord is wrapped around the rim of the disc and a steady downward pull $T$ is exerted on the cord. The angular acceleration of the disc is:
Which of the following is an autoimmune disorder
Which of the following is an endangered species of India ?
Which of the following is an example of imbibition ?
Which of the following is cultivated through vegetative propagation?
Which of the following statements, about the advantage of roasting of sulphide ore before reduction is not true?
Which of the following statements about the electron is incorrect ?
Which of the following types of organisms occupies more than one trophic level in a pond ecosystem?
A ballet dancer, dancing on a smooth floor is spinning about a vertical axis with her arms folded with an angular velocity of $20 \,rad/s$. When she stretches her arms fully, the spinning speed decrease as $10\, rad/s$. If $I$ is the initial moment of inertia of the dancer, the new moment of inertia is
In history of biology, human genome project led to the development of :
Near a circular loop of conducting wire as shown in the figure an electron moves along a straight line. The direction of the induced current if any in the loop is
The degree of the differential equation satisfying the relation$\sqrt{1+x^2}+\sqrt{1+y^2}=\lambda(x\sqrt{1+y^2}-y\sqrt{1+x^2}) is$
The distance of the origin from the plane through the points $(1, 1, 0)$, $(1, 2, 1)$ and $(-2, 2, -1)$ is
Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or a dicot stem? Give reasons.
20 guests have to sit half on each side of a long table. Three particular guests desire to sit on a particular side, five others on the other side. In how many ways, the seating arrangement can be made?
How does Ausable manage to make Max believe that there is a balcony attached to his room? Look back at his detailed description of it. What makes it a convincing story?
A=\(\begin{bmatrix}   2 & -1 \\   1 & 1  \end{bmatrix}\)if sum of diagonal elements of A13 is 3n then n equal to: