List of practice Questions

Orbital velocity of earth satellite does not depend on
On heating potassium permanganate, one of the following compound is not obtained :
Omnis cellula e cellula was stated by
$ { MSO_4 ->[NH_4OH] $\underset{\text{white}}{ {X}}$\downarrow ->[NH_4OH][exess] Y ->[H_2S] Z \downarrow}$ Here $M$ and $Z$ are
Most plants obtain their nitrogen from the soil in the form of
MOET is a programme that is used to increase
Molecular structure of $ XeO_3 $ and $ XeOF_4 $ respectively are
Mitral valve is present between
Mica is chemically
Mendel selected Pisum sativum for his experimental investigations among various plants available in the Monastery garden. Which of the following can be a reason for this?
Mature RBCs lose their ability for
Match the flame colours of the alkaline earth metal salts in the Bunsen burner.
Malpighian tubules serve as excretory organs in which of the following phyla?
Let P and Q be distinct points on the parabola $y^2 = 2x$ such that a circle with PQ as diameter passes through the vertex O of the parabola. If P lies in the first quadrant and the area of the triangle $?OPQ$ is $3\sqrt{2},$ then which of the following is (are) the coordinates of P ?
What is the role of bithional in toilet soaps?
Cestoda are distinguished from other flatworms by the absence of
$\Delta G^{\circ}$ versus $T$ plot in the Ellingham's diagram slopes downward for the reaction
Among the metals $Fe , Zn , Pb , Ag$ and $Pt$, which do not give a metal nitrate on treatment with concentrated $HNO _{3}$ ?
Arrange the given set of compounds in order of increasing boiling points. I. $1$-chloropropane II. Iso-propyl chloride III. $1$-chlorobutane
The shapes of $ SF_{4} $ and $ XeF_{2} $ respectively are
The order of reactivity of halides towards $S_N1$ mechanism is
A physical quantity X is represented by $ X=[{{M}^{\eta }}{{L}^{-\theta }}{{T}^{-\text{o }\!\!|\!\!\text{ }}}]. $ The maximum percentage errors in the measurement of M, L and T, respectively are $ \alpha %,\beta % $ and $ \gamma %. $ The maximum percentage error in the measurement of X will be
An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy $ \frac{{{E}_{0}}}{4}. $ Its potential energy is
A small rise in the body temperature of humans is corrected by (i) sweating (ii) dilating the skin arteries (iii) constricting the skin arteries (iv) increased tension of muscles in the skin.
Two identical glass rods $S_1$ and $S_2$ (refractive index = 1.5) have one convex end of radius of curvature 10 cm. They are placed with the curved surfaces at a distance d as shown in the figure, with their axes (shown by the dashed line) aligned. When a point source of light P is placed inside rod $S_1$ on its axis at a distance of 50 cm from the curved face, the light rays emanating from it are found to be parallel to the axis inside $S_2$. The distance d is