List of practice Questions

Gynaecomastia is the symptom of .............

A bar magnet is equivalent to ............

A body of mass $m$ rests on horizontal surface, the coefficient of friction between the body and the surface is $\mu$. if the mass is pulled by a force $P$ as shown in the figure, the limiting friction between body and surface will be:

Blowing air with open mouth is an example of ...........

In a mixture of acetic acid and sodium acetate the ratio of concentrations of the salt to the acid is increased ten times. Then the pH of the solution :

In a galvanic cell, the electrons flow from :

A nitrogen containing organic compound gave an oily liquid on heating with bromine and potassium hydroxide solution. On shaking the product with acetic anhydride, an antipyretic drug was obtained. The reactions indicate that the starting compound is :

Benzoin is :

Oxygen is $16$ times heavier than hydrogen. Equal volumes of hydrogen and oxygen are mixed. The ratio of speed of sound in the mixture to that in hydrogen is _____

Sound waves in air are always longitudinal because,

A bullet moving with a speed of $100\, ms ^{-1}$ can just penetrate two planks of equal thickness. Then, the number of such planks penetrated by the same bullet when the speed is doubled will be ...........

Effective capacitance between A and B in the figure shown is (all capacitances are in $\mu\, F$ )

$CN^-$ is strong field ligand. This is due to the fact that

Which of the following coordination compounds would exhibit optical isomerism

In an octahedral structure, the pair of d orbitals involved involved in d2 sp3 hybridization is

CN– is a strong field ligand. This is due to the fact that

The equation of the director circle of the hyperbola $\frac {x^{2}} {16}-\frac{y^{2}} {4}=1$ is given by .............

The example of trimerous, unisexual flowers is

The value of $k$ so that $x^{2} + y^{2} + kx + 4y + 2 = 0 $ and $2(x^{2}+y^{2})- 4x - 3y + k = 0$ cut orthogonally is

In the diagram of section of Graafian follicle, different parts are indicated by alphabets; choose the answer in which these alphabets have been correctly matched with the parts they indicate.

Coarcervates were experimentally produced by

The lacteals are found in ..........

Which of the following is a mechanical barrier used in birth control ?

The term ecology was coined by $\ldots\ldots\ldots$

Node of Ranvier is found in