List of practice Questions

The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at 25ºC. The equilibrium constant of the reaction would be

The rapid change of $pH$ near the stoichiometric point of an acid base titration is the basis of indicator detection. $pH$ of the solution is related to ratio of the concentrations of the conjugate acid ($HIn$) and base $ (In^-) $ forms of the indicator given by the expression

Largest gametophyte is found in________

Match the names of diseases listed under column I with the meaning given under column II; choose the answer which gives the correct combination of the alphabets of the two columns.

The Ostwald dilution law is expressed as:

Which of the following is considered to be an anticancer species?

In $BrF_3$ molecule, the lone pairs occupy equatorial positions to minimise

In a regular octahedral molecule, MX₆ the number of X–M–X bonds at 180º is

If $Sin^{-1} \frac {x}{5}+Cosec^{-1} \frac {5}{4}=\frac {\pi}{2}$ then $x=$

MP denotes the mass of a proton and Mn that of a neutron. A given nucleus, of binding energy B, contains Z protons and N neutrons. The mass M(N, Z) of the nucleus is given by (c is the velocity of light )

A vector $ Q\to $ which has a magnitude of 8 is added to the vector $ P\to $ , which lies along the X-axis. The resultant of these two vectors is a third vector $ R\to $ , which lies along the Y-axis and has a magnitude twice that of $ P\to $ .The magnitude of $ P\to $ is :

A normal woman, whose father was colour-blind is married to a normal man. The sons would be

A male human is heterozygous for autosomal genes A and B and is also hemizygous for hemophilic gene h. What proportion of his sperms will be abh

Extranuclear inheritance is the consequence of presence of genes in

The following ratio is generally constant for a species

Identify the gas which is readily adsorbed by activated charcoal

In the manufacture of ammonia by the Haber's process, ${N_{2(g)} +3H_{2(g)} <=> 2NH_{3(g)} + 92.3 kJ} $, which of the following conditions is unfavourable ?

SI unit of permittivity is ...........

Two equal forces ($P$ each) act at a point inclined to each other at an angle of $120^\circ$. The magnitude of their resultant is _____

An uncharged sphere of metal is placed inside a charged parallel plate capacitor. The lines of force will look like .........

The horizontal range of a projectile is $ 4\sqrt{3} $ times its maximum height. Its angle of projection will be

The bond order in NO is 2.5 while that in $NO^+$ is 3. Which of the following statements is true for these two species ?

Which one of the following pair's correctly matches a hormone with a disease resulting from its deficiency

The pair of compounds having metals in their highest oxidation state is