List of practice Questions

In which case the potential energy decrease on

In vulcanisation of rubber

In which allotropic form of sulphur, puckered $S_8$ rings are not present ?

In which branch study about remains of plant life?

In vacuum, speed of light depends upon

In van der Waal?? equation the critical pressure $P_c$ is given by

In ____ vascular bundle, a strip of vascular cambium is present in between the xylem and phloem.

In trapezoidal rule, the curve $y = f ( x )$ between two successive ordinates is approximated as

In TV broadcasting both picture and sound are transmitted simultaneously. In this

In two kingdom classification these organisms Chlamydomonas and Spirogyra respectively belong to,

In the structure of diborane

In throwing of two dice, what is the number of exhaustive events ?

In the sewage treatment, bacterial floes are allowed to sediment in a settling tank. This sediment is called as

In the sphalerite (ZnS) structure, $S^{2-}$ ions form a face-centred cubic lattice. Then from the Comers, $Zn^{2+}$ ions are present on the body diagonals at

In the right angled triangle ABC, $\angle B= 90?$, A= (2, 5, 1), B = (1, 4, -3) and C = (-2, 7, -3). If P, S, R are the orthocentre, circumcentre, circumradius of the triangle ABC then $R + P_y = $

In the Searle's method to determine the Young's modulus of a wire, a steel wire of length 156 cm and diameter 0.054 cm is taken as experimental wire. The average increase in length for $1\frac{1}{2}$ kg wt is found to be 0.05.cm. Then the Young's modulus of the wire

In the reaction,$Cu(s)+ 2Ag^+ (aq) \rightarrow Cu^{2+}(aq) + 2Ag(s)$, the reduction half cell reaction is

In the reaction, $ {H_2O_2 + Na_2 CO_3 -> Na_2O_2 + CO_2 + H_2O}$ the substance undergoing oxidation is

In the reaction of excess of $ {LiAlH_4}$ with crotonaldehyde

In the reaction, $ {3Cl_2 + 6 NaOH -> NaClO_3 + 5 NaCl + 3 H_2O }$ the element which loses as well as gains electrons is

In the reaction between $ {SO_2}$ and $ {O_3}$, the equivalent weight of ozone is

In the reaction : $Cl_2 + OH^- \to Cl^- + ClO_4 + H_2O$

In the reaction $ {2 Na_2S_2O_3 + I_2 -> Na_2 S_4 O_6 + NaI}$ the oxidation number of sulphur is

In the pressure cooker the cooking is faster because the increase of vapour pressure

In the process of insertional inactivation