class 12

Missing

JEE Main

Four successive members of the first row transition elements are listed below with atomic numbers. Which one of them is expected to have the highest $E_{M_{3+}/M_{2+}}$ value ?

Connecting you to a tutor in 60 seconds.

Get answers to your doubts.

If z is a complex number of unit modulus and argument q, then $arg(1+z1+z )$equal

The locus of the foot of perpendicular drawn from the centre of the ellipse $x_{2}+3y_{2}=6$on any tangent to it is

If 12 identical balls are to be placed in 3 identical boxes, then the probability that one of the boxes contains exactly 3 balls is :

Given $E_{cr_{3+}/Cr}=−0.74V,E_{MnO_{4}/Mn_{2+}}=1.51cm$ $E_{Cr_{2}O_{7}/Cr_{3+}}=1.33V,E_{Cl/Cl_{−}}=1.36V$ Based on the data given above, strongest oxidising agent will be:

$(lim)_{x0}((1−cos2x)xtan4x3+cosx $ is equal to:

A beam of unpolarised light of intensity $I_{0}$ is passed through a polaroid A and then through another polaroid B which is oriented so that its principal plane makes an angle of $45_{∘}$ relative to that of A. The intensity of the emergent light is:

If a piece of metal is heated to temperature $θ$ and then allowed to cool in a room which is at temperature $θ_{0}$ the graph between the temperature T of the metal and time t will be closest to :

The color of $KMnO_{4}$ is due to :