List of top Questions asked in VITEEE

When SCN\(^{-}\) is added to an aqueous solution containing Fe(NO\(_3\))\(_3\), the complex produced is

The number of unpaired electrons calculated in \(\{Co(NH_3)_6\}^{3+}\) and \(\{CoF_6\}^{3-}\) are

If a plot of \(\log C_0\) versus \(t\) gives a straight line for a given reaction, then the reaction is

The half life period of a first order reaction is 1 min 40 sec. Calculate its rate constant.

The standard free energy change of a reaction is \(\Delta G^\circ = -115\) kJ at 298 K. Calculate equilibrium constant \(K_p\) in \(\log K_p\). (R = 8.314 J k\(^{-1}\) mol\(^{-1}\))

Schottky defects occurs mainly in electrovalent compounds where

The molar conductivities of KCl, NaCl and KNO\(_3\) are 152, 128 and 111 S cm\(^2\) mol\(^{-1}\) respectively. What is the molar conductivity of NaNO\(_3\)?

The electrochemical cell stops working after sometime because :

The amount of electricity required to produce one mole of copper from copper sulphate solution will be

Dipping iron article into a strongly alkaline solution of sodium phosphate

Alkyl cyanides undergo Stephen reduction to produce

A wittig reaction with an aldehyde gives

Cannizzaro reaction is given by

Reaction of PCl\(_3\) and PhMgBr would give

Cl--P--Cl bond angles in PCl\(_5\) molecule are

Milk changes after digestion into:

Which of the following sets consists only of essential amino acids?

Which of the following is ketohexose ?

If \(\vec{a},\vec{b},\vec{c}\) be three unit vectors such that \(\vec{a}\times(\vec{b}\times\vec{c})=\frac{1}{2}\vec{b}\), \(\vec{b}\) and \(\vec{c}\) being non-parallel. If \(\theta_1\) is the angle between \(\vec{a}\) and \(\vec{b}\) and \(\theta_2\) is the angle between \(\vec{a}\) and \(\vec{c}\), then

If \(x,y,z\) are different from zero and
\[ \Delta= \begin{vmatrix} a & b-y & c-z \\ a-x & b & c-z \\ a-x & b-y & c \end{vmatrix}=0 \] then the value of the expression \(\frac{a}{x}+\frac{b}{y}+\frac{c}{z}\) is

Probability of getting positive integral roots of the equation \(x^2-n=0\) for the integer \(n,\ 1\le n \le 40\) is

The number of real roots of the equation \(x^4+\sqrt{x^4+20}=22\) is

Let \(\alpha,\beta\) be the roots of the equation \(x^2-ax+b=0\) and \(A_n=\alpha^n+\beta^n\). Then \(A_{n+1}-aA_n+bA_{n-1}\) is equal to

If the sides of a right-angle triangle form an A.P., the `Sin' of the acute angles are

The plane through the point \((-1,-1,-1)\) and containing the line of intersection of the planes \(\vec{r}\cdot(\hat{i}+3\hat{j}-\hat{k})=0\) and \(\vec{r}\cdot(\hat{i}+2\hat{k})=0\) is