List of top Chemistry Questions asked in JKCET

In which of the following reactions, increase in pressure will favour the forward reaction?

Which of the following is a Lewis acid?

The solubility of $Fe ( OH )_{3}$ is $x\, mol\, L ^{-1}$. Its $K_{s p}$ would be

The $[ OH ]^{-}$in a solution is $1\, mol\, L ^{-1}$. The $pH$ of the solution is

What is the total number of electrons that can have the values $n=2, l=1, s=1 / 2$ in the electronic configuration $1 s^{2} 2 s^{2} 2 p^{3} ?$

Calculate the wavelength associated with an electron moving with a velocity of $10^{6} m / s$ (mass of $e^{-}=9.1 \times 10^{-31} kg,\, \left. h=6.6 \times 10^{-34} kg\, m ^{2} s ^{-1}\right)$

Which of the following pairs is not correctly matched?

The bond order of $N _{2}^{+}$on the basis of molecular orbital theory is [Atomic number of $N =7$ ]

Which of the following molecules has the maximum dipole moment?

Dimension of universal gas constant $(R)$ is

A nucleophilic substitution reaction proceeds through $S _{ N } 1$ mechanism. So, the reaction is

The product of reaction between aniline and acetic anhydride is

The correct order of electron gain enthalpy $ (\Delta _{eg}H) $ of the halogen atoms is

The $ C-H $ bond distance is the longest in

The dissolution of a gas in a liquid is governed by

$2$ -bromobutane reacts with $OH ^{-}$ in $H _{2} O$ to give $2$ -butanol. The reaction involves

Glucose can be converted into ethyl alcohol using

The correct order of increasing oxidizing power in the series is

The rate of reactions exhibiting negative activation energy

A compound with nitro group was reduced by $Sn / HCl$, followed by treatment with $NaNO _{2} / HCl$ and followed by phenol. The chromophore group in the final compound is

Addition of a non-volatile solute in a volatile ideal solvent

Standard electrode potential of half-cell reactions are given below $C u^{2+}+2 e^{-} \rightarrow C u ; E^{\circ}=0.34\, V $ $Z n^{2+}+2 e^{-} \rightarrow Z n ; E^{\circ}=-0.76 \,V$ What is the emf of the cell?

Avogadro number $\left(6.023 \times 10^{23}\right)$ of carbon atoms are present in

The effective atomic number for $\left[R h\left(H_{2} O\right)_{6}\right]^{3+}$ (at. no. for $R h$ is $45$ ) is

Desalination of sea water can be done by