List of top Chemistry Questions asked in JEE Main

IUPAC Name of the compound IUPAC Name of the compoundis
A gas ‘X’ is added to Nessler’s reagent then brown precipitate is formed, gas X is
In chromatographic techniques, which of the following follows preferential adsorption?
  1. Column chromatography
  2. Thin layer chromatography
  3. Paper chromatography
Match the following: 
 LIST I LIST II
ALymanINear IR
BBalmerIIFar IR
CPaschenIIIVisible
Dp-fundIVUV
The correct statement about Zn, Cd, Hg are
The major product
The major product in the above reaction is
Which reagent gives bright red ppt. With \(Ni^{2+}\) in basic medium?
Which of the following elements has the highest 1st ionization energy ?
Consider the following two statements Statement I: \(SiO_2\) and GeO₂\(GeO_2\) are acidic, \(SnO\) and \(PbO\) are amphoteric Statement II: Allotropes of carbon are formed due to catenation and \(dπ - ρπ\) bond
Solubility of \(Ca_3(PO_4)_2\) in \(100\) \(mL\) of pure water is \(W\) gm. Find out \(K_{sp}\) of \(Ca_3(PO_4)_2\) is: (M: Molecular mass of \(Ca_3(PO_4)_2\))
What is the order of reducing character for \(AsH_3, NH_3, PH_3\) (group \(15\) hydrides)?
A \(10\) \(mL\) hydrocarbon \((C_2H_4)\) on combustion give \(40\) \(mL\) \(CO_2\) and \(50\) \(mL\) \(H_20\). Calculate the value of \(x+y\)
Which is homoleptic complex?
Statement I: \([Ni(H_2O)_6]^{2+}\) is green in colour.
Statement II: \([Ni(ON)_4]^{2-}\) is colourless.
Magnetic behavior of \(Ni^{2+}\) with strong ligand
Moles of \(CH_4\) required for formation of \(22\) \(g\) of \(CO_2\) is \(m \times 10^{-2}\) The value of \(m\) is:
The total number of different alkanes formed when the following mixture is subjected to electrolysis: \(CH_3COONa (aq)\) and \(C_2H_2COONa (aq)\)is (do not consider disproportionation reaction)
If one faraday of electricity is used in the discharging of \(Cu^{2+}\), then find the mass (ing) of \(Cu\) deposited (nearest integer)
The spin only magnetic moment of complex ion \([Ni(NH_3)_6]^{2+}\)+ is \(X \times 10^{-1}\) \(BM\). The value of \(X\) is
Rms velocity of hydrogen at which temperature is equal to that of the oxygen molecule at \(47 \degree\)

Testosterone, which is a steroidal hormone, has the following structure 

The total number of asymmetric carbon atoms in testosterone is ___

\(1 \times 10^{-5} M \,AgNO _3\)is added to \(1\, L\) of saturated solution of\(AgBr\) The conductivity of this solution at \(298 \,K\) is ___ [Given : \(K _{\text {SP }}( AgBr )=49 \times 10^{-13} at 298\, K\)\(\lambda_{ Ag ^{+}}^0=6 \times 10^{-3} S\, m ^2\, mol ^{-1}\) \(\lambda_{ Br ^{-}}^0=8 \times 10^{-3} S\, m ^2\, mol ^{-1}\) \(\lambda_{ NO _3^{-}}^0=7 \times 10^{-3} \,S\, m ^2 \,mol ^{-1}\) ]

Among following compounds, the number of those present in copper matte is ___ .
\(CuCO _3\)
\(Cu _2 S\)
\(Cu _2 O\)
\(FeO\)

Among the following, the number of tranquilizer/s is/are ___ 
A. Chloroliazepoxide 
B. Veronal 
C. Valium 
D. Salvarsan

A metal M crystallizes into two lattices :- face centred cubic (fcc) and body centred cubic (bcc) with unit cell edge length of 20 and \(25 \,\mathring{A}\) respectively The ratio of densities of lattices fcc to bcc for the metal M is ___(Nearest integer)